Biological Psychology最新文献_第7页

Sex differences in attentional visual processing but not in plasticity-related modulation of visually evoked potentials 注意视觉加工的性别差异，但在视觉诱发电位的可塑性相关调节中无性别差异

IF 2.9 3区医学 Q1 BEHAVIORAL SCIENCES

Biological Psychology

Pub Date : 2025-10-01 DOI: 10.1016/j.biopsycho.2025.109135

Viktoria Galuba , Lena Harbig , Felix Mülsch , Bernd Feige , Juan Carlos Baldermann , Katharina Domschke , Claus Normann , Stefan Vestring

Impaired neuroplasticity is a core feature underlying many psychiatric disorders. Long-term potentiation (LTP)-like modulation of visually evoked potentials (VEPs), measured via EEG, represents a promising approach to assess plasticity in humans. Recent evidence indicates potential sex differences in VEP-based plasticity. This study investigated sex differences in visual cortical processing and plasticity by quantifying LTP-like modulation of VEPs. We analysed 96 available recordings from 61 women (mean age = 26.53 ± 6.87 years) and 35 men (mean age = 28.77 ± 8.63 years). VEPs were elicited using a checkerboard reversal stimulus (20 s at 2 Hz), presented before and after a 10-minute visual modulation. Post-modulation VEPs were recorded at 2, 8, 12, 18, 22, and 28 min. Amplitude changes from baseline to post-modulation were assessed. Predefined VEP components were analysed using linear mixed-effects models (LMEM), and time-resolved sex differences were evaluated via cluster-based permutation testing. LTP-like modulation was evident in early VEP components—specifically C1, P1, and P1N1 peak-to-peak amplitude indicating dynamic changes in early visual processing from 2 to 8 min post-stimulation. LMEM did not reveal any sex-specific effects in these components. However, time-course analyses identified discrete, significant sex differences in late VEP components in late VEP components at baseline (350–390 ms; p = .043) and 18 min post-modulation (388–426 ms; p = .048). Our findings demonstrate robust LTP-like modulation in early VEP components independent of sex. Subtle sex differences emerged in late, unmodulated VEP components (350–426 ms), likely reflecting variations in attention-related processing rather than plasticity per se.

神经可塑性受损是许多精神疾病的核心特征。通过脑电图测量的视觉诱发电位（vep）的长时程增强（LTP）样调制，代表了一种评估人类可塑性的有前途的方法。最近的证据表明，基于vep的可塑性存在潜在的性别差异。本研究通过量化ltp样的vep调节来研究视觉皮层加工和可塑性的性别差异。我们分析了来自61名女性（平均年龄= 26.53 ± 6.87岁）和35名男性（平均年龄= 28.77 ± 8.63岁）的96份可用记录。在10分钟视觉调制之前和之后，使用棋盘逆转刺激（20 s at 2 Hz）引发vep。在2、8、12、18、22和28 min时记录调制后vep。评估从基线到调制后的幅度变化。使用线性混合效应模型（LMEM）分析预定义VEP成分，并通过基于聚类的排列检验评估时间分辨性别差异。ltp样的调制在早期VEP成分中是明显的，特别是C1、P1和P1N1的峰对峰振幅表明在刺激后2到8 min的早期视觉加工中的动态变化。LMEM未发现这些成分有任何性别特异性的影响。然而，时间过程分析确定了基线时晚期VEP成分的离散性、显著性差异（350-390 ms; p = ）。043)和18 min后调制（388-426 ms; p = .048）。我们的研究结果表明，在早期VEP成分中存在强大的ltp样调节，与性别无关。微妙的性别差异出现在后期，未调节的VEP组件（350-426 ms），可能反映了注意相关加工的差异，而不是可塑性本身。

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引用次数: 0

Neural dynamics of moral evaluation: Integrating prosociality, fairness, and social status 道德评价的神经动力学：整合亲社会性、公平性和社会地位。

