Unit responses in the frog's caudal thalamus.
Single unit microelectrode recordings were made in the caudal thalamic region of the frog, Rana pipiens, from a sample of multimodal sensory units which included monocular, binocular, tactile, and spontaneous types, and which showed a wide variety of receptive field sizes, response rates, preferred stimulus sizes habituation rates, and velocity and tactile sensitivities. A number of special response properties were occasionally observed, including directional sensitivity, stationary object sensitivity, afterdischarges, and visual and tactile inhibitory fields. Computer analysis of spontaneously active units revealed four types: regular, exponential, bursting, and multimodal.
D000818:Animals; D001001:Anura; D001362:Avoidance Learning; D010775:Photic Stimulation; D011894:Rana pipiens / Q000502:physiology*; D013788:Thalamus / Q000502:physiology*; D014110:Touch; D014794:Visual Fields; D014795:Visual Pathways / Q000502:physiology*; D014796:Visual Perception