The visually guided development of facial representations in the primate ventral visual pathway: A computer modeling study.

Citation

Eguchi, A., Humphreys, G. W., & Stringer, S. M. (2016). The visually guided development of facial representations in the primate ventral visual pathway: A computer modeling study. Psychological Review, 123(6), 696-739.

http://dx.doi.org/10.1037/rev0000042

Abstract

Experimental studies have shown that neurons at an intermediate stage of the primate ventral visual pathway, occipital face area, encode individual facial parts such as eyes and nose while neurons in the later stages, middle face patches, are selective to the full face by encoding the spatial relations between facial features. We have performed a computer modeling study to investigate how these cell firing properties may develop through unsupervised visually guided learning. A hierarchical neural network model of the primate’s ventral visual pathway is trained by presenting many randomly generated faces to the network while a local learning rule modifies the strengths of the synaptic connections between neurons in successive layers. After training, the model is found to have developed the experimentally observed cell firing properties. In particular, we have shown how the visual system forms separate representations of facial features such as the eyes, nose, and mouth as well as monotonically tuned representations of the spatial relationships between these facial features. We also demonstrated how the primate brain learns to represent facial expression independently of facial identity. Furthermore, based on the simulation results, we propose that neurons encoding different global attributes simply represent different spatial relationships between local features with monotonic tuning curves or particular combinations of these spatial relations. (PsycINFO Database Record (c) 2016 APA, all rights reserved)

Unique Identifier

2016-51969-002

Title

The visually guided development of facial representations in the primate ventral visual pathway: A computer modeling study.

Publication Date

Nov 2016

Publication History

Accepted: Jul 12, 2016

Revised: Jul 12, 2016

First Submitted: Sep 5, 2015

Language

English

Author Identifier

Eguchi, Akihiro; Humphreys, Glyn W.; Stringer, Simon M.

Email

Eguchi, Akihiro: akihiro.eguchi@psy.ox.ac.uk

Correspondence Address

Eguchi, Akihiro: Department of Experimental Psychology, Oxford University, Tinbergen Building, 9 South Parks Road, Oxford, United Kingdom, OX1 3UD, akihiro.eguchi@psy.ox.ac.uk

Affiliation

Eguchi, Akihiro: Department of Experimental Psychology, Oxford University, Oxford, United Kingdom

Humphreys, Glyn W.: Department of Experimental Psychology, Oxford University, Oxford, United Kingdom

Stringer, Simon M.: Department of Experimental Psychology, Oxford University, Oxford, United Kingdom

Source

Psychological Review, Vol 123(6), Nov 2016, 696-739.

NLM Title Abbreviation

Psychol Rev

ISSN

1939-1471(Electronic); 0033-295X(Print)

Publisher

US: American Psychological Association

Other Publishers

US: Macmillan & Company

US: Psychological Review Company

US: The Macmillan Company

US: The Review Publishing Company

Format Covered

Electronic

Publication Type

Journal; Peer Reviewed Journal

Document Type

Journal Article

Digital Object Identifier

http://dx.doi.org/10.1037/rev0000042

Keywords

primate ventral visual pathway; face processing; facial expression; neural network model; trace learning

Index Terms

*Face Perception; *Facial Expressions; *Models; *Neural Networks; *Primates (Nonhuman); Basal Ganglia; Learning

PsycINFO Classification

2520 Neuropsychology & Neurology

Population Group

Animal

Copyright

Holder: American Psychological Association

Year: 2016

Methodology

Mathematical Model

Grant Sponsorship

Sponsor: Oxford Foundation for Theoretical Neuroscience and Artificial Intelligence, United Kingdom
Recipient: No recipient indicated

Conference

Annual Computational Neuroscience Meeting: CNS2014, 23rd, Quebec City, PQ, Canada; Some of the data and the ideas reported in this article have been presented at the aforementioned conference.

Release Date

20161031 (PsycINFO); 20161031 (PsycARTICLES)

References

Number of Citations: 79, Number of Citations Displayed: 79