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Memory for drawings in locations: Spatial source memory and event‐related potentials
Author(s) -
Petten Cyma,
Senkfor Ava J.,
Newberg Wendy M.
Publication year - 2000
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/1469-8986.3740551
Subject(s) - psychology , recognition memory , line drawings , cognitive psychology , scalp , stimulus (psychology) , event related potential , task (project management) , prefrontal cortex , electroencephalography , cognition , neuroscience , medicine , management , engineering drawing , engineering , economics , anatomy
Event‐related potentials (ERPs) were recorded during recognition tasks for line drawings (items) or for both drawings and their spatial locations (sources). Recognized drawings elicited more positive ERPs than new drawings. Independent of accuracy in the spatial judgment, the old/new effect in the source recognition task was larger over the prefrontal scalp, and of longer temporal duration than in the item recognition task, suggesting that the source memory task engaged a qualitatively distinct memory process. More posterior scalp sites were sensitive to the accuracy of the source judgment, but this effect was delayed relative to the difference between studied and unstudied drawings, suggesting that source memory processes are completed after item recognition. Similarities and differences between spatial source memory and memory for conjunctions of other stimulus attributes are discussed, together with the role of prefrontal cortex in memory.