title: Coding of visual patterns and textures in monkey inferior temporal cortex.
abstract: Neural coding for texture features of visual objects was investigated in monkey inferior temporal cortex by inactivating intrinsic GABAergic inhibition. The inactivation enabled a substantial number of cells to respond to originally ineffective texture pattern that had a particular feature distinct from the originally effective pattern, or to ineffective texture and non-texture stimuli that possessed a component feature of the originally effective texture. Cells that showed selectivity changes related to a texture feature were often met along a vertical recording track. We suggest that a texture feature is coded by a group of cells which signal different aspects of the texture. The coding occurs at different processing levels, from extracting a particular feature within patterns to detecting complex texture features combined with color and shape of natural objects.
authors.affiliation: Graduate School of Engineering Science, Department of Cognitive Neuroscience, Osaka University Medical School, Suita, Osaka 565-0871, Japan. yi.wang@uth.tmc.edu
authors.forename: Yi
authors.initials: Y
authors.lastname: Wang
authors.forename: Ichiro
authors.initials: I
authors.lastname: Fujita
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Murayama
mesh_terms: D000818:Animals; D001640:Bicuculline / Q000008:administration & dosage / Q000031:analogs & derivatives*; D015350:Contrast Sensitivity / Q000502:physiology*; D058787:GABA-A Receptor Antagonists; D007478:Iontophoresis; D008251:Macaca; D009433:Neural Inhibition / Q000187:drug effects / Q000502:physiology; D009474:Neurons / Q000187:drug effects / Q000502:physiology; D013702:Temporal Lobe / Q000187:drug effects / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*; D005680:gamma-Aminobutyric Acid / Q000502:physiology
chemical_list: D058787:GABA-A Receptor Antagonists; C017069:bicuculline methiodide; D005680:gamma-Aminobutyric Acid; D001640:Bicuculline