IF 2.9 3区医学 Q1 BEHAVIORAL SCIENCES

Biological Psychology

Pub Date : 2025-09-17 DOI: 10.1016/j.biopsycho.2025.109129

Jun Wu , Ru Song , Wanchen Li , Jie Liu , Fang Cui

Moral evaluation often involves balancing multiple moral principles, such as prosociality (actions benefiting others) and fairness (equitable resource distribution), yet how these principles interact under the influence of social status remains poorly understood. To address this, we combined behavioral paradigms with event-related potentials (ERPs) to explore the temporal dynamics and neural underpinnings of third-party evaluations of allocators varying in social status. Participants rated the morality and willingness to cooperate toward resource allocations differing in prosociality (high/low) and fairness (fair/unfair). Behaviorally, sensitivity to fairness was heightened under high prosociality conditions compared to low prosociality, and social status modulated cooperation intentions- fairness effects were more pronounced for high-status allocators. Neurally, the FRN differentiated fairness more strongly under high prosociality, indicating early-stage fairness monitoring modulated by context. The P3 displayed opposing effects by status: fair proposals from high-status allocators elicited larger P3 amplitudes. These findings support a dual-phase model of moral evaluation: the early FRN reflects rapid, context-dependent fairness monitoring, while late-stage P3 integrates social status information to influence cooperative decisions. Overall, this study reveals how social status shapes third-party moral judgments through distinct neural mechanisms across different temporal stages.

道德评价通常涉及平衡多重道德原则，如亲社会性（有利于他人的行为）和公平性（公平的资源分配），然而这些原则在社会地位的影响下如何相互作用仍然知之甚少。为了解决这个问题，我们将行为范式与事件相关电位（ERPs）相结合，探讨了社会地位不同的分配者的第三方评估的时间动态和神经基础。在亲社会性（高/低）和公平（公平/不公平）方面，参与者对资源分配的道德性和合作意愿进行了打分。在高亲社会性条件下，行为对公平的敏感度比低亲社会性条件下高，社会地位对合作意向-公平效应的调节在高社会地位分配者中更为明显。在神经上，高亲社会性FRN对公平的区分更强，表明早期公平监测受情境调节。P3表现出与地位相反的效应：来自地位较高的分配者的公平提议引起了更大的P3振幅。这些发现支持了道德评价的双阶段模型：早期FRN反映了快速的、情境依赖的公平监测，而后期P3整合了社会地位信息来影响合作决策。总体而言，本研究揭示了社会地位如何通过不同时间阶段的不同神经机制影响第三方道德判断。

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引用次数: 0

Smile when life is stranded: Positive feedback promotes romantic couples’ cooperation and neural synchrony 当生活陷入困境时微笑：积极的反馈促进情侣之间的合作和神经同步。

IF 2.9 3区医学 Q1 BEHAVIORAL SCIENCES

Biological Psychology

Pub Date : 2025-09-12 DOI: 10.1016/j.biopsycho.2025.109105

Yaji He , Zhijun Cheng , Xudong Wang , Zhikun Zhou , Kuilin Ying , Yan Mu , Xiaogang Wang , Yangmei Luo , Xuhai Chen

Emotional communication is crucial for maintaining the romantic relationships of couples, particularly in situations of failed cooperation. However, little is known about how expressions of happiness and anger affect the subsequent behavioural performance of couples and their neural synchrony mechanisms in the context of cooperative failure. To address this, lover dyads were asked to perform a cooperative task with a high probability of failure while viewing their partner’s happy or angry expressions as feedback. Meanwhile, neural activity was recorded via functional near-infrared spectroscopy. Results showed that happy expressions promote intraindividual emotional experience, emotional similarity, and cooperative performance more than do angry expressions, and such a facilitated effect was associated with higher interpersonal neural synchronization (INS) in the right Middle Frontal Gyrus (MFG) and lower INS at right Superior Frontal Gyrus (SFG). These findings can guide emotional communication strategies for couples in managing failures and promoting positive interactions.

