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Imaging the Unseen: Charting Amygdalar Tau’s Link to Affective Symptoms in Preclinical Alzheimer’s Disease 成像看不见的:绘制杏仁核Tau与临床前阿尔茨海默病情感症状的联系。
IF 5.7 2区 医学 Q1 NEUROSCIENCES Pub Date : 2024-12-01 DOI: 10.1016/j.bpsc.2024.10.003
Yilamujiang Abuduaini , Yi Pu , Wei Chen , Xiang-Zhen Kong
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引用次数: 0
Torture as a Trauma of Disconnection: Neuroplastic Alterations in Survivors of Torture 作为分离创伤的酷刑:酷刑幸存者的神经可塑性改变。
IF 5.7 2区 医学 Q1 NEUROSCIENCES Pub Date : 2024-12-01 DOI: 10.1016/j.bpsc.2024.10.006
Negar Fani
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引用次数: 0
Acknowledgments
IF 5.7 2区 医学 Q1 NEUROSCIENCES Pub Date : 2024-12-01 DOI: 10.1016/j.bpsc.2024.10.009
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引用次数: 0
Medial Amygdalar Tau Is Associated With Mood Symptoms in Preclinical Alzheimer’s Disease 杏仁内侧 tau 与临床前阿尔茨海默病的情绪症状有关。
IF 5.7 2区 医学 Q1 NEUROSCIENCES Pub Date : 2024-12-01 DOI: 10.1016/j.bpsc.2024.07.012
Joyce S. Li , Samantha M. Tun , Bronte Ficek-Tani , Wanwan Xu , Selena Wang , Corey L. Horien , Takuya Toyonaga , Shreya S. Nuli , Caroline J. Zeiss , Albert R. Powers , Yize Zhao , Elizabeth C. Mormino , Carolyn A. Fredericks

Background

While the amygdala receives early tau deposition in Alzheimer’s disease (AD) and is involved in social and emotional processing, the relationship between amygdalar tau and early neuropsychiatric symptoms in AD is unknown. We sought to determine whether focal tau binding in the amygdala and abnormal amygdalar connectivity were detectable in a preclinical AD cohort and identify relationships between these and self-reported mood symptoms.

Methods

We examined 598 individuals (347 amyloid positive [58% female], 251 amyloid negative [62% female] subset in tau positron emission tomography and functional magnetic resonance imaging cohorts) from the A4 (Anti-Amyloid Treatment in Asymptomatic AD) Study. In the tau positron emission tomography cohort, we used amygdalar segmentations to examine representative nuclei from 3 functional divisions of the amygdala. We analyzed between-group differences in division-specific tau binding in the amygdala in preclinical AD. We conducted seed-based functional connectivity analyses from each division in the functional magnetic resonance imaging cohort. Finally, we conducted exploratory post hoc correlation analyses between neuroimaging biomarkers of interest and anxiety and depression scores.

Results

Amyloid-positive individuals demonstrated increased tau binding in the medial and lateral amygdala, and tau binding in these regions was associated with mood symptoms. Across amygdalar divisions, amyloid-positive individuals had relatively higher regional connectivity from the amygdala to other temporal regions, the insula, and the orbitofrontal cortex, but medial amygdala to retrosplenial cortex connectivity was lower. Medial amygdala to retrosplenial connectivity was negatively associated with anxiety symptoms, as was retrosplenial tau.

