Thalamic projections to S-I in macaque monkey
- 1 April 1978
- journal article
- research article
- Published by Wiley in Journal of Comparative Neurology
- Vol. 178 (3), 385-409
- https://doi.org/10.1002/cne.901780302
Abstract
The organization of thalamic input to functionally characterized zones in primary somatosensory cerebral cortex (S-I) of macaque monkeys (Macaca mulatta) was investigated using the method of labelling by retrograde transport of horseradish peroxidase (HRP). It was found that the cell columns positioned at the posterior margin of the band of cortex representing a given body region receive thalamic input from a posterior level of the ventroposterior thalamic nucleus (VP), and that cell columns at successively more anterior positions within that band receive input from successively more anterior levels of VP. The extreme posterior and anterior margins of the S-I hand, foot and face areas receive input from neuron populations which are not as widely separated in the anteroposterior dimension of VP as the neurons projecting to the extreme anterior and posterior margins of the proximal limb and trunk representations in S-I. These characteristics of the organization of the projections from VP to S-I are consistent with the view that the body representations in VP and S-I have the same connectivity and differential submodality distribution; and with the idea that thalamocortical connections only exist between functionally equivalent neuron populations in VP and S-I.This publication has 21 references indexed in Scilit:
- Anatomical observations on the dorsal column nuclei, their thalamic projection and the cytoarchitecture of some somatosensory thalamic nuclei in the monkeyJournal of Comparative Neurology, 1978
- Comparison of Single Unit Data Obtained from the Different Topographic Subdivisions of the Postcentral Gyrus in the Macaque: Implications for the Organization of Somatic Afferent Projection SystemsPublished by Springer Nature ,1976
- Representation of head and face in postcentral gyrus of the macaqueJournal of Neurophysiology, 1975
- Lamination and differential distribution of thalamic afferents within the sensory‐motor cortex of the squirrel monkeyJournal of Comparative Neurology, 1975
- Differential contributions of spinal pathways to body representation in postcentral gyrus of Macaca mulatta.Journal of Neurophysiology, 1974
- A temporary restraint chair for monkeysPhysiology & Behavior, 1972
- CONNEXIONS OF THE SOMATIC SENSORY CORTEX OF THE RHESUS MONKEYBrain, 1970
- Some Properties of the Thalamic Relay Cells in the Spino‐Cervico‐Lemniscal PathActa Physiologica Scandinavica, 1966
- The Location of the Thalamic Relay in the Spino‐Cervico‐Lemniscal PathActa Physiologica Scandinavica, 1965
- On the thalamo-cortical connexions of the general sensory cortex of MacacaProceedings of the Royal Society of London. B. Biological Sciences, 1953