Brain response patterns to economic inequity predict present and future depression indices

Toshiko Tanaka, Takao Yamamoto and Masahiko Haruno ()
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Toshiko Tanaka: National Institute of Information and Communications Technology
Takao Yamamoto: NHK (Japan Broadcasting Corporation)
Masahiko Haruno: National Institute of Information and Communications Technology

Nature Human Behaviour, 2017, vol. 1, issue 10, 748-756

Abstract: Abstract Widening economic inequity has been suggested to associate with depression. However, little is known about the underlying neural mechanisms of this link. Here, we demonstrate that functional magnetic resonance imaging activity patterns in the amygdala and hippocampus induced by the inequity between the self and other rewards during an economic game can predict participants’ present and future (measured one year later) depression indices. Such predictions were not possible using participant’s behavioural and socio-economic status measures. These findings suggest that sensitivity to economic inequity has a critical effect on human mood states, and the amygdala and hippocampus play a key role in individual differences in the effect.

Date: 2017
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DOI: 10.1038/s41562-017-0207-1

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