International Journal of Psychophysiology最新文献_第8页

Brain functional differences among ADHD subtypes in children revealed by phase-amplitude coupling analysis of resting-state EEG 静息状态脑电图相幅耦合分析揭示ADHD亚型儿童脑功能差异。

IF 2.5 3区心理学 Q3 NEUROSCIENCES

International Journal of Psychophysiology

Pub Date : 2025-07-18 DOI: 10.1016/j.ijpsycho.2025.113222

Wanting Tang , Jiuchuan Jiang , Haixian Wang

Phase-amplitude coupling (PAC) plays a critical role in attention, sensory processing, and working memory—domains often impaired in children with attention deficit/hyperactivity disorder (ADHD). Therefore, PAC is theoretically well-suited for ADHD research. However, the differences in PAC characteristics among children with ADHD subtypes have not yet been thoroughly investigated. This study recorded resting-state electroencephalographic (rsEEG) from 19 healthy controls (HCs), 33 children with predominantly inattentive type (ADHD-I), and 39 with combined type (ADHD-C). We examined intra- and inter-channel PAC differences across different spatial scales and further analyzed PAC-based brain network properties. The results showed that both ADHD subtypes had stronger α-γ PAC than HCs, with ADHD-C exceeding ADHD-I. ADHD-I showed mainly intrahemispheric changes, while ADHD-C involved the left hemisphere and occipital regions. In the α-β band, PAC was significantly higher in ADHD-C than in ADHD-I, mostly in the left brain. ADHD-I also showed increased inter-channel δ-β PAC compared to HCs, with widespread distribution. These findings suggest the presence of compensatory hyperactivation mechanisms in ADHD, particularly in the ADHD-C subtype. Further brain network analysis supported the “delayed maturation theory” of ADHD and indicated that ADHD-C may represent a shift from a typical small-world network architecture to a more regular network organization. Finally, the (Support Vector Machine) SVM classification results further validated the discriminative power of these features in differentiating HCs from ADHD subtypes. Overall, these findings indicate significant differences in PAC strength and brain network topology among ADHD subtypes, suggesting their potential as biomarkers for distinguishing HCs from ADHD subtypes.

相位振幅耦合（PAC）在注意缺陷/多动障碍（ADHD）儿童的注意、感觉加工和工作记忆领域中起着关键作用。因此，PAC在理论上非常适合于ADHD的研究。然而，ADHD亚型儿童PAC特征的差异尚未被彻底研究。本研究记录了19名健康对照（hc）、33名主要注意力不集中型（ADHD-I）儿童和39名混合型（ADHD-C）儿童的静息状态脑电图（rsEEG）。我们研究了通道内和通道间PAC在不同空间尺度上的差异，并进一步分析了基于PAC的脑网络特性。结果显示，两种ADHD亚型均有较强的α-γ PAC，且ADHD- c亚型均超过ADHD- i亚型。adhd - 1主要表现为半球内改变，而ADHD-C涉及左半球和枕区。在α-β带，PAC在ADHD-C中明显高于ADHD-I，且主要在左脑。与hc相比，ADHD-I也表现出通道间δ-β PAC增加，且分布广泛。这些发现表明ADHD存在代偿性过度激活机制，特别是ADHD- c亚型。进一步的大脑网络分析支持ADHD的“延迟成熟理论”，并表明ADHD- c可能代表着从典型的小世界网络结构向更规则的网络组织的转变。最后，（支持向量机）SVM分类结果进一步验证了这些特征在区分hc与ADHD亚型方面的判别能力。总的来说，这些发现表明ADHD亚型之间PAC强度和大脑网络拓扑结构存在显著差异，这表明它们有可能作为区分hc和ADHD亚型的生物标志物。

{"title":"Brain functional differences among ADHD subtypes in children revealed by phase-amplitude coupling analysis of resting-state EEG","authors":"Wanting Tang , Jiuchuan Jiang , Haixian Wang","doi":"10.1016/j.ijpsycho.2025.113222","DOIUrl":"10.1016/j.ijpsycho.2025.113222","url":null,"abstract":"<div><div>Phase-amplitude coupling (PAC) plays a critical role in attention, sensory processing, and working memory—domains often impaired in children with attention deficit/hyperactivity disorder (ADHD). Therefore, PAC is theoretically well-suited for ADHD research. However, the differences in PAC characteristics among children with ADHD subtypes have not yet been thoroughly investigated. This study recorded resting-state electroencephalographic (rsEEG) from 19 healthy controls (HCs), 33 children with predominantly inattentive type (ADHD-I), and 39 with combined type (ADHD-C). We examined intra- and inter-channel PAC differences across different spatial scales and further analyzed PAC-based brain network properties. The results showed that both ADHD subtypes had stronger α-γ PAC than HCs, with ADHD-C exceeding ADHD-I. ADHD-I showed mainly intrahemispheric changes, while ADHD-C involved the left hemisphere and occipital regions. In the α-β band, PAC was significantly higher in ADHD-C than in ADHD-I, mostly in the left brain. ADHD-I also showed increased inter-channel δ-β PAC compared to HCs, with widespread distribution. These findings suggest the presence of compensatory hyperactivation mechanisms in ADHD, particularly in the ADHD-C subtype. Further brain network analysis supported the “delayed maturation theory” of ADHD and indicated that ADHD-C may represent a shift from a typical small-world network architecture to a more regular network organization. Finally, the (Support Vector Machine) SVM classification results further validated the discriminative power of these features in differentiating HCs from ADHD subtypes. Overall, these findings indicate significant differences in PAC strength and brain network topology among ADHD subtypes, suggesting their potential as biomarkers for distinguishing HCs from ADHD subtypes.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"215 ","pages":"Article 113222"},"PeriodicalIF":2.5,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144676631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reciprocal competition between cognitive tasks and emotional processing revealed by EEG and eye tracking 脑电和眼动追踪显示认知任务与情绪加工之间的相互竞争

