title: Spatial and temporal frequency tuning and contrast sensitivity of single neurons in area 21a of the cat.
abstract: The spatial and temporal selectivities of single neurons in area 21a of the adult cat were investigated using sinusoidal gratings. Optimal spatial frequencies and visual acuity (high cut-off frequency) were fairly low and spatial bandwidth was mainly narrow. Contrast threshold was generally low but a substantial number of cells were only excited by high contrast stimuli. The temporal selectivity suggests that cells responded to a wide range of temporal frequencies.
authors: Groupe de Recherche en Neuropsychologie Expérimentale, Université de Montréal, Qué, Canada.
authors: E
authors: E
authors: Tardif
authors: A
authors: A
authors: Bergeron
authors: F
authors: F
authors: Lepore
authors: J P
authors: JP
authors: Guillemot
mesh_terms: D000818:Animals; D002415:Cats; D015350:Contrast Sensitivity / Q000502:physiology*; D007839:Functional Laterality / Q000502:physiology; D009474:Neurons / Q000502:physiology*; D013028:Space Perception / Q000502:physiology*; D015348:Vision, Binocular / Q000502:physiology; D014785:Vision, Ocular / Q000502:physiology*; D014793:Visual Cortex / Q000166:cytology / Q000502:physiology*; D014794:Visual Fields / Q000502:physiology