Neuroanatomy accounts for age-related changes in risk preferences

Michael A. Grubb, Agnieszka Tymula, Sharon Gilaie-Dotan, Paul W. Glimcher, Ifat Levy

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


Many decisions involve uncertainty, or 'risk', regarding potential outcomes, and substantial empirical evidence has demonstrated that human aging is associated with diminished tolerance for risky rewards. Grey matter volume in a region of right posterior parietal cortex (rPPC) is predictive of preferences for risky rewards in young adults, with less grey matter volume indicating decreased tolerance for risk. That grey matter loss in parietal regions is a part of healthy aging suggests that diminished rPPC grey matter volume may have a role in modulating risk preferences in older adults. Here we report evidence for this hypothesis and show that age-related declines in rPPC grey matter volume better account for age-related changes in risk preferences than does age per se. These results provide a basis for understanding the neural mechanisms that mediate risky choice and a glimpse into the neurodevelopmental dynamics that impact decision-making in an aging population.

Original languageEnglish
Article number13822
JournalNature Communications
StatePublished - 13 Dec 2016

Bibliographical note

Funding Information:
Research supported by NIH grants R01 5R01AG033406 to P.W.G. and I.L, and R21AG049293 to I.L.

Publisher Copyright:
© 2016 The Author(s).


Dive into the research topics of 'Neuroanatomy accounts for age-related changes in risk preferences'. Together they form a unique fingerprint.

Cite this