IF 2.5 3区心理学 Q3 NEUROSCIENCES

International Journal of Psychophysiology

Pub Date : 2025-07-14 DOI: 10.1016/j.ijpsycho.2025.113221

Jose Mora-Quiroga , Juan Pablo Abril-Ronderos , Marisol R. Lamprea

Processing of engaging stimuli triggers increases in visual exploration, enhances the centroparietal late positive potential (LPP) and produce larger posterior alpha desynchronization (a-ERD), suggesting orienting and attention allocation. It has been shown that a salient arousing image in the background of a cognitive task consumes processing resources from the superimposed task, producing a deleterious effect on performance. On the other hand, experiments designed to change the focus of attention during the processing of emotional stimuli have shown a reduction of the emotional response, indicating an attentional competition between significant stimuli simultaneously presented. This research aimed to describe the competition between the performance on a cognitive task presented in a reduced space of the image (1.2 %) and the processing of emotional images displayed at the background using EEG and Eye Tracking. Results showed that the superimposition of the task had an early attractor effect, evidenced by an above-chance decoding accuracy (about 180 ms since the image onset) and an enhancement in the N1 component. This engagement in the task reduced the processing of the images as evidenced by a decrease in the LPP amplitudes, an enhancement in the a-ERD and a greater dwell-time over the task. Additional analysis showed that the unpleasant pictures were visually explored and emotionally processed after participants responded to the task. In conclusion, the present study supports the competition model of selective attention, highlighting the dominance of top-down control in shaping perceptual and cognitive processing.

参与刺激的处理触发了视觉探索的增加，增强了中央顶叶晚期正电位（LPP），并产生了更大的后α去同步（a-ERD），提示定向和注意分配。已有研究表明，认知任务背景中的显著唤醒图像消耗了叠加任务的处理资源，对表现产生有害影响。另一方面，在处理情绪刺激过程中改变注意焦点的实验表明，情绪反应减少，这表明同时呈现的重要刺激之间存在注意竞争。本研究旨在描述在缩小的图像空间（1.2%）中呈现的认知任务的表现与使用脑电图和眼动追踪在背景中显示的情感图像的处理之间的竞争。结果表明，任务的叠加具有早期吸引子效应，解码精度（从图像开始约180 ms）高于机会，并且N1分量增强。这种任务的参与减少了图像的处理，LPP振幅的下降，a- erd的增强和任务期间更长的停留时间证明了这一点。进一步的分析表明，在参与者对任务做出反应后，他们在视觉上探索了不愉快的照片，并在情感上处理了这些照片。总之，本研究支持选择性注意的竞争模型，强调了自上而下控制在塑造知觉和认知加工中的主导地位。

{"title":"Reciprocal competition between cognitive tasks and emotional processing revealed by EEG and eye tracking","authors":"Jose Mora-Quiroga , Juan Pablo Abril-Ronderos , Marisol R. Lamprea","doi":"10.1016/j.ijpsycho.2025.113221","DOIUrl":"10.1016/j.ijpsycho.2025.113221","url":null,"abstract":"<div><div>Processing of engaging stimuli triggers increases in visual exploration, enhances the centroparietal late positive potential (LPP) and produce larger posterior alpha desynchronization (a-ERD), suggesting orienting and attention allocation. It has been shown that a salient arousing image in the background of a cognitive task consumes processing resources from the superimposed task, producing a deleterious effect on performance. On the other hand, experiments designed to change the focus of attention during the processing of emotional stimuli have shown a reduction of the emotional response, indicating an attentional competition between significant stimuli simultaneously presented. This research aimed to describe the competition between the performance on a cognitive task presented in a reduced space of the image (1.2 %) and the processing of emotional images displayed at the background using EEG and Eye Tracking. Results showed that the superimposition of the task had an early attractor effect, evidenced by an above-chance decoding accuracy (about 180 ms since the image onset) and an enhancement in the N1 component. This engagement in the task reduced the processing of the images as evidenced by a decrease in the LPP amplitudes, an enhancement in the a-ERD and a greater dwell-time over the task. Additional analysis showed that the unpleasant pictures were visually explored and emotionally processed after participants responded to the task. In conclusion, the present study supports the competition model of selective attention, highlighting the dominance of top-down control in shaping perceptual and cognitive processing.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"214 ","pages":"Article 113221"},"PeriodicalIF":2.5,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cardiovascular responses to mental fatigue in a sequential task paradigm 在顺序任务范式中心血管对精神疲劳的反应。

IF 2.5 3区心理学 Q3 NEUROSCIENCES

International Journal of Psychophysiology

Pub Date : 2025-07-11 DOI: 10.1016/j.ijpsycho.2025.113210

Ugo Place , Pierre-Vincent Paubel , Rémi L. Capa

This study investigated mental fatigue within a sequential task paradigm using cardiovascular measures and predictions derived from Motivational Intensity Theory. Forty-two undergraduate students were assigned to either a fatigue group (n = 21) or a control group (n = 21). The fatigue group completed a difficult task, while the control group watched a documentary, before both groups performed the same difficult subsequent task. Subjective fatigue, performance, and cardiovascular responses were assessed. Participants in the fatigue group reported significantly higher levels of subjective fatigue and lower effort intensity during the subsequent task compared to the control group, as evidenced by reduced PEP and HR reactivity. Despite these differences, performance on the subsequent task did not differ between groups. These findings suggest that a prior difficult task can increase the perceived difficulty of subsequent tasks. When the subsequent task is also difficult, the effort required may be viewed as no longer worthwhile, leading to reduced effort investment. Cardiovascular measures and theory-driven approaches, such as Motivational Intensity Theory, provide valuable insights for understanding mental fatigue and should be employed rather than relying exclusively on performance-based data.

