Abstract：
:Post-traumatic stress disorder (PTSD) is characterized by avoidance, emotional numbing, increased arousal and hypervigilance for threat following a trauma. Thirty-three veterans (19 with PTSD, 14 without PTSD) who had experienced combat trauma while on deployment in Iraq and/or Afghanistan completed an emotional faces matching task while electroencephalography was recorded. Vertex positive potentials (VPPs) elicited by happy, angry and fearful faces were smaller in veterans with versus without PTSD. In addition, veterans with PTSD exhibited smaller late positive potentials (LPPs) to angry faces and greater intrusive symptoms predicted smaller LPPs to fearful faces in the PTSD group. Veterans with PTSD were also less accurate at identifying angry faces, and accuracy decreased in the PTSD group as hyperarousal symptoms increased. These findings show reduced early processing of emotional faces, irrespective of valence, and blunted prolonged processing of social signals of threat in conjunction with impaired perception for angry faces in PTSD.
journal_name
Biol Psycholjournal_title
Biological psychologyauthors
MacNamara A,Post D,Kennedy AE,Rabinak CA,Phan KLdoi
10.1016/j.biopsycho.2013.08.009subject
Has Abstractpub_date
2013-10-01 00:00:00pages
441-9issue
2eissn
0301-0511issn
1873-6246pii
S0301-0511(13)00192-0journal_volume
94pub_type
杂志文章abstract：:The purposes of this exploratory study were: (1) to describe a 2-h segment of the early-morning salivary cortisol levels of morning (M) and evening (E) types of healthy, day-active adults on one morning; and (2) to compare selected demographic and sleep characteristics. The sample consisted of 20 subjects, aged 23-39 ...
journal_title：Biological psychology
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更新日期：1991-10-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
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更新日期：2008-05-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
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更新日期：2019-09-01 00:00:00
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journal_title：Biological psychology
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更新日期：2018-04-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
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abstract：:In the first experiment, somatosensory event-related potentials (SERPs) were recorded to tactile pulses and vibration bursts applied to the left middle finger in trains of 4-8 stimuli with 1 s intervals. In addition to the negative N140 deflection, also the positive P50, P100 and P300 waves attenuated in amplitude wit...
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journal_title：Biological psychology
pub_type： 杂志文章
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journal_title：Biological psychology
pub_type： 杂志文章
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更新日期：2006-04-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/j.biopsycho.2013.07.006
更新日期：2013-10-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/j.biopsycho.2013.09.006
更新日期：2013-12-01 00:00:00
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pub_type： 杂志文章
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更新日期：2003-02-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/j.biopsycho.2013.02.001
更新日期：2013-04-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/j.biopsycho.2014.09.013
更新日期：2014-12-01 00:00:00
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journal_title：Biological psychology
pub_type： 临床试验,杂志文章
doi：10.1016/j.biopsycho.2016.08.003
更新日期：2016-10-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/s0301-0511(96)05228-3
更新日期：1997-03-21 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/j.biopsycho.2011.02.011
更新日期：2011-04-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/0301-0511(86)90077-3
更新日期：1986-10-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/0301-0511(83)90051-0
更新日期：1983-02-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.biopsycho.2016.09.011
更新日期：2016-10-01 00:00:00
abstract：OBJECTIVE:Studies have linked self-reported discrimination to telomere attrition, a biological marker of accelerated cellular aging. However, it is unknown whether intersections between social categories-race, socioeconomic status (SES), sex, and age-influence the association of varying forms of discrimination with tel...
journal_title：Biological psychology
pub_type： 杂志文章
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更新日期：2019-02-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/j.biopsycho.2010.03.008
更新日期：2010-07-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/j.biopsycho.2010.01.004
更新日期：2010-03-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/j.biopsycho.2012.05.006
更新日期：2012-09-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/j.biopsycho.2012.07.005
更新日期：2012-10-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/j.biopsycho.2010.06.005
更新日期：2010-09-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
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更新日期：2018-10-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/0301-0511(89)90001-x
更新日期：1989-06-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/j.biopsycho.2019.02.010
更新日期：2019-04-01 00:00:00
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journal_title：Biological psychology
pub_type： 历史文章,杂志文章,评审
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更新日期：2010-07-01 00:00:00
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journal_title：Biological psychology
pub_type： 杂志文章
doi：10.1016/j.biopsycho.2018.05.001
更新日期：2018-07-01 00:00:00
