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Lecture 7

PSY372 Lecture 7 & 8 (March 19, 2014).docx

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Christina Gojmerac

PSY372 Lecture 7 & 8 - Title o Reconstructive processes of memory o Not video recorder; more creative - Source memory o Where learning had first taken place; different features of the memory o Ex. Capital of France; reading from encyclopedia or someone told you that in grade 5 o Spatial and temporal context - 2 o Attribute and judgement to the origin of the memory o Automatic: quickly retrieve o Controlled: engage in more slow controlled processing before deciding on the source - Reality monitoring o What’s happening on the outside vs. inside o What you’re thinking and what’s going on in your environment o What you thought and what you said out loud o Schizophrenia: people have difficulty determining internal vs. external source - Cryptomnesia: memory bias o Have amnesia where they came up with some idea o They thought they generated a fact, but someone else did; absorbing information but not conceptualizing it and coming up with where the source comes from - 2 o Many subjects claimed they were producing items that someone else in the group did o Plagiarized people who went before them more often than those who plagiarized afterwards o People were generating ideas while their turn came and they paid less attention to the prior person because it becomes blur into their thinking process - Role of the frontal lobes o Heavily involved in judgment and process o People who are healthy could say where they got the info from o People with frontal lobe lesions had no problem with the fact, but had difficulty with the source of the info of where they learned it - 2 o Differential impact on the brain o Not changes due to dementia o Deterioration starts in frontal lobe in age related situations o Older adults have difficulty in source memory - 3 o High functioning vs. low functioning adults o Low functioning adults have low source memory; just above chance o Significant difference is based on the source; the memory task was not as significant but the high functioning adults still performed better - 4 o Temporal lobe task o People with worst temporal lobe performed worst on item memory; but no big difference between the two groups and their source memory o More hippocampal memory for remembering things - Recognition memory o Something that we saw before or something that is new o When we remember something, we are recollecting it - 2 o Recognition is correctly deciding whether the target is the one you saw in the correct context - 3 o Separate what’s truly a memory or subject bias o Judgment bias: Some people have liberal criteria, they might say yes more often; if they have a conservative criteria, they might say no more often if they’re not sure - 4 o Separating auditory signal or background noise o Easy if background noise is quieter - 5 o Accuracy will depend if signal is presented and the participant’s response - 6 o Different memory traces have different strength values and will dictate how familiar it is to you - 7 o Everything more familiar, will be judged old - 8 o Liberal guesses will be shifted to the left, but more false alarms
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