本研究利用心血管测量和动机强度理论的预测，在顺序任务范式下调查了精神疲劳。42名本科生被分配到疲劳组（n = 21）或对照组（n = 21）。疲劳组完成了一项困难的任务，而对照组则观看了一部纪录片，然后两组都执行了同样困难的后续任务。评估主观疲劳、表现和心血管反应。与对照组相比，疲劳组的参与者在随后的任务中表现出明显更高的主观疲劳水平和更低的努力强度，这可以从PEP和HR反应性的降低中得到证明。尽管存在这些差异，但两组之间在后续任务中的表现并没有差异。这些发现表明，先前的困难任务可以增加后续任务的感知难度。当后续任务也很困难时，所需的努力可能被视为不再值得，从而导致减少努力投资。心血管测量和理论驱动的方法，如动机强度理论，为理解精神疲劳提供了有价值的见解，应该被采用，而不是完全依赖于基于表现的数据。

{"title":"Cardiovascular responses to mental fatigue in a sequential task paradigm","authors":"Ugo Place , Pierre-Vincent Paubel , Rémi L. Capa","doi":"10.1016/j.ijpsycho.2025.113210","DOIUrl":"10.1016/j.ijpsycho.2025.113210","url":null,"abstract":"<div><div>This study investigated mental fatigue within a sequential task paradigm using cardiovascular measures and predictions derived from Motivational Intensity Theory. Forty-two undergraduate students were assigned to either a fatigue group (<em>n</em> = 21) or a control group (<em>n</em> = 21). The fatigue group completed a difficult task, while the control group watched a documentary, before both groups performed the same difficult subsequent task. Subjective fatigue, performance, and cardiovascular responses were assessed. Participants in the fatigue group reported significantly higher levels of subjective fatigue and lower effort intensity during the subsequent task compared to the control group, as evidenced by reduced PEP and HR reactivity. Despite these differences, performance on the subsequent task did not differ between groups. These findings suggest that a prior difficult task can increase the perceived difficulty of subsequent tasks. When the subsequent task is also difficult, the effort required may be viewed as no longer worthwhile, leading to reduced effort investment. Cardiovascular measures and theory-driven approaches, such as Motivational Intensity Theory, provide valuable insights for understanding mental fatigue and should be employed rather than relying exclusively on performance-based data.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"215 ","pages":"Article 113210"},"PeriodicalIF":2.5,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144621146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spontaneous activity in the vACC mediates the relationship between present fatalistic time perspective and procrastination vACC中的自发活动在现在宿命论时间观与拖延症之间起中介作用。

IF 2.5 3区心理学 Q3 NEUROSCIENCES

International Journal of Psychophysiology

Pub Date : 2025-07-11 DOI: 10.1016/j.ijpsycho.2025.113220

Jian Lu , Rong Zhang , Tingyong Feng

Procrastination is a detrimental behavior linked to a broad spectrum of negative life outcomes, such as impaired educational and occupational performance, and compromised physical and mental health. Despite prior research has indicated that individuals with an elevated present fatalistic time perspective (PFTP) exhibit increased procrastination, the neural basis underlying such association still remains unexplored. To address this issue, participants from two large independent samples (N₁ = 479, N₂ = 445) were recruited to undergo resting-state functional magnetic resonance imaging (fMRI) and complete questionnaires measuring PFTP and procrastination. Behavioral results from both samples indicated that PFTP was consistently positively correlated with procrastination. Whole-brain correlation analysis in Sample 1 revealed that PFTP was associated with reduced amplitude of low-frequency fluctuations (ALFF) in the left ventral anterior cingulate cortex (vACC). Notably, ALFF in the left vACC in Sample 2 was found to mediate the association between PFTP and procrastination. The present study provides the first considerable evidence that decreased spontaneous activity in the vACC, a region implicated in emotion regulation, serves as a neural substrate mediating the association between PFTP and procrastination, thus offering insights into the potential mechanisms underlying this relationship.

拖延症是一种有害的行为，与一系列负面的生活结果有关，比如学业和职业表现受损，身心健康受损。尽管先前的研究表明，具有较高的现在宿命论时间观（PFTP）的个体表现出更多的拖延症，但这种联系背后的神经基础仍未被探索。为了解决这一问题，我们从两个大的独立样本（N1 = 479,N2 = 445）中招募参与者进行静息状态功能磁共振成像（fMRI），并完成测量PFTP和拖延症的问卷调查。两个样本的行为结果都表明PFTP与拖延症始终呈正相关。样本1的全脑相关分析显示，PFTP与左腹前扣带皮层（vACC）低频波动（ALFF）幅度降低有关。值得注意的是，样本2中左侧vACC中的ALFF被发现在PFTP与拖延之间起中介作用。本研究首次提供了大量证据，证明与情绪调节有关的vACC区域自发活动的减少是PFTP与拖延症之间联系的神经基质，从而为这种关系的潜在机制提供了见解。

