Psy 123_Lec 11 Memory

Problem with calling it short term memory is that you

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Unformatted text preview: em with calling it short term memory, is that you can hold onto that info for as long as you want (for example sit, and think the same recurring thought for an hour), and thus it is still working memory. It just that as soon as you let that info go, it is out of working memory. Likewise, long-term memory for retreival does not mean the info is remembered over a long period of time b/c you could forget something that you had just had in your working memory a few moments ago. 2 8 7 6 3 7 4! 4 6 1 9 5 7 3 4 8! So just to give an example of working memory, keep track of the numbers on the screen. Chunking into meaningful units can help increase working memory. WM has limited capacity, its all about keeping info online for a short period of time. Baddeley’s Working Memory Model! Bradeley's Model: Central executive somewhere in the brain which is managing the information, and 2 storage unit. Phonological loop is just repeating verbal info to yourself over and over again. Visuospatial sketchpad is using imagery to keep track of the info. Both keep info in the mind for a short period of time so you can manipulate it or use it senstive to the storage of things over a delay period. Single cell recording in the PFC Dark bands are when the stimulus comes on, and then when it goes off the screen, the period after is the delayed period. And 2nd bar is when the monkey has to respond. When you record from different parts of the cell, the neuron becomes active when the stimulus is up, and then inactive in delay period, and then active when you need to respond. The PFC neuron however, stays on during that delay period and stays on just as strongly as when the stimulus is still up on the screen. And so it is thought that that neuron is responsible for keeping track of the event that just occurred.The PFC is basically our key area for working memory. Cell recordings from monkeys! Neuroimaging studies from humans! Theory of Multiple Memory Systems! Memory is not a single brain system, but multiple systems with different psychological functions and different underlying brain structures.! Procedural...
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This note was uploaded on 01/18/2014 for the course PSY 123 taught by Professor Staff during the Fall '11 term at UCSB.

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