情感交流对于维持夫妻之间的浪漫关系至关重要，尤其是在合作失败的情况下。然而，在合作失败的背景下，快乐和愤怒的表达如何影响夫妻随后的行为表现及其神经同步机制，我们知之甚少。为了解决这个问题，情侣二人组被要求完成一项极有可能失败的合作任务，同时将伴侣的高兴或生气的表情作为反馈。同时，通过功能近红外光谱记录神经活动。结果表明，快乐表情比愤怒表情更能促进个体内部情绪体验、情绪相似性和合作表现，且这种促进作用与右侧额叶中回（MFG）人际神经同步（INS）增强和右侧额叶上回（SFG）人际神经同步（INS）降低有关。这些发现可以指导夫妻在处理失败和促进积极互动方面的情感沟通策略。

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引用次数: 0

Distinct P300 of cognitive load during problem presentation and response evaluation in an arithmetic verification task 算术验证任务中问题呈现和反应评价过程中认知负荷的显著P300。

IF 2.9 3区医学 Q1 BEHAVIORAL SCIENCES

Biological Psychology

Pub Date : 2025-09-12 DOI: 10.1016/j.biopsycho.2025.109127

Jing-Fong Wang , Zai-Fu Yao , Tzu-Hua Wang

How does task complexity influence cognitive performance and neural dynamics, and how do individual differences shape these effects? We employed a two-stage arithmetic load verification task to investigate the impacts of increasing cognitive load on accuracy, reaction time (RT), inverse efficiency scores (IES), and neural activity indexed by P300 and frequency-band dynamics. Participants completed tasks of varying complexity (low, intermediate, and high) and were categorized as high-performing (HG) or low-performing (LG) based on task outcomes of the pilot study. Behavioral results showed that increasing task complexity reduced accuracy, slowed RT, and elevated IES. Electrophysiological analyses revealed phase-specific patterns: during the problem presentation stage, P300 amplitudes showed anterior-central dominance without cognitive load effects; HG exhibited smaller amplitudes than LG, while LG displayed decreasing frontal theta and alpha power with increasing load—indicating attentional limitations. During the response evaluation stage, P300 amplitudes exhibited a robust cognitive load effect (low > intermediate > high) and posterior dominance, but no group differences. Theta and alpha power at Cz predicted accuracy under intermediate load. Together, these findings demonstrate complementary contributions of ERP and oscillatory measures in tracking neural resource allocation and adaptability, thereby extending cognitive load theory.

任务复杂性如何影响认知表现和神经动力学，以及个体差异如何形成这些影响？采用两阶段算法负荷验证任务，研究认知负荷增加对准确性、反应时间（RT）、逆向效率评分（IES）以及P300和频带动力学指标的神经活动的影响。参与者完成了不同复杂性的任务（低、中、高），并根据初步研究的任务结果被分为高绩效（HG）或低绩效（LG）。行为学结果显示，任务复杂性的增加降低了准确率，减慢了RT，提高了IES。电生理分析揭示了阶段特异性模式：在问题呈现阶段，P300振幅表现为前中央优势，无认知负荷效应；HG的振幅比LG小，而LG的额叶θ和α功率随着负载指示注意限制的增加而降低。在反应评估阶段，P300幅值表现出较强的认知负荷效应（低>，中间>，高>）和后验优势，但无组间差异。在Cz处的θ和α功率预测了中等负荷下的精度。总之，这些发现证明了ERP和振荡测量在跟踪神经资源分配和适应性方面的互补贡献，从而扩展了认知负荷理论。

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引用次数: 0

Sweating it out: The influence of sex and emotions on human sweat production 出汗：性和情绪对人体出汗量的影响。

IF 2.9 3区医学 Q1 BEHAVIORAL SCIENCES

Biological Psychology

Pub Date : 2025-09-09 DOI: 10.1016/j.biopsycho.2025.109125

Nuno Gomes , Miguel F. Benrós , Jorge S. Martins , Gün R. Semin

Human sweat conveys a wealth of information about its donors, including their emotional state at the time of release. While extensive research has examined the communicative potential of human sweat, the mechanisms underlying emotional sweat production remain underexplored. This study employed a data-driven approach with a large sample of sweat donors (N = 334; most participants were university students) to investigate the relation between sweat production and the emotional state of males and females across three conditions – fear, happiness, and rest. Four key questions were addressed: (i) Do males produce more sweat than females across emotional conditions? (ii) Does sweat production vary as a function of emotional experience? (iii) Is sweat production associated with self-ratings of emotional experience? and (iv) Are there sex differences in these associations? Results revealed that males produced significantly more sweat than females in fear-inducing conditions, which also showed the highest overall sweat production. Contrary to prior findings, happiness-related sweat production did not exceed that of rest in either sex, a discrepancy potentially due to contextual factors. Moreover, sweat production was positively associated with reported negative emotional experience during the fear-inducing sessions, but only for males. This suggests that male, but not female, donors may have the capacity to encode emotional intensity in sweat production. These findings provide new insights into the physiological and contextual factors that shape emotional communication through sweat, with potentially important implications for future research. Additionally, the observed sex asymmetries are discussed in light of a possible evolutionary explanation.