{"title":"Spontaneous activity in the vACC mediates the relationship between present fatalistic time perspective and procrastination","authors":"Jian Lu , Rong Zhang , Tingyong Feng","doi":"10.1016/j.ijpsycho.2025.113220","DOIUrl":"10.1016/j.ijpsycho.2025.113220","url":null,"abstract":"<div><div>Procrastination is a detrimental behavior linked to a broad spectrum of negative life outcomes, such as impaired educational and occupational performance, and compromised physical and mental health. Despite prior research has indicated that individuals with an elevated present fatalistic time perspective (PFTP) exhibit increased procrastination, the neural basis underlying such association still remains unexplored. To address this issue, participants from two large independent samples (<em>N</em><sub>1</sub> = 479, <em>N</em><sub>2</sub> = 445) were recruited to undergo resting-state functional magnetic resonance imaging (fMRI) and complete questionnaires measuring PFTP and procrastination. Behavioral results from both samples indicated that PFTP was consistently positively correlated with procrastination. Whole-brain correlation analysis in Sample 1 revealed that PFTP was associated with reduced amplitude of low-frequency fluctuations (ALFF) in the left ventral anterior cingulate cortex (vACC). Notably, ALFF in the left vACC in Sample 2 was found to mediate the association between PFTP and procrastination. The present study provides the first considerable evidence that decreased spontaneous activity in the vACC, a region implicated in emotion regulation, serves as a neural substrate mediating the association between PFTP and procrastination, thus offering insights into the potential mechanisms underlying this relationship.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"214 ","pages":"Article 113220"},"PeriodicalIF":2.5,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144627793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Hawthorne effect on wearable technology: A systematic review 霍桑对可穿戴技术的影响：系统回顾。

IF 2.5 3区心理学 Q3 NEUROSCIENCES

International Journal of Psychophysiology

Pub Date : 2025-07-08 DOI: 10.1016/j.ijpsycho.2025.113207

Diego Agustín Abelleyra Lastoria , Sophie Keynes , Martine Nurek , Catherine Kellett , Caroline Blanca Hing

Introduction

The use of wearable technology has increased over time. Wearable technology can be used to track, measure, and document physical activity, and to assess performance in healthcare. The Hawthorne effect may play an important role in wearable technology, such that awareness of being monitored can influence the behavioural outcomes of interest. The aim of this systematic review was to ascertain the acknowledgement and management of the Hawthorne effect in studies pertaining to wearable technology.

Methods

Published and unpublished literature databases, conference proceedings and the reference lists of included studies were searched to the 31st of August 2024. Studies were eligible if they acknowledged the Hawthorne effect on wearable technology, attempted to control for it, measured its impact on patient outcomes, or leveraged it to achieve behaviour change.

Results

A total of 16,314,027 records implementing wearable technology were identified. Of these, only 28 addressed the Hawthorne effect (0.0002 %) (2786 subjects). “Acknowledgment” studies (n = 21, 75 %) mentioned the Hawthorne effect but did not measure or control for it. Of these, only 13 gave a clear indication (speculation) of how it may have impacted outcomes. “Minimising” studies (n = 4, 14.3 %) attempted to mitigate the Hawthorne effect. Of these, only two measured and reported its impact on outcomes, yielding conflicting results. Finally, “Harnessing” studies (n = 3, 10.7 %) attempted to utilize the Hawthorne effect to achieve behavioural change. All three measured and reported its impact on outcomes, with two finding that awareness of being monitored increased behaviour change.

Conclusion

Very few studies on wearable technology acknowledge the impact of the Hawthorne effect on outcomes. The Hawthorne effect must be considered, measured, and reported in randomised controlled trials implementing such technologies. Clinicians might also consider harnessing the Hawthrone effect to increase behaviour change and positive outcomes.

导读：随着时间的推移，可穿戴技术的使用越来越多。可穿戴技术可用于跟踪、测量和记录身体活动，并评估医疗保健领域的表现。霍桑效应可能在可穿戴技术中发挥重要作用，例如，意识到被监控可以影响感兴趣的行为结果。本系统综述的目的是确定可穿戴技术研究中霍桑效应的认可和管理。方法：检索至2024年8月31日已发表和未发表的文献数据库、会议论文集及纳入研究的参考文献。如果研究承认霍桑对可穿戴技术的影响，试图控制它，测量它对患者结果的影响，或者利用它来实现行为改变，那么研究就符合条件。结果：共识别了16314027条实施可穿戴技术的记录。在这些研究中，只有28个涉及霍桑效应（0.0002 %）（2786个受试者），以三种方式之一：1)“确认”研究（n = 21,75 %）提到了霍桑效应，但没有对其进行测量或控制。其中，只有13个给出了它可能如何影响结果的明确指示（推测）；2)“最小化”研究（n = 4,14.3 %）试图减轻霍桑效应。其中，只有两个国家测量并报告了其对结果的影响，结果相互矛盾；和3)“利用”研究（n = 3,10.7 %）试图利用霍桑效应来实现行为改变。这三家公司都测量并报告了它对结果的影响，其中两家发现，意识到被监控会增加行为改变。结论：很少有关于可穿戴技术的研究承认霍桑效应对结果的影响。在实施这些技术的随机对照试验中，必须考虑、测量和报告霍桑效应。技术开发人员也可以考虑利用山楂座效应来增加行为改变和积极的结果。