Conclusions

Our findings suggest that preclinical tau deposition in the amygdala and associated changes in functional connectivity may be related to early mood symptoms in AD.
背景:阿尔茨海默病(AD)患者的杏仁核早期会出现tau沉积,并参与社交和情感处理,但杏仁核tau与AD早期神经精神症状之间的关系尚不清楚。我们试图确定在临床前阿兹海默症队列中是否能检测到杏仁核中的局灶性tau结合和异常的杏仁核连接,并确定这些与自我报告的情绪症状之间的关系:我们对A4研究中的598人(淀粉样蛋白阳性者347人(58%为女性),淀粉样蛋白阴性者251人(62%为女性);分为tau PET队列和fMRI队列)进行了研究。在 tau PET 队列中,我们使用杏仁核分割来检查杏仁核三个功能分区的代表性核团。我们分析了临床前AD患者杏仁核分部特异性tau结合的组间差异。我们对 fMRI 队列中的每个分区进行了基于种子的功能连接分析。最后,我们对相关神经影像生物标志物与焦虑和抑郁评分进行了探索性事后相关分析:结果:淀粉样蛋白阳性者杏仁核内侧和外侧的 tau 结合增加,这些区域的 tau 结合与情绪症状相关。在杏仁核各分区中,淀粉样蛋白阳性者杏仁核与其他颞区、脑岛和眶额皮层的区域连接性相对较高,但杏仁核内侧与后脾皮层的连接性较低。杏仁核内侧到后脾的连通性与焦虑症状呈负相关,后脾tau也与焦虑症状呈负相关:我们的研究结果表明,杏仁核中临床前tau沉积和相关功能连接的变化可能与AD患者的早期情绪症状有关。
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引用次数: 0
Subscribers' Page
IF 5.7 2区 医学 Q1 NEUROSCIENCES Pub Date : 2024-12-01 DOI: 10.1016/S2451-9022(24)00319-7
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引用次数: 0
Guide for Authors
IF 5.7 2区 医学 Q1 NEUROSCIENCES Pub Date : 2024-12-01 DOI: 10.1016/S2451-9022(24)00322-7
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引用次数: 0
Resolving Uncertainties in a Social World 解决社会世界中的不确定性
IF 5.7 2区 医学 Q1 NEUROSCIENCES Pub Date : 2024-11-01 DOI: 10.1016/j.bpsc.2024.09.005
Joseph M. Barnby
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引用次数: 0
Neurophysiological Pathways of Unconscious Emotion Processing in Depression: Insights From a Simultaneous Electroencephalography–Functional Magnetic Resonance Imaging Measurement 抑郁症患者无意识情绪处理的神经生理学途径:脑电图-核磁共振成像同步测量的启示。
IF 5.7 2区 医学 Q1 NEUROSCIENCES Pub Date : 2024-11-01 DOI: 10.1016/j.bpsc.2024.07.005
Julia Schräder , Lennard Herzberg , Han-Gue Jo , Lucia Hernandez-Pena , Julia Koch , Ute Habel , Lisa Wagels

Background

Major depressive disorder (MDD) is characterized by strong emotional dysregulation. Mechanisms driving the negative affect in depression may be fast processes existing on an unconscious level.

Methods

A priming task was conducted using simultaneous electroencephalography–functional magnetic resonance imaging measurement involving presentation of facial expressions (happy, sad, and neutral) to examine the neurophysiological pathway of biased unconscious emotion processing in MDD. Priming prior to a target emotion created unconscious (16.7-ms primer) and conscious (150-ms primer) trials. A large sample (N = 126) was recruited, containing healthy control participants (n = 66; 37 women) and participants with MDD (n = 60; 31 women).

Results

The healthy control group showed a shorter reaction time in happy but not in sad or neutral trials compared with the MDD group. N170 amplitudes were lower in trials with unconscious than conscious primer presentation. N170 amplitudes correlated with cortical (right fusiform gyrus, right middle temporal gyrus, right inferior temporal gyrus, left supplementary motor area, right middle frontal gyrus) and subcortical brain regions (right amygdala). The strength of N170 and brain activity correlation increased when the stimulus was consciously presented. Presented emotions did not affect the correlation of N170 values and brain activity.

