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 Preserved and deficient calculation processes in Alzheimers disease and mild cognitive impairment.


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Type of Resource: text

Genre: Electronic Thesis or Dissertation

Date Issued: 2013

Publisher: Florida Atlantic University

Physical Form: electronic

Extent: x, 153 p. : ill.

Language(s): English

Summary: Two skills necessary for the execution of proficient calculation, retrieving arithmetic facts from memory and accessing number magnitude information, were studied in a group of patients diagnosed with Alzheimer's disease (AD), mild cognitive impairment (MCI), and healthy controls to try to elucidate the locus of impairment in AD-related calculation deficits. This was achieved through the use of an arithmetic production task and a number-matching task as measures of explicit and implicit retrieval of arithmetic facts, and a numerical Stroop task that assesses automatic access to number magnitude representation. AD patients, but not MCI patients, showed high response latencies and a high number of errors when performing multiplications in the production task, and reduced automatic retrieval of arithmetic task in the number-matching task. All participants showed the classic problem-size effect often reported in the mathematical cognition literature. Performance on the numerical Stroop task suggests that access to number magnitude information is relatively resistant to cognitive impairment.

. Results for the AD group are consistent with a pattern of preserved and impaired cognitive processes that might mediate the reported calculation deficits in AD.

Identifier: 859865893 (oclc), 3362384 (digitool), FADT3362384 (IID), fau:4190 (fedora)

Note(s): by Marâia Beatriz Jurado Noboa.Thesis (Ph.D.)--Florida Atlantic University, 2013.Includes bibliography.Mode of access: World Wide Web.System requirements: Adobe Reader.

Subject(s): Aging -- Psychological aspectsCognitive psychologyMemory disorders in old ageAlzheimer's disease -- DiagnosisContext effects (Psychology)

Persistent Link to This Record: http://purl.flvc.org/fcla/dt/3362384

Owner Institution: FAU



Author: Jurado Noboa, Marâia Beatriz.

Source: http://fau.digital.flvc.org/islandora/object/fau%3A4190



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