Abstract:
:The present study introduced a novel variant of the concealed information test (CIT), called the feedback-CIT. By providing participants with feedbacks regarding their memory concealment performance during the CIT, we investigated the feedback-related neural activity underlying memory concealment. Participants acquired crime-relevant memories via enacting a lab crime, and were tested with the feedback-CIT while EEGs were recorded. We found that probes (e.g., crime-relevant memories) elicited larger recognition-P300s than irrelevants among guilty participants. Moreover, feedback-related negativity (FRN) and feedback-P300 could also discriminate probes from irrelevants among guilty participants. Both recognition- and feedback-ERPs were highly effective in distinguishing between guilty and innocent participants (recognition-P300: AUC=.73; FRN: AUC=.95; feedback-P300: AUC=.97). This study sheds new light on brain-based memory detection, such that feedback-related neural signals can be employed to detect concealed memories.
journal_name
Biol Psycholjournal_title
Biological psychologyauthors
Sai L,Lin X,Rosenfeld JP,Sang B,Hu X,Fu Gdoi
10.1016/j.biopsycho.2015.11.011subject
Has Abstractpub_date
2016-02-01 00:00:00pages
13-22eissn
0301-0511issn
1873-6246pii
S0301-0511(15)30085-5journal_volume
114pub_type
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