{"title":"The Hawthorne effect on wearable technology: A systematic review","authors":"Diego Agustín Abelleyra Lastoria , Sophie Keynes , Martine Nurek , Catherine Kellett , Caroline Blanca Hing","doi":"10.1016/j.ijpsycho.2025.113207","DOIUrl":"10.1016/j.ijpsycho.2025.113207","url":null,"abstract":"<div><h3>Introduction</h3><div>The use of wearable technology has increased over time. Wearable technology can be used to track, measure, and document physical activity, and to assess performance in healthcare. The Hawthorne effect may play an important role in wearable technology, such that awareness of being monitored can influence the behavioural outcomes of interest. The aim of this systematic review was to ascertain the acknowledgement and management of the Hawthorne effect in studies pertaining to wearable technology.</div></div><div><h3>Methods</h3><div>Published and unpublished literature databases, conference proceedings and the reference lists of included studies were searched to the 31st of August 2024. Studies were eligible if they acknowledged the Hawthorne effect on wearable technology, attempted to control for it, measured its impact on patient outcomes, or leveraged it to achieve behaviour change.</div></div><div><h3>Results</h3><div>A total of 16,314,027 records implementing wearable technology were identified. Of these, only 28 addressed the Hawthorne effect (0.0002 %) (2786 subjects). “Acknowledgment” studies (<em>n</em> = 21, 75 %) mentioned the Hawthorne effect but did not measure or control for it. Of these, only 13 gave a clear indication (speculation) of how it may have impacted outcomes. “Minimising” studies (<em>n</em> = 4, 14.3 %) attempted to mitigate the Hawthorne effect. Of these, only two measured and reported its impact on outcomes, yielding conflicting results. Finally, “Harnessing” studies (<em>n</em> = 3, 10.7 %) attempted to utilize the Hawthorne effect to achieve behavioural change. All three measured and reported its impact on outcomes, with two finding that awareness of being monitored increased behaviour change.</div></div><div><h3>Conclusion</h3><div>Very few studies on wearable technology acknowledge the impact of the Hawthorne effect on outcomes. The Hawthorne effect must be considered, measured, and reported in randomised controlled trials implementing such technologies. Clinicians might also consider harnessing the Hawthrone effect to increase behaviour change and positive outcomes.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"214 ","pages":"Article 113207"},"PeriodicalIF":2.5,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144610340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The cognitive instability aspect of impulsivity predicts the ERN: An ERP study 冲动的认知不稳定性方面预测了ERN：一项ERP研究

IF 2.5 3区心理学 Q3 NEUROSCIENCES

International Journal of Psychophysiology

Pub Date : 2025-07-06 DOI: 10.1016/j.ijpsycho.2025.113206

Folly Folivi , Chandlyr M. Denaro , Alan A. Hartley , Cindy M. Bukach , Jane W. Couperus , Catherine L. Reed

Introduction

Defined as a tendency to act without thinking or considering the consequences, impulsivity may affect the ability to detect and respond to errors. However, impulsivity is a multidimensional construct with attentional, motor and non-planning components, among others. Not all aspects of impulsivity may relate to error monitoring. In this event-related potential (ERP) study we used an individual difference approach with a large sample of healthy young adults (n = 261) and the flanker task to explore what specific facets of impulsivity were predictive of error monitoring as indexed by the error-related negativity (ERN).

Methods

The Barratt Impulsiveness Scale (BIS-11) was used to measure impulsivity and its subcomponents. A visual flanker task was administered to elicit the commission of errors and the associated ERN.

Results

BIS-11 total scores did not correlate with ERN amplitude. Using an exploratory strategy, we first regressed scores for six previously identified components of impulsivity on the ERN, finding a significant coefficient for cognitive instability. Because internal consistency was low, we next conducted a principal component analysis of the 30 BIS-11 items; three factors emerged: planning, impetuosity and cognitive instability. When the three scale scores were regressed on ERN amplitudes, only cognitive instability (“racing thoughts”) was predictive, associating greater cognitive instability with reduced ERN amplitudes.

Conclusions

Increases in the cognitive instability aspect of impulsivity predicts reduced ERN amplitudes, which may be related to individual differences in the motivational salience of errors.

冲动性被定义为一种不考虑后果就采取行动的倾向，它会影响发现错误和对错误做出反应的能力。然而，冲动是一个多维结构，包括注意、运动和非计划成分等。并不是冲动的所有方面都与错误监控有关。在这项事件相关电位（ERP）研究中，我们采用了个体差异方法，选取了261名健康的年轻成年人作为大样本，并通过侧卫任务来探索冲动的哪些特定方面可以预测错误监测，并以错误相关负性（ERN）为指标。方法采用Barratt冲动性量表（BIS-11）对冲动性及其成分进行测量。通过一个视觉侧护任务来诱导错误的产生和相关的ERN。结果bis -11总分与ERN幅值无相关性。采用探索性策略，我们首先在神经网络上回归了六个先前确定的冲动性成分的分数，发现了认知不稳定性的显著系数。由于内部一致性较低，我们接下来对30个BIS-11项目进行了主成分分析；出现了三个因素：计划、冲动和认知不稳定。当三个量表得分回归到神经网络振幅时，只有认知不稳定（“快速思考”）是可预测的，更大的认知不稳定与神经网络振幅降低有关。结论冲动性认知不稳定性方面的增加预示着神经网络波幅的降低，这可能与错误动机显著性的个体差异有关。

