Test #2 Review #1 - Lecture #10 How thinking involves...

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Lecture #10 How thinking involves working memory o Raven’s progressive matrices—a set of tasks going from easy to difficult Ability to complete tasks is a measurement of your working memory ability Matrix at top with different shapes Task=figure out which figure will fit in the blank at the bottom You need to figure out the rules that determine which shapes go in which place o Mental arithmetic—demands on long term and short term memory Long term—rules and facts that you have learned You apply long term using short term Storage buffer—information that you are holding on to Hold onto to number from first column while solving 2 nd column Executive processes—transformations on the information that you apply to the information in storage buffer using the facts in long term memory Interference—have someone do a task that requires working memory while that are doing some task that requires thinking o Random number generation—have to solve a logic problem while also having to come up with a stream of random numbers To keep this random, you have told hold in mind (storage buffer) what numbers you have already said Interferes with reasoning o Reading Comprehension—need to be able to hold the various parts of a paragraph in working memory to comprehend Individual differences in working memory—measure of working memory ability predict a lot about how well a person is able to do on various kinds of thinking tasks Evidence for WM/LTM distinction—are there two separate parts of memory o Anterograde amnesia—can’t remember events occurring after brain injury; can’t learn new information o Serial Position Curve—listen to 15 words and then write them down after in any order Remember words at beginning and end best Primacy—tendency for words at the beginning to be recalled better than words in the middle Result of the words being encoded into LTM Recency—tendency for words at the end to be recalled better than words in the middle Due to WM; words are still active Give a 30 second delay (do some kind of math during time) still see primacy effect, but no recency effect
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Rate of presentation—affects the primacy effect without affecting recency; faster presentation decreases primacy effect Double dissociation—Impaired LTM but working WM compared with opposite o Establishes that there are two separate systems o Patients have damages in separate areas o Behavioral studies—bring healthy students in and test them Serial position curve Model of Working Memory—3 parts o Phonological loop—system for holding acoustic information Phonological short term store—where we hold onto what information sounds like Rehearsal process—keeps information fresh; repeating information to yourself Needs to keep fresh because information decays after about 2 seconds (subvocal) Information can enter through direct auditory code (person talking
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Test #2 Review #1 - Lecture #10 How thinking involves...

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