How Sequential Changes in Reward Magnitude Modulate Cognitive Flexibility: Evidence From Voluntary Task Switching.
There is much evidence that the prospect of reward modulates cognitive control in terms of more stable behavior. Increases in expected reward magnitude, however, have been suggested to increase flexible behavior as evidenced by reduced switch costs. In a series of experiments, the authors provide ev...
| Publicado en: | Journal of Experimental Psychology. Learning, Memory & Cognition Vol. 42; no. 2; pp. 285 - 296 |
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| Autores principales: | , |
| Formato: | Artículo |
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American Psychological Association
Feb2016
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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=112778730&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 112778730 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 02787393 EXL jtl: Journal of Experimental Psychology. Learning, Memory & Cognition issn: 02787393 maglogo: N pubinfo: dt: Feb2016 vid: 42 iid: 2 pid: 34 pub: American Psychological Association artinfo: ui: 112778730 10.1037/xlm0000166 ppf: 285 ppct: 11 formats: tig: atl: How Sequential Changes in Reward Magnitude Modulate Cognitive Flexibility: Evidence From Voluntary Task Switching. aug: au: Fröber, Kerstin Dreisbach, Gesine affil: University of Regensburg su: Cognitive ability Task analysis Cost analysis Comparative studies Time series analysis sug: subj: Cognitive ability Task analysis Cost analysis Comparative studies Time series analysis keyword: adaptive gain theory flexibility reward stability voluntary task switching adaptive gain theory flexibility reward stability voluntary task switching ab: There is much evidence that the prospect of reward modulates cognitive control in terms of more stable behavior. Increases in expected reward magnitude, however, have been suggested to increase flexible behavior as evidenced by reduced switch costs. In a series of experiments, the authors provide evidence that this increased cognitive flexibility following increases in reward magnitude also promotes deliberate task switching. A modified task switching paradigm with forced- and free-choice trials and varying reward prospects was used. In Experiments 1-3 the prospect of a reward increase as compared to unchanged high reward increased voluntary switching rate (VSR). Experiment 4 showed that the prospect of a reward decrease did not alter VSR as compared to unchanged low reward. Experiment 5 used a standard voluntary task switching procedure and confirmed VSR effects found in Experiments 1-4. These findings are strong evidence for a mechanism that biases the cognitive system either toward stability or flexibility depending on changing reward expectation. Results are discussed within the framework of the adaptive gain theory. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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