{"title":"The cognitive instability aspect of impulsivity predicts the ERN: An ERP study","authors":"Folly Folivi , Chandlyr M. Denaro , Alan A. Hartley , Cindy M. Bukach , Jane W. Couperus , Catherine L. Reed","doi":"10.1016/j.ijpsycho.2025.113206","DOIUrl":"10.1016/j.ijpsycho.2025.113206","url":null,"abstract":"<div><h3>Introduction</h3><div>Defined as a tendency to act without thinking or considering the consequences, impulsivity may affect the ability to detect and respond to errors. However, impulsivity is a multidimensional construct with attentional, motor and non-planning components, among others. Not all aspects of impulsivity may relate to error monitoring. In this event-related potential (ERP) study we used an individual difference approach with a large sample of healthy young adults (<em>n</em> = 261) and the flanker task to explore what specific facets of impulsivity were predictive of error monitoring as indexed by the error-related negativity (ERN).</div></div><div><h3>Methods</h3><div>The Barratt Impulsiveness Scale (BIS-11) was used to measure impulsivity and its subcomponents. A visual flanker task was administered to elicit the commission of errors and the associated ERN.</div></div><div><h3>Results</h3><div>BIS-11 total scores did not correlate with ERN amplitude. Using an exploratory strategy, we first regressed scores for six previously identified components of impulsivity on the ERN, finding a significant coefficient for cognitive instability. Because internal consistency was low, we next conducted a principal component analysis of the 30 BIS-11 items; three factors emerged: planning, impetuosity and cognitive instability. When the three scale scores were regressed on ERN amplitudes, only cognitive instability (“racing thoughts”) was predictive, associating greater cognitive instability with reduced ERN amplitudes.</div></div><div><h3>Conclusions</h3><div>Increases in the cognitive instability aspect of impulsivity predicts reduced ERN amplitudes, which may be related to individual differences in the motivational salience of errors.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"214 ","pages":"Article 113206"},"PeriodicalIF":2.5,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144581243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parasympathetic decreases immediately following self-reported cannabis smoking among adults living with cannabis use disorder 在大麻使用障碍的成年人中，副交感神经在自我报告吸食大麻后立即减少

IF 2.5 3区心理学 Q3 NEUROSCIENCES

International Journal of Psychophysiology

Pub Date : 2025-07-06 DOI: 10.1016/j.ijpsycho.2025.113211

Larry Keen , Caroline Kuno , Alexis Morris

The purpose of the current study was to determine the difference between heart rate variability levels before and after self-reported non-medical cannabis use within a sample of African American young adults living with cannabis use disorder. The sample included 31 self-identifying African American undergraduate students (Women = 83.87 %), with a mean age of approximately 19.71 (SD = 1.49) years. After giving consent, the participants were administered a semi-structured interview that included the Mini International Neuropsychiatric Interview (MINI) to determine cannabis use disorder (CUD) status. If a participant met the criteria for CUD, they were instructed to wear a Garmin smartwatch for three consecutive days. The Garmin smartwatch collected interbeat intervals via photoplethysmographic measurement. Participants were also instructed to complete a survey each time they smoked cannabis, a survey that asked for the start and stop times for each cannabis smoking session. Employing mixed ANOVA and Multilevel models, results suggest a significant difference in HRV levels before and after self-reported cannabis smoking. Specifically, both time and frequency domain HRV metrics are significantly lower than levels prior to smoking cannabis. Further, we see a significant increase in average heart rate from before to after cannabis smoking. The current findings identify cannabis' acute autonomic cardiac influence among individuals living with CUD. Future research should elucidate the impact of repeated cannabis exposure and their long term autonomic implications, including more cannabis ingestion modalities.

本研究的目的是确定在患有大麻使用障碍的非裔美国青年样本中，自我报告使用非医用大麻前后心率变异性水平的差异。样本包括31名自我认同的非裔美国本科生（女性= 83.87%），平均年龄约为19.71岁（SD = 1.49）。在给予同意后，参与者进行了半结构化访谈，其中包括迷你国际神经精神病学访谈（Mini），以确定大麻使用障碍（CUD）状态。如果参与者符合CUD的标准，他们被要求连续三天佩戴Garmin智能手表。Garmin智能手表通过光电容积脉搏测量来收集心跳间隔。参与者还被要求在每次吸食大麻时完成一项调查，该调查询问了每次吸食大麻的开始和停止时间。采用混合方差分析和多水平模型，结果表明，自我报告吸食大麻前后的HRV水平有显著差异。具体来说，时间和频域HRV指标都明显低于吸食大麻之前的水平。此外，我们看到吸食大麻前后的平均心率显著增加。目前的研究结果确定了大麻对CUD患者的急性自主心脏影响。未来的研究应该阐明反复接触大麻的影响及其长期的自主神经影响，包括更多的大麻摄入方式。

{"title":"Parasympathetic decreases immediately following self-reported cannabis smoking among adults living with cannabis use disorder","authors":"Larry Keen , Caroline Kuno , Alexis Morris","doi":"10.1016/j.ijpsycho.2025.113211","DOIUrl":"10.1016/j.ijpsycho.2025.113211","url":null,"abstract":"<div><div>The purpose of the current study was to determine the difference between heart rate variability levels before and after self-reported non-medical cannabis use within a sample of African American young adults living with cannabis use disorder. The sample included 31 self-identifying African American undergraduate students (Women = 83.87 %), with a mean age of approximately 19.71 (SD = 1.49) years. After giving consent, the participants were administered a semi-structured interview that included the Mini International Neuropsychiatric Interview (MINI) to determine cannabis use disorder (CUD) status. If a participant met the criteria for CUD, they were instructed to wear a Garmin smartwatch for three consecutive days. The Garmin smartwatch collected interbeat intervals via photoplethysmographic measurement. Participants were also instructed to complete a survey each time they smoked cannabis, a survey that asked for the start and stop times for each cannabis smoking session. Employing mixed ANOVA and Multilevel models, results suggest a significant difference in HRV levels before and after self-reported cannabis smoking. Specifically, both time and frequency domain HRV metrics are significantly lower than levels prior to smoking cannabis. Further, we see a significant increase in average heart rate from before to after cannabis smoking. The current findings identify cannabis' acute autonomic cardiac influence among individuals living with CUD. Future research should elucidate the impact of repeated cannabis exposure and their long term autonomic implications, including more cannabis ingestion modalities.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"214 ","pages":"Article 113211"},"PeriodicalIF":2.5,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144581282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preliminary evidence for anxiety-linked neural sensitivity to emotional faces using fast periodic visual stimulation 初步证据表明，使用快速周期性视觉刺激，与焦虑相关的神经对情绪化面孔的敏感性

