Framing and Self-Responsibility Modulate Brain Activities in Decision Escalation
Background: Escalation of commitment is a common bias in human decision making. The present study examined (1) differences in neural recruitment for escalation and de-escalation decisions of prior investments, and (2) how the activations of these brain networks are modulated by two factors that are often argued to modulate the behavior: (i) self-responsibility, and (ii) framing of the success probabilities.
Results: Imaging data were obtained from functional magnetic resonance imaging (fMRI) applied to 29 participants. A whole-brain analysis was conducted to compare brain activations between conditions. ROI analysis, then, was used to examine if these significant activations were modulated by two contextual factors. Finally, mediation analysis was applied to explore how the contextual factors affect escalation decisions through brain activations. The findings showed that (1) escalation decisions are faster than de-escalation decisions, (2) the corresponding network of brain regions recruited for escalation (anterior cingulate cortex, insula and precuneus) decisions differs from this recruited for de-escalation decisions (inferior and superior frontal gyri), (3) the switch from escalation to de-escalation is primarily frontal gyri dependent, and (4) activation in the anterior cingulate cortex, insula and precuneus were further increased in escalation decisions, when the outcome probabilities of the follow-up investment were positively framed; and activation in the inferior and superior frontal gyri in de-escalation decisions were increased when the outcome probabilities were negatively framed.
Conclusions: Escalation and de-escalation decisions recruit different brain regions. Framing of possible outcomes as negative leads to escalation decisions through recruitment of the inferior frontal gyrus. Responsibility for decisions affects escalation decisions through recruitment of the superior (inferior) gyrus, when the decision is framed positively (negatively).
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Posted 20 Jan, 2021
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Framing and Self-Responsibility Modulate Brain Activities in Decision Escalation
Posted 20 Jan, 2021
On 05 Jan, 2021
On 05 Jan, 2021
On 05 Jan, 2021
On 29 Nov, 2020
Received 22 Nov, 2020
Received 14 Oct, 2020
On 13 Oct, 2020
Invitations sent on 07 Oct, 2020
On 07 Oct, 2020
On 23 Sep, 2020
On 22 Sep, 2020
On 22 Sep, 2020
On 29 Jun, 2020
Received 14 Jun, 2020
Received 10 Jun, 2020
On 26 May, 2020
On 26 May, 2020
Invitations sent on 21 May, 2020
On 20 May, 2020
On 19 May, 2020
On 19 May, 2020
On 10 Apr, 2020
Received 09 Apr, 2020
Received 29 Mar, 2020
Received 29 Mar, 2020
On 15 Mar, 2020
On 12 Mar, 2020
On 05 Mar, 2020
On 02 Mar, 2020
Invitations sent on 02 Mar, 2020
On 26 Feb, 2020
On 26 Feb, 2020
On 13 Feb, 2020
Background: Escalation of commitment is a common bias in human decision making. The present study examined (1) differences in neural recruitment for escalation and de-escalation decisions of prior investments, and (2) how the activations of these brain networks are modulated by two factors that are often argued to modulate the behavior: (i) self-responsibility, and (ii) framing of the success probabilities.
Results: Imaging data were obtained from functional magnetic resonance imaging (fMRI) applied to 29 participants. A whole-brain analysis was conducted to compare brain activations between conditions. ROI analysis, then, was used to examine if these significant activations were modulated by two contextual factors. Finally, mediation analysis was applied to explore how the contextual factors affect escalation decisions through brain activations. The findings showed that (1) escalation decisions are faster than de-escalation decisions, (2) the corresponding network of brain regions recruited for escalation (anterior cingulate cortex, insula and precuneus) decisions differs from this recruited for de-escalation decisions (inferior and superior frontal gyri), (3) the switch from escalation to de-escalation is primarily frontal gyri dependent, and (4) activation in the anterior cingulate cortex, insula and precuneus were further increased in escalation decisions, when the outcome probabilities of the follow-up investment were positively framed; and activation in the inferior and superior frontal gyri in de-escalation decisions were increased when the outcome probabilities were negatively framed.
Conclusions: Escalation and de-escalation decisions recruit different brain regions. Framing of possible outcomes as negative leads to escalation decisions through recruitment of the inferior frontal gyrus. Responsibility for decisions affects escalation decisions through recruitment of the superior (inferior) gyrus, when the decision is framed positively (negatively).
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7