MF basal ganglia W10.ppt

MF basal ganglia W10.ppt - Motor control II continued...

Info iconThis preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
Motor control II continued
Background image of page 1

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

View Full DocumentRight Arrow Icon
Mirror neurons
Background image of page 2
Mirror neurons
Background image of page 3

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

View Full DocumentRight Arrow Icon
Ventral Lateral premotor cortex: Mirror neurons
Background image of page 4
Motor control III: the basal ganglia Lower motoneurons of spinal cord – control of skeletal muscle Upper motoneurons of brain stem and cortex – regulatoin of lower motor neurons, control of visceral automatic function (heart, breathing, posture), and of voluntary function (coordinated movements) Basal Ganglia and Cerebellum – regulation of upper motor neurons of cortex via disinhibition what control the controller?
Background image of page 5

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

View Full DocumentRight Arrow Icon
Basal Ganglia The basal ganglia (or basal nuclei) are a group of nuclei (compact cluster of neurons functionally associated w/eachother) in the brains of vertebrates, situated at the base of the forebrain and strongly connected with the cerebral cortex, thalamus. Associated with motor control: action selection , that is, the “decision” of which of several possible behaviors to execute at a given time. Exert an inhibitory influence on a number of motor systems, and that a release of inhibition permits a motor system to become active.
Background image of page 6
We know the basal ganglia is involved in motor control, partly because… Postmortem examination of brains of individuals with motor disorders revealed pathology of the basal ganglia nuclei This illustrates how clinical correlations can teach us about how the brain controls behavior.
Background image of page 7

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

View Full DocumentRight Arrow Icon
The main players Striatum (putamen and the caudate) Globus pallidus (external and internal) Substantia Nigra Thalamus
Background image of page 8
Motor components of human BG
Background image of page 9

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

View Full DocumentRight Arrow Icon
INPUTS to BG: The striatum receives glutamatergic input via the corticostriatal pathway. Projections from substantia nigra Note: collectively, the caudate and putamen are referred to as the striatum.
Background image of page 10
OUTPUTS from BG Note: collectively, the caudate and putamen are referred to as the striatum.
Background image of page 11

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

View Full DocumentRight Arrow Icon
The striatum receives glutamatergic inputs from most of cortex. THE ONLY CORTICAL AREAS THAT DO NOT PROJECT TO
Background image of page 12
Image of page 13
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 41

MF basal ganglia W10.ppt - Motor control II continued...

This preview shows document pages 1 - 13. Sign up to view the full document.

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