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The Basal Ganglia in Sensory Integration

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Michaelann Gabriele

on 16 October 2012

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Transcript of The Basal Ganglia in Sensory Integration

The Basal Ganglia
In
Sensory Integration Michaelann Gabriele, MA, OTR/L Is it SI or not? The Circuitry Pathways Neurotransmitters Nuclei Anatomy & Physiology Globus Pallidus Dopamine
Excitatory/Inhibitory
Glutamate
Excitatory
GABA
Inhibitory
1. Cortical-striatal projection

2. Globus Pallidus Interna

3. Striato-nigro-striatal projection

4. Thalamo-cortical projection Caudate Nucleus
Subthalamic Nucleus
Putamen
Substantia Nigra
Parallel Increased efficiency Prioritization of
perceptions
&
behaviors Integrated Hyperkinesia No:
Ballismus Athetosis Dystonia No: Hypokinesia Rigidity Decreased automatic movements Freezing during movement (Yes:) Parallel tracks: Improper attention to stimuli
Inappropriate responses Hypo/Hyper-Responsivity Integration Integrated tracks: Converging messages are
inaccurately shared Example: Trenton Reason for referral: decreased hand strength
decreased grasp
decreased visual perceptual skills Tremor Is it cerebellar, basal ganglia, or SI? Clinical Obs: Decreased prop/vest/tactile References
Fitzakerly, J. (2011). A slightly different way of
considering the circuit design. In 2011 Motor
Control. Retrieved from



Human Basal Gangia, The. (n.d.). Retrieved from


Koziol, L. F.; Budding, D. E.; & Chidekel, D. (2011).
Sensory integration, sensory processing, and sensory
modulation disorders: Putative functional
neuroanatomic underpinnings. Cerebellum, 10,
770-792.
Lundy-Ekman, L. (2007). Basal ganglia, cerebellum and
movement. In L. Lundy-Ekman (Ed.), Neuroscience:
Fundamentals for rehabilitation (3rd ed.) (pp. 243-
278). St. Louis, MO: Saunders Elsevier.
http://www.d.umn.edu/~jfitzake/Lectures/
DMED/MotorControl/Organization/System
Design.html
http://cti.itc.virginia.edu/~psyc220/kalat/JK
246.fig8.15.basal-ganglia.jpg
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