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Analysis of Complex Motion Patterns by Form/Cue Invariant MSTd Neurons

Geesaman, Bard J. and Andersen, Richard A. (1996) Analysis of Complex Motion Patterns by Form/Cue Invariant MSTd Neurons. Journal of Neuroscience, 16 (15). pp. 4716-4732. ISSN 0270-6474. PMCID PMC6579023. doi:10.1523/jneurosci.16-15-04716.1996.

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Several groups have proposed that area MSTd of the macaque monkey has a role in processing optical flow information used in the analysis of self motion, based on its neurons’ selectivity for large-field motion patterns such as expansion, contraction, and rotation. It has also been suggested that this cortical region may be important in analyzing the complex motions of objects. More generally, MSTd could be involved in the generic function of complex motion pattern representation, with its cells responsible for integrating local motion signals sent forward from area MT into a more unified representation. If MSTd is extracting generic motion pattern signals, it would be important that the preferred tuning of MSTd neurons not depend on the particular features and cues that allow these motions to be represented. To test this idea, we examined the diversity of stimulus features and cues over which MSTd cells can extract information about motion patterns such as expansion, contraction, rotation, and spirals. The different classes of stimuli included: coherently moving random dot patterns, solid squares, outlines of squares, a square aperture moving in front of an underlying stationary pattern of random dots, a square composed entirely of flicker, and a square of nonFourier motion. When a unit was tuned with respect to motion patterns across these stimulus classes, the motion pattern producing the most vigorous response in a neuron was nearly the same for each class. Although preferred tuning was invariant, the magnitude and width of the tuning curves often varied between classes. Thus, MSTd is form/cue invariant for complex motions, making it an appropriate candidate for analysis of object motion as well as motion introduced by observer translation.

Item Type:Article
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URLURL TypeDescription CentralArticle
Andersen, Richard A.0000-0002-7947-0472
Additional Information:© 1996 Society for Neuroscience. Received Sept. 20, 1995; revised May 7, 1996; accepted May 13, 1996. This work was supported by National Institutes of Health Grant EY07492, the Office of Naval Research, the Sloan Foundation, and the Human Frontiers Scientific Program. We thank Ning Qian and David Bradley for their helpful comments on earlier versions of this manuscript, and Gail Robertson for technical assistance. We are also indebted to the two anonymous reviewers for their comments and suggestions.
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Human Frontier Science ProgramUNSPECIFIED
Subject Keywords:area MSTd; optical flow; object motion; motion perception; form/cue invariance; extrastriate cortex
Issue or Number:15
PubMed Central ID:PMC6579023
Record Number:CaltechAUTHORS:20191030-153628023
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Official Citation:The Analysis of Complex Motion Patterns by Form/Cue Invariant MSTd Neurons. Bard J. Geesaman, Richard A. Andersen. Journal of Neuroscience 1 August 1996, 16 (15) 4716-4732; DOI: 10.1523/JNEUROSCI.16-15-04716.1996
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99569
Deposited By: Tony Diaz
Deposited On:31 Oct 2019 01:49
Last Modified:17 Feb 2022 00:24

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