Report for: Neuroanatomy accounts for age-related changes in risk preferences

Title	Neuroanatomy accounts for age-related changes in risk preferences
Published in	Nature Communications, December 2016
DOI	10.1038/ncomms13822
Pubmed ID	27959326
Authors	Michael A. Grubb, Agnieszka Tymula, Sharon Gilaie-Dotan, Paul W. Glimcher, Ifat Levy
Abstract	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.

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Twitter Demographics

The data shown below were collected from the profiles of 26 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Geographical breakdown

Country	Count	As %
United States	4	15%
United Kingdom	3	12%
Australia	2	8%
Spain	2	8%
Germany	1	4%
Chile	1	4%
Unknown	13	50%

Demographic breakdown

Type	Count	As %
Members of the public	17	65%
Scientists	6	23%
Practitioners (doctors, other healthcare professionals)	2	8%
Science communicators (journalists, bloggers, editors)	1	4%

Mendeley readers

The data shown below were compiled from readership statistics for 90 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country	Count	As %
United States	1	1%
Germany	1	1%
Unknown	88	98%

Demographic breakdown

Readers by professional status	Count	As %
Student > Ph. D. Student	24	27%
Researcher	16	18%
Student > Master	14	16%
Student > Doctoral Student	9	10%
Student > Bachelor	8	9%
Other	11	12%
Unknown	8	9%

Readers by discipline	Count	As %
Psychology	28	31%
Neuroscience	21	23%
Agricultural and Biological Sciences	5	6%
Social Sciences	5	6%
Economics, Econometrics and Finance	5	6%
Other	12	13%
Unknown	14	16%

Attention Score in Context

This research output has an Altmetric Attention Score of 388. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 April 2017.

All research outputs

#33,866

of 15,257,997 outputs

Outputs from Nature Communications

#460

of 28,822 outputs

Outputs of similar age

#1,786

of 385,064 outputs

Outputs of similar age from Nature Communications

#77

of 3,001 outputs

Altmetric has tracked 15,257,997 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.

So far Altmetric has tracked 28,822 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 48.5. This one has done particularly well, scoring higher than 98% of its peers.

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Neuroanatomy accounts for age-related changes in risk preferences

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