True and False memory: in EEG pilot study

The present study aims to discriminate true and false memory by examining the EEG activity in a setting as applied as possible to the context of credibility assessment. To achieve this, 19 participants saw a short film about a robbery and had to answer 35 yes-no-questions, 25 of them contained misleading information. In order to distort the participants' memories suggestive techniques were implemented, e.g. repeated questioning. The comparison of event-related potentials (ERP) of true and false memories reveals a parieto-occipital effect between 350 and 500 ms. This effect is consistent with the parietal old/new effect, which is associated with recollection. At the same time, this finding is in agreement with research associating a transient negativity (N400) with processing of semantic incongruent information.