Electrophysiological correlates of perceptual auditory priming without explicit recognition memory

Harris, Jill D., Cutmore, Tim R. H., O'Gorman, John, Finnigan, Simon and Shum, David H. K. (2013) Electrophysiological correlates of perceptual auditory priming without explicit recognition memory. Journal of Psychophysiology, 27 4: 185-195. doi:10.1027/0269-8803/a000104

Author Harris, Jill D.
Cutmore, Tim R. H.
O'Gorman, John
Finnigan, Simon
Shum, David H. K.
Title Electrophysiological correlates of perceptual auditory priming without explicit recognition memory
Journal name Journal of Psychophysiology   Check publisher's open access policy
ISSN 0269-8803
Publication date 2013-01-01
Year available 2013
Sub-type Article (original research)
DOI 10.1027/0269-8803/a000104
Open Access Status Not yet assessed
Volume 27
Issue 4
Start page 185
End page 195
Total pages 11
Place of publication Boston, MA United States
Publisher Hogrefe Publishing
Language eng
Subject 2800 Neuroscience
3206 Neuropsychology and Physiological Psychology
1314 Physiology
Abstract The aim of this study was to identify an event-related potential (ERP correlate) of perceptual auditory priming using a method that can dissociate it from explicit memory similar to Rugg et al. (1998). EEG was recorded during performance of an auditory word recognition test, where 17 participants discriminated "old" from "new" aural words, encoded using either a "deep" or "shallow" levels-of-processing (LOP) study task. A right-lateralized P200 effect was modulated by words' old/new status but not by accuracy of recognition or LOP manipulation. Because this effect was driven by simple repetition rather than factors known to influence episodic recognition memory, a "bottom-up" perceptual priming function was inferred which was substantiated by its early temporal appearance. A similar ERP amplitude modulation was evident across a broader topographical region during the subsequent N400 time interval. Conversely the late posterior component (LPC; 500-800 ms) for deeply-encoded, correctly-recognized words was of higher amplitude than LPCs for shallowly-encoded and new words, consistent with proposals that this ERP component indexes episodic memory. To our knowledge this is the first report of an ERP correlate of auditory perceptual priming dissociated from explicit episodic memory.
Keyword Auditory perceptual priming
Event-related potential (ERP)
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Minerals Industry Safety and Health Centre Publications
UQ Centre for Clinical Research Publications
Official 2014 Collection
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