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How the brain represents other minds

Dubois, Julien and Adolphs, Ralph (2016) How the brain represents other minds. Proceedings of the National Academy of Sciences of the United States of America, 113 (1). pp. 19-21. ISSN 0027-8424. PMCID PMC4711830. http://resolver.caltech.edu/CaltechAUTHORS:20160105-123700346

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Abstract

How does the brain represent the world? Sensory neuroscience has given us a detailed window into how the brain represents physical objects in our environment: For instance, the shape, color, and direction of motion of visual stimuli are represented in an orderly fashion in higher order visual cortices. But we also represent social objects: other people and their thoughts, beliefs, and feelings. How is that kind of knowledge represented in the brain? In an ambitious new study in PNAS, Tamir et al. (1) used functional MRI (fMRI) to argue that our brains represent other minds along three broad dimensions: social impact, rationality, and valence. The approach taken by the authors is straightforward to understand by analogy. For example, we could represent any specific place on earth we have visited as a unique combination of a large number of variables: altitude, temperature, humidity, light, chemical composition of the air, and so forth. Despite the enormous number of different variables, you could quickly tell me which of these visits were more similar to one another: Standing on top of Mont Blanc would be more similar to standing on top of Mount Whitney than to lying on your towel on a beach in Aruba. To judge such similarities, you do not need to recollect all of the details; a few coarse dimensions suffice. We do the same thing when we think about other people, Tamir et al. (1) argue. Psychologists have attempted to capture the specific dimensions by which we represent others in several theories, from which the study extracted 16 dimensions for further investigation (Fig. 1A). Importantly, prior work on these dimensions was based largely on theory and on behavioral data. Tamir et al. (1) looked to the brain for further evidence.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1073/pnas.1522316113 DOIArticle
http://www.pnas.org/content/113/1/19PublisherArticle
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4711830/PubMed CentralArticle
ORCID:
AuthorORCID
Dubois, Julien0000-0002-3029-173X
Adolphs, Ralph0000-0002-8053-9692
Additional Information:© 2016 National Academy of Sciences. Published online before print December 23, 2015. Author contributions: J.D. and R.A. wrote the paper. The authors declare no conflict of interest.
PubMed Central ID:PMC4711830
Record Number:CaltechAUTHORS:20160105-123700346
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20160105-123700346
Official Citation:Julien Dubois and Ralph Adolphs How the brain represents other minds PNAS 2016 113 (1) 19-21; published ahead of print December 23, 2015, doi:10.1073/pnas.1522316113
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:63382
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:05 Jan 2016 20:47
Last Modified:07 Feb 2017 20:32

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