人类的汗液传达了大量关于其供体的信息，包括他们在释放时的情绪状态。虽然广泛的研究已经研究了人类汗液的交流潜力，但情绪汗液产生的机制仍未得到充分探索。本研究采用数据驱动的方法，选取了大量的汗液供体样本（N = 334，大多数参与者是大学生），调查了男性和女性在恐惧、快乐和休息三种情况下的汗液分泌与情绪状态之间的关系。研究解决了四个关键问题：(i)在情绪状况下，男性是否比女性分泌更多的汗？（ii）出汗量是否随情绪体验的变化而变化？（iii）出汗量是否与情绪体验的自我评价有关？（iv）这些关联是否存在性别差异？结果显示，在引起恐惧的条件下，男性比女性产生更多的汗水，这也显示出最高的总出汗量。与之前的研究结果相反，无论男女，与快乐相关的出汗量都不会超过休息，这种差异可能是由于环境因素造成的。此外，在引起恐惧的过程中，出汗量与报告的负面情绪体验呈正相关，但仅限于男性。这表明男性（而非女性）捐献者可能有能力将情感强度编码为出汗量。这些发现为通过汗水塑造情感交流的生理和环境因素提供了新的见解，对未来的研究具有潜在的重要意义。此外，观察到的性别不对称在可能的进化解释的光进行了讨论。

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引用次数: 0

Beyond linear measures: Revealing hidden neural dynamics in sports and exercise cognition with non-linear EEG 超越线性测量：用非线性脑电图揭示运动和运动认知中隐藏的神经动力学。

IF 2.9 3区医学 Q1 BEHAVIORAL SCIENCES

Biological Psychology

Pub Date : 2025-09-09 DOI: 10.1016/j.biopsycho.2025.109126

Shih-Chun Kao , Wei-Kuang Liang , Chun-Hao Wang , David Moreau

Over the past fifty years, cognitive neuroscience has greatly enriched our understanding of how sport and exercise influence the human brain. Electroencephalography (EEG), with its non-invasive nature and exceptional temporal resolution, has been instrumental in uncovering the neurocognitive processes linking physical exercise and sport to cognition. While traditional linear EEG analyses have yielded valuable insights, they are limited in capturing the complex non-linear dynamics inherent in EEG signals, potentially obscuring critical aspects of brain-behavior relationships. This perspective article first reviews contemporary research using linear EEG methods to examine neural correlates as both antecedents and consequences of sport and exercise behaviors. We then discuss the non-linear nature of brain dynamics and the advantages of non-linear EEG analyses—such as multiscale entropy (MSE)—for revealing adaptive neural changes induced by physical activity. Finally, we introduce two advanced non-linear EEG techniques, cross-frequency coupling (CFC) and Holo-Hilbert Spectral Analysis (HHSA), which, though yet to be applied in sport and exercise science, hold significant promise for uncovering complex neural mechanisms overlooked by traditional linear approaches. Advocating for the integration of non-linear EEG analyses alongside conventional methods, this review aims to provide a more comprehensive understanding of the neural underpinnings of sport, exercise, and cognition, paving the way for future research in this evolving field.

