Lecture 5

Lecture 5 - Lecture 2/4/08 Learning and Memory the story of...

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Unformatted text preview: Lecture 2/4/08 Learning and Memory the story of H.M. Patient HM (1950) Severe epilepsy following bike accident Bilateral medial temporal lobes removed @ age 27 Included hippocampus and amygdale and surrounding cortex Special because of extensive testing prior to surgery Seizures reduced Intelligence, personality intact But severe memory problem Memory System Definition: short term memory (STM) o Fleeting seconds to minutes o 7 +/- 2 chunks of info o Need to rehearse (remember phone # long enough to dial it) o Tests: digit span, Phone number o Working memory = processing info (test would be backward digit span) H.M. STM ok (when not distracted) but can not form new LTM Mild retrograde amnesia: cant remember 2 years before surgery but can remember childhood Severe retrograde amnesia: cant form LTM for events after surery o Cant remember where he is, what he ate for breakfast, psychologists who have tested hi for the past few decades. Could show improvement on some tasks (LTM without conscious recollection of tasks) Implicit memory tasks(memory u cant explicitly explain that you learned it) o Mirror drawing: use mirror to trace an object o Rotary pursuit: keep a pen in the same spot on turning disk o Priming tests: incomplete pictures and repetition priming....
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This note was uploaded on 04/07/2008 for the course PSYC 2 taught by Professor Wilson during the Spring '08 term at UCSD.

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Lecture 5 - Lecture 2/4/08 Learning and Memory the story of...

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