IF 2.5 3区心理学 Q3 NEUROSCIENCES

International Journal of Psychophysiology

Pub Date : 2025-07-05 DOI: 10.1016/j.ijpsycho.2025.113212

David Vandenheever , Haleigh Davidson , Jennifer Kemp , Zack Murphy , Autumn Kujawa , Jingyi Shi , Michael R. Nadorff , Kayla Bates-Brantley , MacKenzie Sidwell

Facial expression processing is crucial for social communication and survival, with anxiety disorders often linked to alterations in attentional biases toward threat-related stimuli. While previous studies using event-related potentials (ERPs) have yielded conflicting findings regarding threat sensitivity in anxiety, Fast Periodic Visual Stimulation (FPVS) offers a high signal-to-noise, implicit alternative for assessing emotion processing. This study utilized FPVS to investigate neural responses to facial expressions in individuals with elevated anxiety-related characteristics (e.g., prior diagnosis or elevated symptom scores) and those without. EEG responses were recorded while participants viewed sequences of neutral faces interspersed with emotional oddball expressions (angry, fearful, happy, and sad). Results revealed robust neural discrimination responses to all facial expressions. Participants with anxiety-related characteristics showed significantly greater summed baseline-corrected amplitudes (BCA) at occipital electrodes in response to angry and sad oddball faces compared to the low-anxiety group. This was accompanied by reduced top-down interactions. Although, dimensional anxiety scores were generally low, suggesting results may reflect residual or trait-level differences rather than acute symptomatology, these findings provide preliminary evidence that FPVS may be sensitive to enduring differences in emotion processing associated with anxiety vulnerability.

面部表情处理对社会沟通和生存至关重要，焦虑症通常与对威胁相关刺激的注意力偏差改变有关。虽然先前使用事件相关电位（ERPs）的研究在焦虑的威胁敏感性方面得出了相互矛盾的发现，但快速周期性视觉刺激（FPVS）提供了一种高信号噪声、隐含的替代方法来评估情绪处理。本研究利用FPVS研究了焦虑相关特征升高（如先前诊断或症状评分升高）和非焦虑相关特征升高的个体对面部表情的神经反应。研究人员记录了参与者在观看中性面孔序列时的脑电图反应，这些面孔中夹杂着奇怪的情绪表情（愤怒、恐惧、快乐和悲伤）。结果显示，神经系统对所有面部表情都有较强的识别反应。与低焦虑组相比，具有焦虑相关特征的参与者在面对愤怒和悲伤的古怪面孔时，枕电极上的基线校正振幅（BCA）明显更高。这伴随着自上而下的互动减少。虽然维度焦虑得分普遍较低，这表明结果可能反映了残留或特质水平的差异，而不是急性症状，但这些发现提供了初步证据，表明FPVS可能对与焦虑脆弱性相关的情绪处理的持久差异敏感。

{"title":"Preliminary evidence for anxiety-linked neural sensitivity to emotional faces using fast periodic visual stimulation","authors":"David Vandenheever , Haleigh Davidson , Jennifer Kemp , Zack Murphy , Autumn Kujawa , Jingyi Shi , Michael R. Nadorff , Kayla Bates-Brantley , MacKenzie Sidwell","doi":"10.1016/j.ijpsycho.2025.113212","DOIUrl":"10.1016/j.ijpsycho.2025.113212","url":null,"abstract":"<div><div>Facial expression processing is crucial for social communication and survival, with anxiety disorders often linked to alterations in attentional biases toward threat-related stimuli. While previous studies using event-related potentials (ERPs) have yielded conflicting findings regarding threat sensitivity in anxiety, Fast Periodic Visual Stimulation (FPVS) offers a high signal-to-noise, implicit alternative for assessing emotion processing. This study utilized FPVS to investigate neural responses to facial expressions in individuals with elevated anxiety-related characteristics (e.g., prior diagnosis or elevated symptom scores) and those without. EEG responses were recorded while participants viewed sequences of neutral faces interspersed with emotional oddball expressions (angry, fearful, happy, and sad). Results revealed robust neural discrimination responses to all facial expressions. Participants with anxiety-related characteristics showed significantly greater summed baseline-corrected amplitudes (BCA) at occipital electrodes in response to angry and sad oddball faces compared to the low-anxiety group. This was accompanied by reduced top-down interactions. Although, dimensional anxiety scores were generally low, suggesting results may reflect residual or trait-level differences rather than acute symptomatology, these findings provide preliminary evidence that FPVS may be sensitive to enduring differences in emotion processing associated with anxiety vulnerability.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"214 ","pages":"Article 113212"},"PeriodicalIF":2.5,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phonological, orthographic, and semantic processing during sentence reading in adults with dyslexia: Behavioral and neural correlates 成年失读症患者句子阅读过程中的语音、正字法和语义加工：行为和神经相关

