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Chunking processes in the learning of event sequences : Electrophysiological indicators
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Schlaghecken, Friederike, StÜrmer, Birgit and Eimer, Martin (2000) Chunking processes in the learning of event sequences : Electrophysiological indicators. Memory & Cognition, Volume 28 (Number 5). pp. 821-831. doi:10.3758/BF03198417 ISSN 0090-502X.
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Official URL: http://dx.doi.org/10.3758/BF03198417
Abstract
The present study investigated whether effects of implicit learning (IL) are due to well-learned and explicitly represented parts of the stimulus material (“chunks”). To this purpose, event-related brain potentials (ERPs) were recorded during an oddball-version of a serial reaction time (RT) task: At unpredictable positions within a 16-item letter sequence, single deviant items replaced an item of the repeatedly presented standard sequence. After acquisition, the “process dissociation procedure” (Jacoby, 1991) was adopted to identify explicitly learned sequence parts for each participant. Acquisition of sequence knowledge was reflected in faster RTs for standard items than for deviant items and in enhanced N2b and P3b components for deviant items. While the ERP effects were obtained for explicitly represented sequence parts only, RT effects were independent of subsequent reproduction performance. These results indicated that (1) ERPs are a valid measure of explicit knowledge, (2) implicit and explicit knowledge coexist in serial RT tasks, and (3) chunking processes play a major role in the acquisition of explicit knowledge about event sequences.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Psychology | ||||
Journal or Publication Title: | Memory & Cognition | ||||
Publisher: | Psychonomic Society, Inc; Springer-Verlag | ||||
ISSN: | 0090-502X | ||||
Official Date: | 1 September 2000 | ||||
Dates: |
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Volume: | Volume 28 | ||||
Number: | Number 5 | ||||
Page Range: | pp. 821-831 | ||||
DOI: | 10.3758/BF03198417 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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