Learned switch readiness via concurrent activation of task sets: Evidence from task specificity and memory load.
Cognitive flexibility increases when switch demands increase. In task switching experiments, repeated pairing of flexibility-demanding situations with specific contexts leads subjects to become more prepared to adapt to changing task demands in those contexts. One form of such upregulated cognitive...
| Publicado en: | Memory & Cognition Vol. 52; no. 7; pp. 1510 - 1530 |
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| Autores principales: | , |
| Formato: | Artículo |
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Springer Nature
Oct2024
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=180590068&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 180590068 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 0090502X MEG jtl: Memory & Cognition issn: 0090502X maglogo: N pubinfo: dt: Oct2024 vid: 52 iid: 7 pid: 237 pub: Springer Nature artinfo: ui: 180590068 10.3758/s13421-024-01560-5 ppf: 1510 ppct: 20 formats: fmt: – @attributes: type: T – @attributes: type: P size: 1.3MB tig: atl: Learned switch readiness via concurrent activation of task sets: Evidence from task specificity and memory load. aug: au: Nack, Corey A. Yu-Chin, Chiu affil: https://ror.org/02dqehb95 Department of Psychological Sciences, Purdue University, 703 Third Street, 47907, West Lafayette, IN, USA su: Task performance Executive function Undergraduates Analysis of variance Descriptive statistics Psychology of movement Experimental design Short-term memory Associative memory (Psychology) Reaction time Cognitive flexibility sug: subj: Task performance Executive function Undergraduates Analysis of variance Descriptive statistics Psychology of movement Experimental design Short-term memory Associative memory (Psychology) Reaction time Cognitive flexibility keyword: Associative learning Context control Metacontrol Switch probability effects Associative learning Context control Metacontrol Switch probability effects ab: Cognitive flexibility increases when switch demands increase. In task switching experiments, repeated pairing of flexibility-demanding situations with specific contexts leads subjects to become more prepared to adapt to changing task demands in those contexts. One form of such upregulated cognitive flexibility has been demonstrated with a list-wide switch probability (LWSP) effect, where switch costs are smaller in lists with frequent switches than in lists with rare switches. According to a recent proposal, the LWSP effect is supported by a concurrent activation mechanism whereby both task rules are kept available simultaneously in working memory. We conducted four experiments to test two key features in this concurrent activation account of LWSP effects. First, we asked whether the LWSP effects are limited to only the trained tasks, and second, we asked whether concurrent working memory load would reduce the LWSP effects. In Experiment 1, we replicated and extended previous findings that the LWSP manipulation modulates both performance (switch costs) and voluntary switch rates, indicating that context-driven increases in flexibility are generalizable so long as the task-sets remain the same. Results of Experiments 2 and 3 showed that novel tasks do not benefit from the concurrent activation of the two other tasks, suggesting that the LWSP effect is task specific. Experiment 4 showed that holding additional information in working memory reduces the LWSP effect. While these findings support the hypothesis of concurrent activation underlying the increased flexibility in the LWSP effect, caveats remain; additional research is needed to further test this account. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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