Distribution of terminals of thalamocortical fibers originating from the ventrolateral nucleus of the cat thalamus

Anterograde labelling following focal injections of Phaseolus vulgaris leucoagglutinin was used to identify the threedimensional cortical distribution of thalamocortical (TC) fibers from the ventrolateral nucleus of the thalamus of the cat. The labelled TC fibers were distributed usually in layers I and III of the motor cortex and the terminals in layer III tended to aggregate into patches about 1-1.5 mm wide in a mediolateral direction. These patches were arranged in longitudinal strips about 2-5 mm long in a rostrocaudal direction and were separated by gaps of terminal free area.

[1]  P Sterling,et al.  Synaptic termination of afferents from the ventrolateral nucleus of the thalamus in the cat motor cortex. A light and electron microscope study , 1974, The Journal of comparative neurology.

[2]  B. K. Hartman,et al.  Importance of fixation in immunohistochemistry: use of formaldehyde solutions at variable pH for the localization of tyrosine hydroxylase. , 1981, The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society.

[3]  S. Hsu,et al.  Use of avidin-biotin-peroxidase complex (ABC) in immunoperoxidase techniques: a comparison between ABC and unlabeled antibody (PAP) procedures. , 1981, The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society.

[4]  Double representation of the distal forelimb in cat motor cortex , 1979, Brain Research.

[5]  A. Samejima,et al.  Post‐natal development of the cerebello‐cerebral projection in kittens. , 1983, The Journal of physiology.

[6]  D H Hubel,et al.  Autoradiographic demonstration of ocular-dominance columns in the monkey striate cortex by means of transneuronal transport. , 1974, Brain research.

[7]  H. Sakata,et al.  Functional Organization of a Cortical Efferent System Examined with Focal Depth Stimulation in Cats , 1967 .

[8]  K. Sasaki,et al.  Characteristic features of augmenting and recruiting responses in the cerebral cortex. , 1970, Experimental neurology.

[9]  K. Itoh,et al.  Cells of different sizes in the ventral nuclei project to different layers of the somatic cortex in the cat , 1982, Brain Research.