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2016 ; 11
(4
): e0153400
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Neuroticism Delays Detection of Facial Expressions
#MMPMID27073904
Sawada R
; Sato W
; Uono S
; Kochiyama T
; Kubota Y
; Yoshimura S
; Toichi M
PLoS One
2016[]; 11
(4
): e0153400
PMID27073904
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The rapid detection of emotional signals from facial expressions is fundamental
for human social interaction. The personality factor of neuroticism modulates the
processing of various types of emotional facial expressions; however, its effect
on the detection of emotional facial expressions remains unclear. In this study,
participants with high- and low-neuroticism scores performed a visual search task
to detect normal expressions of anger and happiness, and their anti-expressions
within a crowd of neutral expressions. Anti-expressions contained an amount of
visual changes equivalent to those found in normal expressions compared to
neutral expressions, but they were usually recognized as neutral expressions.
Subjective emotional ratings in response to each facial expression stimulus were
also obtained. Participants with high-neuroticism showed an overall delay in the
detection of target facial expressions compared to participants with
low-neuroticism. Additionally, the high-neuroticism group showed higher levels of
arousal to facial expressions compared to the low-neuroticism group. These data
suggest that neuroticism modulates the detection of emotional facial expressions
in healthy participants; high levels of neuroticism delay overall detection of
facial expressions and enhance emotional arousal in response to facial
expressions.
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