Organization of corticostriatal projections from the vibrissal representations in the primary motor and somatosensory cortical areas of rodents

2001 ◽  
Vol 439 (1) ◽  
pp. 87-103 ◽  
Author(s):  
Zachary S. Hoffer ◽  
Kevin D. Alloway
Keyword(s):  
Cortical Areas ◽  
Corticostriatal Projections ◽  
Somatosensory Cortical Areas

scholarly journals Cell type-specific variation of somatotopic precision across corticostriatal projections

2018 ◽  
Author(s):  
Bryan M. Hooks ◽  
Andrew E. Papale ◽  
Ronald Paletzki ◽  
Muhammad Feroze ◽  
Brian S. Eastwood ◽  
...  
Keyword(s):  
Basal Ganglia ◽  
Viral Vectors ◽  
Cell Types ◽  
Fluorescent Reporters ◽  
Cortical Areas ◽  
Somatotopic Organization ◽  
Corticostriatal Projections ◽  
Parallel Circuits ◽  
Specific Variation ◽  
Cell Type Specific

AbstractThe striatum shows general topographic organization and regional differences in behavioral functions. How corticostriatal topography differs across cortical areas and cell types to support these distinct functions is unclear. This study contrasted corticostriatal projections from two layer 5 cell types, intratelencephalic (IT-type) and pyramidal tract (PT-type) neurons, using viral vectors expressing fluorescent reporters in Cre-driver mice. Long-range corticostriatal projections from sensory and motor cortex are somatotopic, with a decreasing somatotopic specificity as injections move from sensory to motor and frontal areas. Somatotopic organization differs between IT-type and PT-type neurons, including injections in the same site, with IT-type neurons having higher somatotopic stereotypy than PT-type neurons. Furthermore, IT-type projections from interconnected cortical areas have stronger correlations in corticostriatal targeting than PT-type projections do. Thus, as predicted by a long-standing basal ganglia model, corticostriatal projections of interconnected cortical areas form parallel circuits in basal ganglia-thalamus-cortex loops.

Neural activities in human somatosensory cortical areas evoked by acupuncture stimulation

2007 ◽  
Vol 15 (4) ◽  
pp. 247-254 ◽  
Author(s):  
Seung-Schik Yoo ◽  
Catherine E. Kerr ◽  
Min Park ◽  
Dong-mi Im ◽  
Russell A. Blinder ◽  
...  
Keyword(s):  
Cortical Areas ◽  
Acupuncture Stimulation ◽  
Neural Activities ◽  
Somatosensory Cortical Areas
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