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Presentation Evaluating DA Neurons and Their Place in Reward/Aversive Learning Reinforcement

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Focussing on Three experiments to examine 1D/2D: 1. Prediction with 50:50 chance ◦ Relative value omission and delivery ◦ Receiving no reward relatively better than aversive stimuli 2. The effect of prediction ◦ Unexpected, expected & PE ◦ Current Reward – Expectation = Reward Prediction Error (RPE) 3. Prediction and a combination of stimuli ◦ Net value as zero

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Presentation Evaluating DA Neurons and Their Place in Reward/Aversive Learning Reinforcement
Topics this document covers:
Neuroscience Dopamine Nervous system Psychology Psychological manipulation Addiction Behaviorism Epithalamus Habenula Reward system Dopaminergic pathways Neurotransmitter
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Topics this document covers:
Neuroscience Dopamine Nervous system Psychology Psychological manipulation Addiction Behaviorism Epithalamus Habenula Reward system Dopaminergic pathways Neurotransmitter
Sample Text:
(Working = Money) • Current Reward – Expectation = Reward Prediction Error (RPE) • DA neuron firing RPE • No RPE = No change • +RPE = ˄ DA (e.g. amazing Cake) • -RPE = ˅ DA (e.g. stale Cake) Introduction Behavior is governed when brain learns to predict consequence Reinforcement Learning Theory Negative Reinforcement • regulate behavior through actions which should be avoided (Aversive) • PE Pathway disputed. ________________ Are aversive stimuli also processed by DA neurons (single dimension) Or is there another neurotransmitter system at play (two dimensions) Focus ________________ Methods Using 195 DA neurons from two Rhesus Macaque monkeys Neurons were recorded using a recording electrode ...
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