Abstract：
:Our purpose was to investigate the cortical information processing of autobiographical fact violation (AFV) in self-referential questions. We expected that AFV in a self-referential question would evoke a characteristic pattern of neural synchrony and event-related potentials (ERPs). Averaged ERP and event-related synchronization in the gamma band were analyzed to observe differences between the processing of questions with and without AFV. Significant differences in ERP were found in the posterior area at 290-435ms (N400) and in the frontal area at 520-800ms (late positive component, LPC). Interestingly, differentiation of the gamma-band synchrony was found in two temporal periods, (255-365 and 525-585ms), which are comparable to the periods of significant ERP differences. The two periods are interpreted to be devoted to the processing of semantic and self-referential information, respectively. These findings may imply that the decision-making involved in answering self-referential questions is enabled by the integration of semantic and autobiographical information processing.
journal_name
Brain Resjournal_title
Brain researchauthors
Choi JW,Cha KS,Jung KY,Kim KHdoi
10.1016/j.brainres.2017.02.013subject
Has Abstractpub_date
2017-05-01 00:00:00pages
39-45eissn
0006-8993issn
1872-6240pii
S0006-8993(17)30075-6journal_volume
1662pub_type
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