Document Detail

Inhibition of visual and conceptual information during reading in healthy aging and Alzheimer's disease.
MedLine Citation:
PMID:  25233057     Owner:  NLM     Status:  In-Data-Review    
The present experiment examined the effect of distraction on reading ability and comprehension in healthy aging and early stage dementia of the Alzheimer type (DAT). A modified version of the reading task used by Connelly, Hasher, and Zacks (1991, Experiment 2) was employed. Healthy young, healthy old (60-79 years, and 80 years and over), very mild DAT, and mild DAT participants read passages aloud and then answered comprehension questions. There were four experimental conditions in which distracting information was embedded in the text: (control), orthographic (xxxxx), lexical (unrelated), and semantic (related). The results indicated that there was greater susceptibility to increasing levels of distraction with age and increasing dementia severity. Moreover, there was a substantial slowdown in reading time in mild DAT when text was used as distracting information, especially conceptually related text. Furthermore, mild DAT participants were more likely to make false alarms in comprehension performance (i.e., choose as an answer the incorrect response which contained the related distracting information). Thus, in early stage DAT, there appears to be increased difficulty inhibiting partially activated information, especially when it is related to the relevant information being processed.
J M Duchek; D A Balota; V C Thessing
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition     Volume:  5     ISSN:  1382-5585     ISO Abbreviation:  Neuropsychol Dev Cogn B Aging Neuropsychol Cogn     Publication Date:  1998 Sep 
Date Detail:
Created Date:  2014-09-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9614434     Medline TA:  Neuropsychol Dev Cogn B Aging Neuropsychol Cogn     Country:  United States    
Other Details:
Languages:  eng     Pagination:  169-81     Citation Subset:  -    
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