IF 2.5 3区心理学 Q3 NEUROSCIENCES

International Journal of Psychophysiology

Pub Date : 2025-07-04 DOI: 10.1016/j.ijpsycho.2025.113209

Inbal Bechler-Sivan , Shay Menashe , Shelley Shaul

The reported study used behavioral measures and event-related potentials (ERPs) to investigate phonological, orthographic, and semantic processing during sentence reading in adults with dyslexia. Twenty-seven nonimpaired (13 men, 20–31 years) and 25 dyslexic (11 men, 20–32 years) readers were presented with sentences that included four possible endings: a congruent ending in which the last word was semantically related to the sentence, an incongruent ending with no semantic relationship, a homophone which was based on a congruent word, and an orthographically similar word to a congruent word. The participants were asked to decide if the sentence-final word was semantically related to the sentence. Response accuracy, reaction times, and both amplitude and peak latency of the N400 were investigated. The N400 component has been reported as a brain measure that reflects the integration of phonological and orthographic processes into meaning during word reading. The behavioral results revealed that the dyslexic readers were less accurate overall compared to the nonimpaired readers. In addition, the dyslexic readers had longer reaction times for the phonological, orthographic, and incongruent conditions compared to the nonimpaired readers. The N400 results showed that the dyslexic readers produced larger amplitude compared to the nonimpaired readers for the congruent (p = 0.021) and orthographic (p = 0.041) conditions. Moreover, the dyslexic readers had longer latency than the nonimpaired readers for the congruent (p = 0.012), orthographic (p = 0.015), and incongruent (p = 0.011) conditions. The behavioral and ERP findings suggest that adults with dyslexia are impaired in phonological, orthographic, and semantic processing during sentence reading.

该研究使用行为测量和事件相关电位（ERPs）来研究成人阅读障碍患者在句子阅读过程中的语音、正字法和语义加工。27名未受损的读者（13名男性，20-31岁）和25名阅读困难的读者（11名男性，20-32岁）被提供了包含四种可能结尾的句子：一个完整的结尾，最后一个单词在语义上与句子相关；一个不完整的结尾，没有语义关系；一个同音同音的结尾，基于一个完整的单词；一个与一个完整的单词拼写相似的单词。参与者被要求判断句子的最后一个单词在语义上是否与句子相关。研究了N400的反应精度、反应时间、振幅和峰值潜伏期。据报道，N400成分是一种大脑测量方法，反映了单词阅读过程中语音和正字法过程与意义的整合。行为结果显示，与未受损的读者相比，诵读困难的读者总体上更不准确。此外，与未受损的读者相比，诵读困难的读者在语音、正字法和不一致条件下的反应时间更长。N400结果显示，在全等（p = 0.021）和正字法（p = 0.041）条件下，诵读困难的读者产生的波幅比正常读者大。此外，阅读困难者在全等（p = 0.012）、正字法（p = 0.015）和不全等（p = 0.011）条件下的潜伏期比正常阅读困难者长。行为和ERP研究结果表明，成人失读症患者在句子阅读过程中语音、正字法和语义加工受到损害。

{"title":"Phonological, orthographic, and semantic processing during sentence reading in adults with dyslexia: Behavioral and neural correlates","authors":"Inbal Bechler-Sivan , Shay Menashe , Shelley Shaul","doi":"10.1016/j.ijpsycho.2025.113209","DOIUrl":"10.1016/j.ijpsycho.2025.113209","url":null,"abstract":"<div><div>The reported study used behavioral measures and event-related potentials (ERPs) to investigate phonological, orthographic, and semantic processing during sentence reading in adults with dyslexia. Twenty-seven nonimpaired (13 men, 20–31 years) and 25 dyslexic (11 men, 20–32 years) readers were presented with sentences that included four possible endings: a congruent ending in which the last word was semantically related to the sentence, an incongruent ending with no semantic relationship, a homophone which was based on a congruent word, and an orthographically similar word to a congruent word. The participants were asked to decide if the sentence-final word was semantically related to the sentence. Response accuracy, reaction times, and both amplitude and peak latency of the N400 were investigated. The N400 component has been reported as a brain measure that reflects the integration of phonological and orthographic processes into meaning during word reading. The behavioral results revealed that the dyslexic readers were less accurate overall compared to the nonimpaired readers. In addition, the dyslexic readers had longer reaction times for the phonological, orthographic, and incongruent conditions compared to the nonimpaired readers. The N400 results showed that the dyslexic readers produced larger amplitude compared to the nonimpaired readers for the congruent (<em>p</em> = 0.021) and orthographic (<em>p</em> = 0.041) conditions. Moreover, the dyslexic readers had longer latency than the nonimpaired readers for the congruent (<em>p</em> = 0.012), orthographic (<em>p</em> = 0.015), and incongruent (<em>p</em> = 0.011) conditions. The behavioral and ERP findings suggest that adults with dyslexia are impaired in phonological, orthographic, and semantic processing during sentence reading.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"214 ","pages":"Article 113209"},"PeriodicalIF":2.5,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hearing What We Expect? MEG Insights into Predictive Coding in Language 听到我们期待什么？语言预测编码的MEG洞察

IF 2.5 3区心理学 Q3 NEUROSCIENCES

International Journal of Psychophysiology

Pub Date : 2025-07-01 DOI: 10.1016/j.ijpsycho.2025.113098

Jakub Szewczyk

引用次数: 0