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Abstract:
Two event-related potential (ERP) experiments investigated
the role of recognition memory in source-monitoring. In a previous
investigation of source-monitoring, we found that source judgments
did not elicit a left parietal old/new effect even though it has
been reported in many other recognition memory investigations and
one source memory investigation. In order to reconcile this
difference, we manipulated the type of memory test performed before
a 3 alternative forced choice (3-AFC) source test. Subjects in the
first experiment completed a 2-AFC source test initially and the
results replicated our original findings (i.e., no left parietal
old/new effect). When people engaged in a recognition memory test
before the source test in Experiment 2, the left parietal old/new
effect appeared in the source-monitoring ERP data. Taken together,
these two experiments provide evidence that (a) source-monitoring
processes could be distinct from recognition memory processes and
(b) recognition will play a role in source-monitoring when subjects
have exposure to recognition memory procedures. These results
further indicate that the left parietal old/new effect in
source-monitoring may arise from particular retrieval
strategies.
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