cortical vs. subcortical loops
DESCRIPTION
Cortical vs. subcortical loops. Lateral inhibition in striatum. Switching from one action to another. Direct and indirect pathways. Hyperdirect pathway. Lesions that cause hemiballism. Direct pathway. Indirect pathways. Loops through the basal ganglia. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Cortical vs. subcortical loops](https://reader035.vdocument.in/reader035/viewer/2022081421/568167b3550346895ddd00fc/html5/thumbnails/1.jpg)
Cortical vs. subcortical loops
![Page 2: Cortical vs. subcortical loops](https://reader035.vdocument.in/reader035/viewer/2022081421/568167b3550346895ddd00fc/html5/thumbnails/2.jpg)
Lateral inhibition in striatum
![Page 3: Cortical vs. subcortical loops](https://reader035.vdocument.in/reader035/viewer/2022081421/568167b3550346895ddd00fc/html5/thumbnails/3.jpg)
Switching from one action to another
![Page 4: Cortical vs. subcortical loops](https://reader035.vdocument.in/reader035/viewer/2022081421/568167b3550346895ddd00fc/html5/thumbnails/4.jpg)
Direct and indirect pathways
![Page 5: Cortical vs. subcortical loops](https://reader035.vdocument.in/reader035/viewer/2022081421/568167b3550346895ddd00fc/html5/thumbnails/5.jpg)
Hyperdirect pathway
![Page 6: Cortical vs. subcortical loops](https://reader035.vdocument.in/reader035/viewer/2022081421/568167b3550346895ddd00fc/html5/thumbnails/6.jpg)
Lesions that cause hemiballism
![Page 7: Cortical vs. subcortical loops](https://reader035.vdocument.in/reader035/viewer/2022081421/568167b3550346895ddd00fc/html5/thumbnails/7.jpg)
Direct pathway
![Page 8: Cortical vs. subcortical loops](https://reader035.vdocument.in/reader035/viewer/2022081421/568167b3550346895ddd00fc/html5/thumbnails/8.jpg)
Indirect pathways
![Page 9: Cortical vs. subcortical loops](https://reader035.vdocument.in/reader035/viewer/2022081421/568167b3550346895ddd00fc/html5/thumbnails/9.jpg)
Loops through the basal ganglia
Circuit name Basal ganglia regions:
Connected with: Functions to control:
Skeletomotor Putamen; GPi, and SNpr
VL/VA; motor cortex, prefrontal cortex
Actions
Oculomotor Body of the caudate, SNpr
Intralaminar nuclei, MD, VA; frontal and parietal eye fields; superior colliculus
Gaze and orienting movements
Dorsolateral prefrontal
Head of the caudate, GPi and SNpr
VA, VL and MD; Executive function, strategic planning
Orbitofrontal Caudate, SNpr, ventral pallidum
MD; orbitofrontal cortex Motivation, ability to play well with others
Anterior cingulate aka limbic
Ventral striatum,ventral pallidum
MD; anterior cingulum Emotionality, motivated behavior