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ERIC Number: EJ850767
Record Type: Journal
Publication Date: 2009-Sep
Pages: 31
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0010-0285
Sticky Plans: Inhibition and Binding during Serial-Task Control
Mayr, Ulrich
Cognitive Psychology, v59 n2 p123-153 Sep 2009
Recent evidence suggests substantial response-time costs associated with lag-2 repetitions of tasks within explicitly controlled task sequences [Koch, I., Philipp, A. M., Gade, M. (2006). Chunking in task sequences modulates task inhibition. "Psychological Science," 17, 346-350; Schneider, D. W. (2007). Task-set inhibition in chunked task sequences. "Psychonomic Bulletin & Review," 14, 970-976], a result that has been interpreted as inhibition of no-longer relevant tasks. Experiments 1-3 confirm much larger lag-2 costs under serial-control than under externally cued conditions, but also show (a) that these costs occur only when sequences contain at least two distinct chunks and (b) that direct lag-2 repetitions are not a necessary condition for their occurrence. This pattern suggests the hypothesis that rather than task-set inhibition, the large lag-2 costs observed in complex sequences, reflect interference resulting from links between positions within a sequential plan and the individual tasks controlled by this plan. The remaining experiments successfully test this hypothesis (Experiment 4), rule out chaining accounts as a potential alternative explanation (Experiment 5), and demonstrate that interference results from information stored in long-term memory rather than working memory (Experiment 6). Implications of these results for an integration of models of serial-order control and serial memory are discussed. (Contains 1 table and 9 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A