Journal article
COSTS OF A PREDICTABLE SWITCH BETWEEN SIMPLE COGNITIVE TASKS
- Abstract:
- In an investigation of task-set reconfiguration, participants switched between 2 tasks on every 2nd trial in 5 experiments and on every 4th trial in a final experiment. The tasks were to classify either the digit member of a pair of characters as even/odd or the letter member as consonant/vowel. As the response-stimulus interval increased up to 0.6 s, the substantial cost to performance of this predictable task-switch fell: Participants could partially reconfigure in advance of the stimulus. However, even with 1.2 s available for preparation, a large asymptotic reaction time (RT) cost remained, but only on the 1st trial of the new task. This is attributed to a component of reconfiguration triggered exogenously, i. e., only by a task-relevant stimulus. That stimuli evoke associated task-sets also explains why RT and switch costs increased when the stimulus included a character associated with the currently irrelevant task. © 1995 American Psychological Association.
- Publication status:
- Published
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Authors
- Journal:
- JOURNAL OF EXPERIMENTAL PSYCHOLOGY-GENERAL More from this journal
- Volume:
- 124
- Issue:
- 2
- Pages:
- 207-231
- Publication date:
- 1995-06-01
- DOI:
- ISSN:
-
0096-3445
- Pubs id:
-
pubs:223184
- UUID:
-
uuid:6180113d-b831-419b-8716-46652110880d
- Local pid:
-
pubs:223184
- Source identifiers:
-
223184
- Deposit date:
-
2012-12-19
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- Copyright date:
- 1995
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