Rat's claustrum shows two main cortico-related zones.
Methods of retrograde axonal transport were employed to evaluate the topography and overlap of claustroneocortical connections in the rat. Fluorescent tracers Fast Blue (FB) and Diamidino Yellow (DY) were injected simultaneously in various combinations into the motor, somatosensory, auditory and visual cortical areas. Experiments showed that claustroneocortical projections are organized in two main cortico-related zones: sensorimotor and visuoauditory. The sensorimotor zone occupies the anterodorsal part whereas the visuoauditory occupies the posteroventral part of the claustrum. Between these two main zones only a scanty overlap was observed. In the sensorimotor zone a large overlap between neurons projecting to the motor and somatosensory cortical areas exists. The visuoauditory zone is characterized by a full overlap of neuronal populations projecting to the visual and auditory areas.
Sadowski
M
M
Department of Anatomy and Neurobiology, Medical University of Gdańsk, Poland.
Moryś
J
J
Jakubowska-Sadowska
K
K
Narkiewicz
O
O
D000578:Amidines; D000818:Animals; D001303:Auditory Cortex / Q000166:cytology / Q000502:physiology; D001479:Basal Ganglia / Q000502:physiology*; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000166:cytology / Q000502:physiology*; D005456:Fluorescent Dyes; D009044:Motor Cortex / Q000166:cytology / Q000502:physiology; D009434:Neural Pathways / Q000166:cytology / Q000502:physiology; D009474:Neurons / Q000502:physiology; D051381:Rats; D017208:Rats, Wistar; D013003:Somatosensory Cortex / Q000166:cytology / Q000502:physiology; D014793:Visual Cortex / Q000166:cytology / Q000502:physiology
D000578:Amidines; D005456:Fluorescent Dyes; C031455:diamidino compound 253-50; C037945:diamidino yellow