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The Effects of Aging on Lexical Access

dc.contributor.advisorFaroqi-Shah, Yasmeenen_US
dc.contributor.authorTower, Kathryn Rachelen_US
dc.date.accessioned2011-10-08T06:19:58Z
dc.date.available2011-10-08T06:19:58Z
dc.date.issued2011en_US
dc.identifier.urihttp://hdl.handle.net/1903/12024
dc.description.abstractAs the U.S. population ages, the need to understand how language changes with age becomes more important. Difficulty with word retrieval is one of the most notable changes as individuals age (Burke & Shafto, 2004); however, theoretical models of aging disagree on the cause. Two prominent theories are the impaired lexical access hypothesis and the general slowing theory. The present study aimed to explore these two ideas using magnetoencephalography (MEG). A young adult group (N=17, mean age 20.6 years) and an older adult group (N=9, mean age =64.6 years) participated in a lexical decision task using verbs. MEG latency data corresponding to lexical access found no between-group difference. Behavioral response times were significantly slower in the older group. Results point either to the idea that linguistic difficulties experienced by older individuals are the result of reduced abilities in phonological or motor processing, or that while lexical representations remain intact, the connections between them become less efficient with age.en_US
dc.titleThe Effects of Aging on Lexical Accessen_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentHearing and Speech Sciencesen_US
dc.subject.pqcontrolledAgingen_US
dc.subject.pqcontrolledNeurosciencesen_US
dc.subject.pqcontrolledSpeech therapyen_US
dc.subject.pquncontrolledAgingen_US
dc.subject.pquncontrolledLexical Accessen_US
dc.subject.pquncontrolledMEGen_US


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