Brain structure and optimism bias: A voxel-based morphometry approach

Kotikalapudi, Raviteja; Dricu, Mihai; Moser, Dominik Andreas; Aue, Tatjana (2022). Brain structure and optimism bias: A voxel-based morphometry approach. Brain Sciences, 12(3), p. 315. MDPI 10.3390/brainsci12030315

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Individuals often anticipate an unrealistically favorable future for themselves (personal optimism bias) or others (social optimism bias). While such biases are well established, little is known about their neuroanatomy. In this study, participants engaged in a soccer task and estimated the likelihood of successful passes in personal and social scenarios. Voxel-based morphometry revealed that personal optimism bias varied as a positive function of gray matter volume (GMV) in the putamen, frontal pole, hippocampus, temporal pole, inferior temporal gyrus, visual association areas, and mid-superior temporal gyrus. Social optimism bias correlated positively with GMV in the temporoparietal junction and negatively with GMV in the inferior temporal gyrus and presupplementary motor areas. Together, these findings suggest that parts of our optimistic outlook are biologically rooted. Moreover, while the two biases looked similar at the behavioral level, they were related to distinct gray matter structures, proposing that their underlying mechanisms are not identical.

Item Type:

Journal Article (Original Article)

Division/Institute:

07 Faculty of Human Sciences > Institute of Psychology > PSY-Weitere Forschungsgruppen

UniBE Contributor:

Kotikalapudi, Raviteja; Dricu, Mihai; Moser, Dominik and Aue, Tatjana

Subjects:

100 Philosophy > 150 Psychology

ISSN:

2076-3425

Publisher:

MDPI

Funders:

[42] Schweizerischer Nationalfonds

Language:

English

Submitter:

Tatjana Aue

Date Deposited:

09 Mar 2022 16:17

Last Modified:

09 Mar 2022 16:17

Publisher DOI:

10.3390/brainsci12030315

Uncontrolled Keywords:

optimism bias; voxel-based morphometry; gray-matter volume; putamen; frontal pole; temporal pole; behavior; positive psychology

BORIS DOI:

10.48350/166129

URI:

https://boris.unibe.ch/id/eprint/166129

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