Differential thalamic connectivity of rostral and caudal parts of cortical area Fr2 in rats.
Thalamocortical connections were studied after injections of retrograde tracers were made into rostral or caudal parts of cortical area Fr2 in adult rats. The data reveal that both rostral Fr2 (rFr2) and caudal Fr2 (cFr2) receive input from the centrolateral, central medial, interanteromedial, mediodorsal, paracentral, parafascicular, posterior, reuniens, rhomboid, ventrolateral, ventromedial and zona incerta nuclei. In addition, cFr2, but not rFr2, receives input from the anteromedial, anteroventral, laterodorsal and lateral posterior nuclei. These findings provide further evidence that Fr2 is connectionally and functionally heterogeneous, with rFr2 connected with somatomotor-related nuclei and with cFr2 connected with somatomotor- and visuomotor-related nuclei.
Hicks
R R
RR
Department of BioStructure, University of Connecticut Health Center, Farmington 06030.
Huerta
M F
MF
D000818:Animals; D001370:Axonal Transport; D002540:Cerebral Cortex / Q000033:anatomy & histology* / Q000502:physiology; D005452:Fluoresceins; D006735:Horseradish Peroxidase; D008863:Microspheres; D051381:Rats; D012235:Rhodamines; D013788:Thalamus / Q000033:anatomy & histology* / Q000502:physiology; D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; D014909:Wheat Germ Agglutinins
D005452:Fluoresceins; D012235:Rhodamines; D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; D014909:Wheat Germ Agglutinins; D006735:Horseradish Peroxidase