Conclusions

Our findings show that MDD may exhibit biased emotion regulation abilities at a behavioral and neurophysiological level. Face-sensitive event-related potentials demonstrate a correlation with heightened brain activity in regions associated with both face recognition (fusiform gyrus) and emotion processing (amygdala). These findings are evident in both MDD and healthy control groups, with lower effect sizes in the MDD group indicating reduced emotion recognition and processing abilities.
背景:重度抑郁障碍(MDD)的特点是强烈的情绪失调。驱动抑郁症负面情绪的机制可能是存在于无意识层面的快速过程:方法:通过同时测量脑电图-核磁共振成像(EEG-FMRI)和面部表情(快乐、悲伤、中性)来进行引物任务,以研究 MDD 中偏向无意识情绪处理的神经生理学途径。在目标情绪之前的引物会产生无意识(16.7 毫秒引物)和有意识(150 毫秒引物)试验。研究人员招募了一个 N = 126 的大样本,其中包括健康对照组(HC;n = 66;37 名女性)和 MDD(n = 60;31 名女性):结果:与 MDD 相比,HC 在快乐试验中的反应时间较短,但在悲伤或中性试验中的反应时间较短。在无意识引物呈现的试验中,N170振幅低于有意识引物呈现的试验。N170振幅与皮层(右侧纺锤形回(FFG)、右侧颞中回、右侧颞下回、左侧辅助运动区、右侧额中回)和皮层下脑区(右侧杏仁核)相关。当有意识地呈现刺激时,N170 和大脑活动相关性的强度会增加。呈现的情绪并不影响N170值与大脑活动的相关性:我们的研究结果表明,MDD可能在行为和神经生理学水平上表现出有偏差的情绪调节能力。对人脸敏感的事件相关电位显示,与人脸识别(FFG)和情绪处理(杏仁核)相关区域的大脑活动增强具有相关性。这些发现在 MDD 和 HC 中都很明显,MDD 的效应大小较低,表明情绪识别和处理能力下降。
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引用次数: 0
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IF 5.7 2区 医学 Q1 NEUROSCIENCES Pub Date : 2024-11-01 DOI: 10.1016/S2451-9022(24)00287-8
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Cognitive Profiles in Treatment-Resistant Late-Life Depression and Their Impact on Treatment Outcomes 难治性晚期抑郁症患者的认知特征及其对治疗结果的影响》(Cognitive Profiles in Treatment-Ristant Late-Life Depression and their Impact on Treatment Outcomes.
IF 5.7 2区 医学 Q1 NEUROSCIENCES Pub Date : 2024-11-01 DOI: 10.1016/j.bpsc.2024.07.009
Katharina Göke , Shawn M. McClintock , Linda Mah , Tarek K. Rajji , Hyewon H. Lee , Sean M. Nestor , Jonathan Downar , Yoshihiro Noda , Zafiris J. Daskalakis , Benoit H. Mulsant , Daniel M. Blumberger

Background

Late-life depression (LLD) is associated with cognitive impairment, but substantial heterogeneity exists among patients. Data on the extent of cognitive impairments are inconclusive, particularly in patients with treatment-resistant depression (TRD). We investigated the cognitive profiles of patients with treatment-resistant versus nonresistant LLD and aimed to identify distinct cognitive subgroups. We also examined whether cognitive subgroups responded differentially to treatment with bilateral repetitive transcranial magnetic stimulation (rTMS).

Methods

A total of 165 patients with LLD were divided into treatment-resistant and nonresistant groups and compared with healthy control participants on measures of executive function, information processing speed, verbal learning, and memory. Cluster analysis identified subgroups based on cognitive scores. Demographic and clinical variables, as well as outcomes with bilateral rTMS, were compared between cognitive subgroups.

Results

Patients with LLD, particularly TRD, exhibited significantly worse cognitive performance than healthy controls. A 3-cluster solution was found, including cognitively intact (n = 89), cognitively diminished (n = 29), and impaired memory (n = 47) subgroups. Both the cognitively diminished and impaired memory subgroups had more anxiety symptoms and a higher proportion of patients with TRD than the cognitively intact group, although the latter difference did not survive multiple comparison correction. No significant differences were observed in outcomes to rTMS treatment.

