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Study Giude 2

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Department
Psychology
Course
PSYC 4072
Professor
All Professors
Semester
Winter

Description
Psy 4072 Study GuideTopicInformation Processing AttentionMemoryChapter 6Information processing perspective regarding the cognitive functioning of humans as comparable to the functioning of computers the data from experiences enters the brain through various sensory routes where they progress like stages on analysis Psychomotor speed the amount of time it takes to process a signal prepare a response and then execute that response reflects the integrity of the CNS measured by reaction timegeneral slowing hypothesisthe increase in reaction time reflects a general decline of information processing speed within the nervous system of the aging individual age complexity hypothesisthrough slowing of central processes in the nervous system age differences increase as tasks become more complex and processing resources are stretched more and more to their limit Brinley plotgraph in which reaction times of older adults are plotted against reaction times of younger adultstheories of attention1 Attentional resources theoryaging reduces available cognitive resources2 Inhibitory deficitAging reduces ability to tune out irrelevant info3 Context processingAging reduces the ability to take context into accountdriving and aging teens 1619 are 4 times more likely to crash than someone over 65 they compensate for cognitive deficitsselectivity capacity and vigilance aspects of attention attentionability to focus or concentrate on a portion of experience while ignoring otherfeatures of that experienceto be able to shift that focus as demanded by the situation and to be able to coordinate info from multiple sourcestypes of attentional tasks dual taskdivided attentiongiven info from two input sources and must attend to both sources at once to identify target older people compensate for their attentional deficits under multitasking by shifting activations ofregions of thebrain involved in attentional processingsustained attentionrequires participants to be on guard for change instimulus array old people have more problems with these tasksinhibitory taskindividual must deliberately suppress one response inorder to perform another purpose is to see if older people are able toignore irrelevant aspects of a stimulus ex Stroop test selectivityinfo processing is inherently limited we select some info at the expense of
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