Who said what? An event-related potential investigation of source and item memory

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Who said what? An event-related potential investigation of source and item memory (1998)

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by Ava J. Senkfor , Cyma Van Petten

Venue:	Journal of Experimental Psychology: Learning, Memory, and Cognition
Citations:	51 - 4 self

BibTeX

@ARTICLE{Senkfor98whosaid,
    author = {Ava J. Senkfor and Cyma Van Petten},
    title = {Who said what? An event-related potential investigation of source and item memory},
    journal = {Journal of Experimental Psychology: Learning, Memory, and Cognition},
    year = {1998},
    pages = {1005--1025}
}

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Abstract

Event-related potentials (ERPs) were recorded uring recognition tasks for spoken words alone (items) or for both words and the voice of the speaker (sources). Neither performance nor ERP measures suggested that voice information was retrieved automatically during the item-recognition task. In both tasks, correctly recognized old words elicited more positive ERPs than new words, beginning around 400 ms poststimulus onset. In the source task only, old words also elicited a focal prefrontal positivity beginning about 700 ms. The prefrontal task effect did not distinguish trials with accurate and inaccurate voice judgments and is interpreted as reflecting the search for voice information i memory. More posterior recording sites were sensitive to the successful recovery of voice or source information. The results indicate that word and voice information were retrieved hierarchically and distinguish retrieval attempt from retrieval success. Everyone has had the experience of remembering a fact without being able to recall how it was learned. Remember-ing the source of one's knowledge is not always important, but in some cases, it may be critical for one's subsequent

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