Lecture 3 Notes - II A speculative hypothesis that the BG...

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a. Criticisms of blind sight research i. Light scatters in retina and gets to other areas ii. Some V1 is left, not enough for awareness, but good enough to figure it out iii. Consciousness issue trivial iv. Necessity of motion b. Demonstrates awareness involved in V1 And other pathways a.i. Parkinson’s disease a.i.1. Damage to direct pathway a.i.2. Decreases inhibition of the Gpi a.i.3. Therefore increases inhibition of thalamus by Gpi a.i.4. Results in difficulties in initiating motion a.ii. Huntington’s disease a.ii.1. Damage to indirect pathway a.ii.2. Increases inhibition of Gpi a.ii.3. Therefore decreases inhibition of thalamus by Gpi a.ii.4. Results in chorea – uncontrolled movements a.iii. Example videos of each disease b. The role of the BG in motor learning and cognitive learning
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Unformatted text preview: II. A speculative hypothesis that the BG and the Cerebellum are important for different forms of learning a. BG – reinforcement learning b. Cerebellum – supervised learning c. Cortex – unsupervised learning 1. Triesman – if you hear your name, you pay attention to the other side, so there is some kind of filter in the other ear 2. Deutsch – can only do one thing at a time 3. Anatomy of attention using Neuroimaging and ERPs a. Hernandez-Peon – sounds given to a cat, measured brain wave of auditory area, when presented a mouse, the brain wave was dampened – however, not great experiement cause cat can move its head and affect how the sound is perceived...
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