lecture02

lecture02 - Brief History of Work in the area of Learning...

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Brief History of Work in the area of Learning and Memory • Basic Questions • how does memory work • are there different kinds of memory • what is their logic • where in the brain do we learn • where do we store what is learned as memory • can memory storage be resolved at the level of individual nerve cells
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What is Learning and what is Memory? A Definition • Learning is an adaptive change in behavior resulting from experience.
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From this, the early behaviorists black-box view can be seen as Experience ---------- Æ behavior 1 ---------- Æ behavior 2 ---------- Æ behavior 3 INPUT BLACKBOX OUTPUT in which selection is based on consequence (e.g. reinforcement, Skinner). •In non-associative learning, the adaptive advantage is already established. •In more associative learning the extent of adaptive advantage must be evaluated.
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Further refinement of this model in a reductionist direction can be described as Experience - Æ neural activity - Æ neural output pattern 1 - Æ behavior 1 - Æ neural output pattern 2 - Æ behavior 2 - Æ neural output pattern 3 - Æ behavior 3 INPUT BLACKBOX OUTPUT In which selection of neural patterns is based on consequence (e.g. reinforcement, Hebb)
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But what does filling in the black box buy us? • In 1968 Marvin Minsky and Seymour Papert published the book Perceptrons challenging the notion that simple linear classifiers (A -> C, A + B -> C) were sufficient to solve general pattern
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lecture02 - Brief History of Work in the area of Learning...

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