在过去的50年里，认知神经科学极大地丰富了我们对运动和锻炼如何影响人类大脑的理解。脑电图（EEG）以其非侵入性和特殊的时间分辨率，在揭示体育锻炼和运动与认知之间的神经认知过程方面发挥了重要作用。虽然传统的线性脑电图分析已经产生了有价值的见解，但它们在捕捉脑电图信号中固有的复杂非线性动力学方面受到限制，潜在地模糊了大脑-行为关系的关键方面。这篇前瞻性的文章首先回顾了使用线性脑电图方法来检查运动和锻炼行为的神经相关性的当代研究。然后，我们讨论了脑动力学的非线性本质，以及非线性脑电图分析（如多尺度熵（MSE））在揭示身体活动引起的适应性神经变化方面的优势。最后，我们介绍了两种先进的非线性脑电图技术，交叉频率耦合（CFC）和Holo-Hilbert频谱分析（HHSA），这两种技术虽然尚未应用于体育和运动科学，但对于揭示传统线性方法所忽视的复杂神经机制具有重要的前景。本综述倡导将非线性脑电图分析与传统方法相结合，旨在提供对运动、锻炼和认知的神经基础的更全面的理解，为这一不断发展的领域的未来研究铺平道路。

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引用次数: 0

Exploring the effect of negative mood on working memory subprocesses: An event-related potential study 负性情绪对工作记忆子过程的影响：事件相关电位研究。

IF 2.9 3区医学 Q1 BEHAVIORAL SCIENCES

Biological Psychology

Pub Date : 2025-09-04 DOI: 10.1016/j.biopsycho.2025.109117

Qiaoling Hua , Ziyuan Li , Qiang Liu

Working memory (WM) regulates information flow through gate mechanisms, consisting of four subprocesses: gate opening, gate closing, updating, and substitution. However, their neural mechanisms remain underexplored. While emotion-cognition interactions are well studied, the effects of negative mood on these subprocesses are unclear. This study examines the neural mechanisms underlying four WM subprocesses using event-related potentials (ERPs) and explores the influence of negative mood. Thirty-seven participants completed a cue-version reference-back task after mood induction (negative or neutral) across two sessions, with behavioral and EEG data recorded. Mood changes were assessed via the Positive and Negative Affect Schedule (PANAS) before and after the experiment. A total of 32 participants were included in the final analysis. The behavioral results showed that all WM subprocess (gate opening, gate closing, updating, and substitution) costs were observed in reaction time (RT), but only substitution costs were evident in error rate (ER). Negative mood only reduced substitution costs in RT. The ERP results revealed that gate opening was activated during both the cue phase (550–1000 ms at frontal and central areas) and the probe phase (670–920 ms at central and parietal areas), whereas no gate closing costs were observed in neural activity. Updating was activated at central, parietal, and occipital areas (630–1000 ms post-probe), and substitution was linked to parietal area (710–980 ms post-probe). Negative mood specifically reduced gate opening costs during the probe phase. This study confirms the existence of four WM subprocesses, and suggests that negative mood influences gate opening and substitution subprocesses.

工作记忆（WM）通过门机制调节信息流，门机制包括四个子过程：门打开、门关闭、门更新和替代。然而，它们的神经机制仍未被充分探索。虽然情绪与认知的相互作用已经得到了很好的研究，但消极情绪对这些子过程的影响尚不清楚。本研究利用事件相关电位（ERPs）分析其神经机制，并探讨负面情绪的影响。37名参与者在情绪诱导（消极或中性）后完成了一个线索版本的参考反馈任务，并记录了行为和脑电图数据。在实验前后通过积极和消极情绪量表（PANAS）评估情绪变化。共有32名参与者被纳入最终分析。行为学结果表明，所有WM子过程（门打开、门关闭、门更新和替代）的成本都体现在反应时间（RT）上，而只有替代成本体现在错误率（ER）上。消极情绪只会降低替代成本。ERP结果显示，在提示阶段（额叶和中央区域550-1000毫秒）和探测阶段（中央和顶叶区域670-920毫秒），门打开都被激活，而在神经活动中没有观察到门关闭成本。更新激活于中央、顶叶和枕叶区域（探测后630-1000 ms），替代激活于顶叶区域（探测后710-980 ms）。消极情绪特别降低了探测阶段的门开启成本。本研究证实了四个WM子过程的存在，并提示负性情绪影响门开启子过程和替代子过程。

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引用次数: 0

The impact of scene inversion on early scene-selective activity 场景反转对早期场景选择活动的影响。

