TY  - JOUR
A1  - Saulin, Anne
A1  - Horn, Ulrike
A1  - Lotze, Martin
A1  - Kaiser, Jochen
A1  - Hein, Grit
T1  - The neural computation of human prosocial choices in complex motivational states
T2  - NeuroImage
N2  - Motives motivate human behavior. Most behaviors are driven by more than one motive, yet it is unclear how different motives interact and how such motive combinations affect the neural computation of the behaviors they drive. To answer this question, we induced two prosocial motives simultaneously (multi-motive condition) and separately (single motive conditions). After the different motive inductions, participants performed the same choice task in which they allocated points in favor of the other person (prosocial choice) or in favor of themselves (egoistic choice). We used fMRI to assess prosocial choice-related brain responses and drift diffusion modeling to specify how motive combinations affect individual components of the choice process. Our results showed that the combination of the two motives in the multi-motive condition increased participants' choice biases prior to the behavior itself. On the neural level, these changes in initial prosocial bias were associated with neural responses in the bilateral dorsal striatum. In contrast, the efficiency of the prosocial decision process was comparable between the multi-motive and the single-motive conditions. These findings provide insights into the computation of prosocial choices in complex motivational states, the motivational setting that drives most human behaviors .
KW  - motivation
KW  - social decision-making
KW  - hierarchical drift-diffusion modeling
KW  - fMRI
KW  - social neuroscience
Y1  - 2022
UR  - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/26585
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-265852
VL  - 247
ER  -