Thalamocortical connections of rat posterior parietal cortex.
The neuronal connections of rat posterior parietal cortex (PPC) have been examined using retrograde fluorescent axonal tracers. We have found that PPC receives thalamic input predominantly from the lateral posterior and lateral dorsal nuclei, and not from the ventrobasal nucleus, which projects to the rostrally adjacent hindlimb cortex, or from the dorsal lateral geniculate nucleus, which projects to the caudally adjacent visual association area. PPC has reciprocal corticocortical connections with medial agranular cortex and orbital cortex; together, these three cortical areas may function as a network for directed attention in rats.
Chandler
H C
HC
Department of Neurological Surgery, University of Florida, Gainesville 32610.
King
V
V
Corwin
J V
JV
Reep
R L
RL
D000344:Afferent Pathways / Q000033:anatomy & histology; D000578:Amidines; D000818:Animals; D001288:Attention / Q000502:physiology; D001931:Brain Mapping; D004525:Efferent Pathways / Q000033:anatomy & histology; D005456:Fluorescent Dyes; D010296:Parietal Lobe / Q000033:anatomy & histology* / Q000502:physiology; D051381:Rats / Q000033:anatomy & histology*; D013037:Spatial Behavior; D013266:Stilbamidines; D013788:Thalamus / Q000033:anatomy & histology* / Q000502:physiology
C049774:2-hydroxy-4,4'-diamidinostilbene, methanesulfonate salt; D000578:Amidines; D005456:Fluorescent Dyes; D013266:Stilbamidines; C031455:diamidino compound 253-50