Hemodynamic and affective correlates assessed during performance on the Columbia Card Task (CCT)
Open access
Datum
2014-12Typ
- Journal Article
Abstract
The study aimed to test the potential of functional near-infrared spectroscopy (fNIRS) in combination with electrodermal activity (EDA) in a decision paradigm by means of the Columbia Card Task (CCT). The CCT is a dynamic decision task characterized by assessing subjects’ risk-taking via eliciting voluntary stopping points in a series of incrementally increasingly risky choices. Using the combined fNIRS-EDA approach, we aim to examine the hemodynamic and affective correlates of both decision and outcome responses during performance on the CCT. Twenty healthy subjects completed the Cold and Hot CCT version while fNIRS over prefrontal cortex and EDA were recorded. Results showed that (1) in the decision phase fNIRS revealed larger total hemoglobin concentration changes [tHb] in the Cold as compared to the Hot CCT, whereas EDA revealed an opposite pattern with larger skin conductance responses (SCRs) to the Hot as compared to the Cold CCT. (2) No significant [tHb] signals or SCRs were found in the outcome phase. (3) Coherence calculations between fNIRS and EDA in the heart rate frequency showed a significant increase during the Hot as compared to the Cold CCT. Our findings designate fNIRS as suitable tool for monitoring decision-making processes. The combination of fNIRS and EDA demonstrates the potential of simultaneously assessing the interaction between hemodynamic and affective responses which can provide additional information concerning the relationship between these two physiological systems for various research areas. Mehr anzeigen
Persistenter Link
https://doi.org/10.3929/ethz-b-000079529Publikationsstatus
publishedExterne Links
Zeitschrift / Serie
Brain Imaging and BehaviorBand
Seiten / Artikelnummer
Verlag
SpringerThema
Decision-making; Risk-taking; Affective system; Coherence analysisOrganisationseinheit
03842 - Murphy, Ryan O. (ehemalig)
Anmerkungen
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.