01.26 lec notes - -category loosening in mirror...

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01.26.10 Mirror neurons -Premotor cortex choreographs actions -Trained monkeys to do actions, like eat a banana, and looked at what was fired while they were doing the actions. It clicked when neurons fired. But it also clicked when the monkey watched someone eat a banana. -Firing in doing is paired with firing in seeing so there is eventually a pair -Mirror neurons fire less when you're watching the action -Inborn capacity for empathy -In order to perform an action you need a circuitry(executing schema), however they only record cells, not circuits Three classes of neurons: -Motor General Purpose Neurons: -Area F5 -Grasping (same neuron, with different parameters, was fired when grasping with mouth and hands) -cats have three ways of moving → walking, trotting, galloping (three parameter neurons) depending on how strong they are firing maps to how they move -Visuo-Motor Neurons: -canonical neurons -mirror neurons -F5 -only 30% are strictly congruent mirror neurons
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Unformatted text preview: -category loosening in mirror neurons (~60%)-stages of the action in the same neuron (slide 35 of 92)-individual neurons can join a group of neurons depending on what the group is doing-PF mirror neurons: recording of the monkey watching the experimenter doing the action-During mimicking (not actually grasping an object) nothing is fired-F5 Audio-Visual Mirror Neurons: trained monkey to grasp a ring, rip a paper break a peanut → group as a whole is doing something different than the individual neurons-primary motor cortex has a map of the body and lights up when imagining doing something like kicking How do mirror neurons work? By simulation You have to be able to simulate the action in your brain to be able to do the action Mirror Neurons achieve:-Partial Universality : they allow you to distinguish between actions and agents (the dance from the dancer)...
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