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10.1_Serial+Learning - EvolutionofLearning Memory2:Operant...

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Evolution of Learning &  Memory 2: Operant  Conditioning
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Two Kinds of Conditioning Classical Conditioning (Modulation of  reflexes) Contingent CS – UCS pairing results in CS  eliciting response. Is not voluntary action Tone – air puff pairing Operant Conditioning    (Learning) Reward increases likelihood of action Is voluntary action Bar press to obtain food or water
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Response versus Place  Learning Controversy What does a rat learn who learns to run  a maze? A sequence of actions, turn-left, turn-right,  etc. A mental map of the maze that guides his  actions
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Habit versus Instrumental  Learning of a Maze Instrumental Learning  (Hippocampus) Rat learns a mental map that guides  actions Early declarative stage Habit Learning  (Striatum) Rat learns a sequence of actions, turn left,  turn right etc. Later autonomous stage
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Predictions for T-Maze  (McGaugh et al.) After week of practice  turning right in T-Maze  center bar is flipped. Habit learning predicts  rat will still turn right and  miss reward. Instrumental learning  predicts that rat will now  turn left and find  reward.
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