cerebellum - Summary of Lecture 3 VETS2011 Cerebellum Demo...

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Summary of Lecture 3 VETS2011 Cerebellum Demo of VOR in owl: VOR plasticity World record cerebellum: Electric fish: nanosecond timing Summary of structure and function in cerebellum Time-to-place conversion Adaptive plasticity of VOR (Owl, “wet head example”) Contrast procedural learning with declarative memory
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Procedural Memory Gain of reflexes (e.g. VOR) Conditioned reflexes (e.g. eye blink) Skilled sequences (e.g. cycling, typing)
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Vestibulo-Ocular Reflex (VOR) Fastest reflex in brain Operates “perfectly” without cerebellum (i.e. same conditions) But gain adaptation requires cerebellum (i.e. as conditions change, such as growth, ageing, muscle strength, oxidative damage etc)
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VOR circuit: 1. Vestibular hair cell 2. Vestibular neuron 3. Oculomotor neuron Only 2 synapses. Purkinje cell modulates VOR reflex at vestibular neuron
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Electric Fish
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This note was uploaded on 01/06/2012 for the course STEP 1 taught by Professor Dr.aslam during the Fall '11 term at Montgomery College.

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cerebellum - Summary of Lecture 3 VETS2011 Cerebellum Demo...

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