Subspace mapping of the three-dimensional spectral receptive field of macaque MT neurons.

ABSTRACT: Neurons in the middle temporal (MT) visual area are thought to represent the velocity (direction and speed) of motion. Previous studies suggest the importance of both excitation and suppression for creating velocity representation in MT; however, details of the organization of excitation and suppression at the MT stage are not understood fully. In this article, we examine how excitatory and suppressive inputs are pooled in individual MT neurons by measuring their receptive fields in a three-dimensional (3-D) spatiotemporal frequency domain. We recorded the activity of single MT neurons from anesthetized macaque monkeys. To achieve both quality and resolution of the receptive field estimations, we applied a subspace reverse correlation technique in which a stimulus sequence of superimposed

SUBMITTER: Inagaki M 

PROVIDER: S-EPMC4992734 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature