Open AccessThe relationship between fearful facial expressions valences and resting-state SW/FW ratio
Author(s) -
Seyed Mohammad Mahdi Moshirian Farahi,
Seyedeh Maryam Moshirian Farahi,
Mohammad Javad Asghari Ebrahimabad,
Sayyed Mohsen Fatemi,
Shamim Razaghi Kashani
Publication year - 2020
Publication title -
neuropsychological trends
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.198
H-Index - 7
eISSN - 1970-321X
pISSN - 1970-3201
DOI - 10.7358/neur-2020-028-mosh
Subject(s) - valence (chemistry) , psychology , audiology , facial expression , emotional valence , correlation , developmental psychology , cognition , neuroscience , communication , mathematics , chemistry , medicine , geometry , organic chemistry
Fearful facial expressions are considered dangerous and may lead to potential punishment and may be associated with behavioral inhibitions. In the present study, we examined the possible associations between the resting-state slow-wave and fast-wave ratio (SW/FW) and the valence of fearful faces. Previous studies have shown the role of SW/FW in approach-driven motivation and reward-seeking behavior. The resting-state EEG of 75 high school and undergraduate students were recorded while they were performing the valence judgment task. The results indicated a positive correlation between the global score of SW/FW and the valence of fearful faces. Moreover, multiple regression analyses indicated SW/FW in the left medial frontal as the best predictor of the valence of fearful faces. The present study confirms the previous findings underlying SW/FW mechanisms in the motivational system, including a prediction of increased SW/FW in elevated reward sensitivity and decreased SW/FW in elevated punishment sensitivity.