IF 2.9 3区医学 Q1 BEHAVIORAL SCIENCES

Biological Psychology

Pub Date : 2025-09-02 DOI: 10.1016/j.biopsycho.2025.109115

Hamada Al Zoubi , Assaf Harel

Category-selectivity is a ubiquitous property of high-level visual cortex manifested in distinct cortical responses to faces, objects, and scenes. These signatures emerge early during visual processing, with each category sensitive to specific types of visual information at different time points. However, it is still not clear what information is extracted during early scene-selective processing, as scenes are rich, complex, and multidimensional stimuli. Here, we tested the hypothesis that early scene-selective activity involves global processing by examining the impact that scene inversion has on visually-evoked Event-Related Potentials (ERPs), particularly the scene-selective P2 component (peaking around 220 ms post-stimulus onset). We recorded ERPs from participants as they were viewing images of faces, objects, and scenes. Images were presented in both upright and inverted orientations and spanned a wide range of category dimensions and properties, preventing the possibility of salient image properties influencing the results. Replicating previous studies, P2 was found to be the first scene-selective component, with higher amplitude in response to scenes compared to faces and objects. Inversion had a clear effect on P2, with a decrease in its amplitude to inverted scenes. No scene inversion effects were observed on P1 and N1, the earlier visually-evoked components. Conversely, face inversion impacted all three components, while inverting objects had no effect on any of the three components. The current findings support the notion that P2 indexes scene-selective processing and suggest that global scene information is extracted at the P2 time window

类别选择性是高级视觉皮层普遍存在的特性，表现在皮层对面孔、物体和场景的不同反应中。这些特征出现在视觉处理的早期，每一类在不同的时间点对特定类型的视觉信息敏感。然而，由于场景是丰富、复杂和多维的刺激，目前尚不清楚在早期场景选择处理中提取了哪些信息。在这里，我们通过检查场景反转对视觉诱发的事件相关电位（ERPs）的影响，特别是场景选择性P2成分（在刺激开始后220毫秒左右达到峰值），验证了早期场景选择性活动涉及全局加工的假设。我们记录了参与者在观看人脸、物体和场景图像时的erp。图像以直立和倒置的方向呈现，跨越了广泛的类别维度和属性，防止了显著图像属性影响结果的可能性。重复之前的研究，发现P2是第一个场景选择成分，与面孔和物体相比，它对场景的反应幅度更高。反转对P2有明显的影响，其振幅对反转场景有所降低。在P1和N1这两个较早的视觉诱发成分上未观察到场景反转效应。相反，人脸反转对所有三个分量都有影响，而物体反转对任何三个分量都没有影响。目前的研究结果支持了P2索引场景选择性处理的概念，并表明全局场景信息是在P2时间窗口提取的。

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引用次数: 0

Neural basis linking self-control with achievement motivation: Functional connectivity between left dlPFC and right inferior temporal gyrus 自我控制与成就动机的神经基础：左左前额叶皮层与右颞下回的功能连接

IF 2.9 3区医学 Q1 BEHAVIORAL SCIENCES

Biological Psychology

Pub Date : 2025-09-01 DOI: 10.1016/j.biopsycho.2025.109114

Jiajia Yang , Ting Xu , Tingyong Feng

Achievement motivation serves as a fundamental psychological construct that underlies and predicts a wide range of human adaptive behaviors, including goal setting and performance across academic and social domains. Although prior research has shown that self-control is associated with achievement motivation, it remains unclear which neural substrates underlie the association between self-control and achievement motivation. To address this issue, we employed resting-state functional connectivity (RSFC) and mediation analysis methods to investigate the neural basis of the relationship between self-control and achievement motivation in the discovery (N = 685) and replication sample (N = 210). In discovery sample, we found a significant positive correlation between self-control and achievement motivation. On the neural level, the FC between the left dorsolateral prefrontal cortex (dlPFC) and the right superior temporal gyrus (STG), right inferior temporal gyrus (ITG), and left middle temporal gyrus (MTG) were negatively correlated with self-control. Furthermore, the mediation analysis demonstrated that self-control fully mediated the relationship between the FC between left dlPFC and the right ITG and achievement motivation. Repeating analyses in the independent replication sample also supported the robustness of the results obtained in the discovery study. Together these findings indicate that the FC between left dlPFC and right ITG may represent a key neural pathway through which self-control influences achievement motivation, providing new insights into their association from a neural perspective.