Conclusions

Patients with LLD exhibited impairments across cognitive domains, which were more pronounced in TRD. Three cognitive subgroups responded similarly to rTMS treatment, indicating its effectiveness across cognitive profiles, especially when medications are not tolerated. Future research should examine the relationships among cognitive subgroups, cognitive decline, and neurodegeneration.
背景:晚期抑郁症(LLD)与认知障碍有关,但患者之间存在很大的异质性。有关认知障碍程度的数据尚无定论,尤其是在耐药性抑郁症(TRD)患者中。我们研究了耐药性 LLD 患者与非耐药性 LLD 患者的认知概况,旨在确定不同的认知亚群。此外,我们还研究了认知亚组是否对双侧重复经颅磁刺激(rTMS)治疗有不同的反应。方法:165 名 LLD 患者被分为治疗耐受组和非耐受组,并与健康对照组(HC)在执行功能、信息处理速度、言语学习和记忆方面进行了比较。聚类分析根据认知评分确定了亚组。对认知亚组之间的人口统计学和临床变量以及双侧经颅磁刺激的结果进行了比较:结果:LLD患者,尤其是TRD患者的认知表现明显差于HC患者。研究发现了一种三群组解决方案,包括 "认知完整"(89 人)、"认知减退"(29 人)和 "记忆受损"(47 人)亚群组。与 "认知功能完整 "组相比,"认知功能减退 "和 "记忆力受损 "亚组的焦虑症状更多,TRD患者的比例更高,但后者未能通过多重比较校正。经颅磁刺激治疗的结果无明显差异:结论:LLD患者在各个认知领域都存在障碍,这在TRD患者中更为明显。三个已确定的认知亚组对经颅磁刺激治疗的反应相似,这表明经颅磁刺激治疗对各种认知状况都有效,尤其是在不能耐受药物治疗的情况下。未来的研究应探讨认知亚组、认知功能衰退和神经变性之间的关系。
{"title":"Cognitive Profiles in Treatment-Resistant Late-Life Depression and Their Impact on Treatment Outcomes","authors":"Katharina Göke ,&nbsp;Shawn M. McClintock ,&nbsp;Linda Mah ,&nbsp;Tarek K. Rajji ,&nbsp;Hyewon H. Lee ,&nbsp;Sean M. Nestor ,&nbsp;Jonathan Downar ,&nbsp;Yoshihiro Noda ,&nbsp;Zafiris J. Daskalakis ,&nbsp;Benoit H. Mulsant ,&nbsp;Daniel M. Blumberger","doi":"10.1016/j.bpsc.2024.07.009","DOIUrl":"10.1016/j.bpsc.2024.07.009","url":null,"abstract":"<div><h3>Background</h3><div>Late-life depression (LLD) is associated with cognitive impairment, but substantial heterogeneity exists among patients. Data on the extent of cognitive impairments are inconclusive, particularly in patients with treatment-resistant depression (TRD). We investigated the cognitive profiles of patients with treatment-resistant versus nonresistant LLD and aimed to identify distinct cognitive subgroups. We also examined whether cognitive subgroups responded differentially to treatment with bilateral repetitive transcranial magnetic stimulation (rTMS).</div></div><div><h3>Methods</h3><div>A total of 165 patients with LLD were divided into treatment-resistant and nonresistant groups and compared with healthy control participants on measures of executive function, information processing speed, verbal learning, and memory. Cluster analysis identified subgroups based on cognitive scores. Demographic and clinical variables, as well as outcomes with bilateral rTMS, were compared between cognitive subgroups.</div></div><div><h3>Results</h3><div>Patients with LLD, particularly TRD, exhibited significantly worse cognitive performance than healthy controls. A 3-cluster solution was found, including cognitively intact (<em>n</em> = 89), cognitively diminished (<em>n</em> = 29), and impaired memory (<em>n</em> = 47) subgroups. Both the cognitively diminished and impaired memory subgroups had more anxiety symptoms and a higher proportion of patients with TRD than the cognitively intact group, although the latter difference did not survive multiple comparison correction. No significant differences were observed in outcomes to rTMS treatment.</div></div><div><h3>Conclusions</h3><div>Patients with LLD exhibited impairments across cognitive domains, which were more pronounced in TRD. Three cognitive subgroups responded similarly to rTMS treatment, indicating its effectiveness across cognitive profiles, especially when medications are not tolerated. Future research should examine the relationships among cognitive subgroups, cognitive decline, and neurodegeneration.</div></div>","PeriodicalId":54231,"journal":{"name":"Biological Psychiatry-Cognitive Neuroscience and Neuroimaging","volume":"9 11","pages":"Pages 1199-1210"},"PeriodicalIF":5.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141763218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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Biological Psychiatry-Cognitive Neuroscience and Neuroimaging
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