Mar03-08 - human brain showing types of cortices Body Maps...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: human brain showing types of cortices Body Maps in CNS Note correct figure number Cortical Maps: Proprioception Trunk (VPL) & head (VPM) maps of proprioceptors are in separate, but adjacent nuclei in the thalamus Trunk (VPL) & head (VPM) maps of proprioceptors form One Map in primary somatic sensory cortex What is the basis for the influence of cortical neurons on muscle activation? 1 The cellular architecture of the primary motor cortex corticospinal & corticobulbar tracts Pyramidal Decussation Topographic map of movement in the primary motor cortex The primary motor cortex and the premotor area in frontal lobe Nauta & Fiertag, 1986 2 Components of human basal ganglia Nauta & Fiertag, 1986 Basal ganglia circuitry Activity levels in disinhibitory circuit How Does Basal Ganglia Circuitry Fit In To This Organizational Pattern? Primary motor and sensory cortices Premotor & secondary sensory cortices Premotor cortices Higher order sensorimotor association cortices Attention Neurological diseases & basal ganglia Primary Motor cortex Primary sensory cortices Secondary Sensory cortices Language Emotions & Memory Guest Lecture: Mar 12 - Prof. Harriet Baker, Cornell Med Parkinson's Disease - A Patient and Scientist's Viewpoint 3 Chain of cells in disinhibitory circuit Chain of cells in disinhibitory circuit Sub Nigra Substantia Nigra Normally Excites Striatum; Loss of Substantia Nigra Can Lead to Increased Inhibition of Thalamus & Cortex and thus Loss of Movement) Loss of both Striatum & Globus Pallidus Can Lead to Loss of Any Inhibition in the Pathway and hence an Overall Increase in Movement (Hyperactivity) 4 ...
View Full Document

Page1 / 4

Mar03-08 - human brain showing types of cortices Body Maps...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online