成就动机是一种基本的心理结构，它预示着人类广泛的适应性行为，包括目标设定和在学术和社会领域的表现。虽然先前的研究表明自我控制与成就动机有关，但目前尚不清楚是哪种神经基质导致了自我控制与成就动机之间的联系。为了解决这一问题，我们采用静息状态功能连接（RSFC）和中介分析方法，在发现样本（N = 685）和复制样本（N = 210）中探讨自我控制与成就动机关系的神经基础。在发现样本中，我们发现自我控制与成就动机之间存在显著的正相关。在神经水平上，左侧背外侧前额叶皮层（dlPFC）与右侧颞上回（STG）、右侧颞下回（ITG）和左侧颞中回（MTG）之间的FC与自我控制呈负相关。此外，中介分析表明，自我控制完全中介了左侧dlPFC与右侧ITG之间的FC与成就动机之间的关系。在独立的复制样本中重复分析也支持了发现研究中获得的结果的稳健性。综上所述，这些研究结果表明，左侧dlPFC和右侧ITG之间的FC可能代表了自我控制影响成就动机的一条关键神经通路，从神经学的角度为它们之间的联系提供了新的见解。

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引用次数: 0

Independent effects of working memory loads and facial expressions on event-related potential (ERP) responses: Evidence from mass univariate analysis 工作记忆负荷和面部表情对事件相关电位（ERP）反应的独立影响：来自大量单变量分析的证据

IF 2.9 3区医学 Q1 BEHAVIORAL SCIENCES

Biological Psychology

Pub Date : 2025-09-01 DOI: 10.1016/j.biopsycho.2025.109116

Huiyan Lin , Jiafeng Liang

Previous studies have investigated whether event-related potential (ERP) responses to negative and positive facial expressions are modulated by perceptual and working memory loads of face-irrelevant tasks, but results have been mixed. These studies typically employed traditional analysis methods that focus on a limited number of electrodes and timepoints, which increases the risk of statistical errors. Moreover, no studies have investigated these issues for emotionally ambiguous facial expressions. Therefore, the current study aimed to investigate whether working memory loads influence ERP effects of positive, negative and importantly, emotionally ambiguous (e.g., surprised) facial expressions by using robust Mass Univariate Analysis (MUA). To address these issues, thirty-three participants were presented with angry, happy, surprised or neutral faces. Participants were required to memorize a letter (low working memory loads) or 5 letters (high loads) before face presentations and to recognize them afterwards. ERP results showed that working memory loads and facial expressions independently affected ERP responses, with no significant interaction. Working memory loads influenced ERP responses starting after the P100 peak. Regarding the effect of facial expressions, surprised facial expressions generally weakened late positive potential (LPP) responses compared to other facial expressions, and happy facial expressions weakened the responses at early time ranges, while angry facial expressions enhanced LPP responses at distinct electrode sites depending on the comparison. These findings underscore the value of employing MUA for comprehensive ERP analysis in face processing research.

先前的研究已经调查了事件相关电位（ERP）对消极和积极面部表情的反应是否受到与面部无关任务的知觉和工作记忆负荷的调节，但结果好坏参半。这些研究通常采用传统的分析方法，集中在有限数量的电极和时间点上，这增加了统计误差的风险。此外，还没有研究调查过情绪模糊的面部表情的这些问题。因此，本研究旨在通过稳健的质量单变量分析（MUA）来研究工作记忆负荷是否会影响积极、消极和重要的情绪模糊（如惊讶）面部表情的ERP效应。为了解决这些问题，研究人员向33名参与者展示了愤怒、快乐、惊讶和中性的面孔。参与者被要求在面部展示之前记住一个字母（低工作记忆负荷）或5个字母（高工作记忆负荷），并在之后识别它们。结果显示，工作记忆负荷和面部表情对ERP反应有独立影响，但无显著交互作用。工作记忆负荷对ERP反应的影响始于P100峰值后。在面部表情的影响方面，惊讶的面部表情与其他面部表情相比，普遍减弱了晚期正电位（LPP）反应，快乐的面部表情减弱了早期时间范围的反应，而愤怒的面部表情则增强了不同电极部位的LPP反应。这些研究结果强调了在人脸加工研究中应用MUA进行综合ERP分析的价值。

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引用次数: 0