Lecture 11 - Feb 10

Lecture 11 - Feb 10 - Memory Systems...

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Memory Systems Midterm next Thursday **know your room, seat, TA, group # Review session next Tuesday material) Conferences M/W Ch 5-6 WebCT chat sessions 6-10pm Wednesday When we learn about experiments, there is usually a name associated with a concept, but it’s important to know different people have diff views and findings. How do names connect with different results? Last Week in WebCT -Memory schemas -Ambiguous vs. non-ambiguous memories -if people don’t understand the story on it’s own, it’s hard to remember, so people need to put it into a context Overview -Memory systems -Long-term memory (LTM) -Memory disorders (amnesias) -Exam info and example questions Memory Processes There are 3 general memory systems: Sensory memory - Order of seconds Short-term memory - Seconds to minutes Long-term memory - Minutes to years When talking about memory, we usually think about LTM because it’s all types of info that we remember for a long amount of time. Long-term Memory (LTM) -Holds information that is retained for a long period of time. -Large capacity -Holds information for years -retains information for a longer period of time than sensory and STM, but it can hold it for a short time as well -Some content of LTM is available to conscious recall Major distinction: Explicit (declarative) vs. Implicit (non-declarative) memory -memories we can verbally express vs. memories we cannot Explicit Memory -Tightly coupled with language -Its memory that we can consciously recall and express with language
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Endel Tulving: Semantic and Episodic memory Semantic -> general facts How to tell time, how to subtract numbers, etc Episodic -> memory for specific events in our life (autobiographical memory) Us, and what we do. What was your grad like? Semantic and Episodic memory dissociate in the brain (2 diff mechanisms that contribute to these 2 types of LTM) Patient KC-severe amnesia for episodic information, but not for general semantic information Similarly to HM, KC also has anterograde amnesia (you cannot form LTM) -semantic knowledge is intact (knows how to speak, etc), but he doesn’t know -failed to remember people he worked with, where he worked, but he remembered his work and what he dealt with (tools, etc) How to study it in the lab? Recall vs. Recognition
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Lecture 11 - Feb 10 - Memory Systems...

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