Sensory population decoding for visually guided movements.

Published

Journal Article

We have used a new approach to study the neural decoding function that converts the population response in extrastriate area MT into estimates of target motion to drive smooth pursuit eye movement. Experiments reveal significant trial-by-trial correlations between the responses of MT neurons and the initiation of pursuit. The preponderance of significant correlations and the relatively low reduction in noise between MT and the behavioral output support the hypothesis of a sensory origin for at least some of the trial-by-trial variation in pursuit initiation. The finding of mainly positive MT-pursuit correlations, whether the target speed is faster or slower than the neuron's preferred speed, places strong constraints on the neural decoding computation. We propose that decoding is based on normalizing a weighted population vector of opponent motion responses; normalization comes from neurons uncorrelated with those used to compute the weighted population vector.

Full Text

Duke Authors

Cited Authors

  • Hohl, SS; Chaisanguanthum, KS; Lisberger, SG

Published Date

  • July 10, 2013

Published In

Volume / Issue

  • 79 / 1

Start / End Page

  • 167 - 179

PubMed ID

  • 23849202

Pubmed Central ID

  • 23849202

Electronic International Standard Serial Number (EISSN)

  • 1097-4199

Digital Object Identifier (DOI)

  • 10.1016/j.neuron.2013.05.026

Language

  • eng

Conference Location

  • United States