TODO: Skip to main content
Top
Gepubliceerd in:

22-09-2017 | Original Article

The dynamic balance between cognitive flexibility and stability: the influence of local changes in reward expectation and global task context on voluntary switch rate

Auteurs: Kerstin Fröber, Lisa Raith, Gesine Dreisbach

Gepubliceerd in: Psychological Research | Uitgave 1/2018

Log in om toegang te krijgen
share
DELEN

Deel dit onderdeel of sectie (kopieer de link)

  • Optie A:
    Klik op de rechtermuisknop op de link en selecteer de optie “linkadres kopiëren”
  • Optie B:
    Deel de link per e-mail

Abstract

Current theories describe cognitive control as a dynamic balance between two antagonistic control functions, namely cognitive stability and flexibility. Recent evidence suggests that this balance between these control modes is modulated by changing reward prospects on the one side and contextual parameters on the other. In the present study, we aim to investigate how both factors interact. In a between-subjects design, we manipulated the context by the ratio of free- to forced-choice trials (80:20, 50:50, 20:80) in a hybrid task-switching paradigm, combining forced- and free-choice task switching. In addition, two reward magnitudes changed randomly from trial to trial. Results showed an overall increase in voluntary switch rate (VSR) with increasing forced-choice frequency, demonstrating a robust context effect. Moreover, the trial-by-trial reward manipulation interacted with this global context effect: with a stability bias (80% free:20% forced), only an increase in reward expectation increased VSR, whereas with a more flexible global bias (in the 50:50 or 20:80 conditions) VSR increased when reward expectation changed and reduced when reward expectation remained high. Taken together, results suggest that the cognitive system is able to adapt to global context parameters and to respond to rapid changes in reward expectation at the same time.
Voetnoten
Deze inhoud is alleen zichtbaar als je bent ingelogd en de juiste rechten hebt.
Literatuur
Deze inhoud is alleen zichtbaar als je bent ingelogd en de juiste rechten hebt.
Metagegevens
Titel
The dynamic balance between cognitive flexibility and stability: the influence of local changes in reward expectation and global task context on voluntary switch rate
Auteurs
Kerstin Fröber
Lisa Raith
Gesine Dreisbach
Publicatiedatum
22-09-2017
Uitgeverij
Springer Berlin Heidelberg
Gepubliceerd in
Psychological Research / Uitgave 1/2018
Print ISSN: 0340-0727
Elektronisch ISSN: 1430-2772
DOI
https://doi.org/10.1007/s00426-017-0922-2