Abstract:
:Individuals with dementia of the Alzheimer type (DAT; n = 53, ages 55-91), healthy older adults (n = 75, ages 59-91), and younger adults (n = 24, ages 18-24) performed a word-primed picture-naming task. Word primes were neutral (ready), semantically or phonologically related, or unrelated to the correct picture name. AH groups produced equivalent unrelated-word interference and semantic priming effects in response latencies. However, analysis of errors revealed a DAT-related increase of phonological blocking. The results suggest that picture-naming errors in DAT are due, at least in part, to a breakdown in access to phonological representations of object names as a consequence of reduced inhibitory control over other highly active alternatives.
journal_name
Neuropsychologyjournal_title
Neuropsychologyauthors
Faust ME,Balota DA,Multhaup KSdoi
10.1037/0894-4105.18.3.526subject
Has Abstractpub_date
2004-07-01 00:00:00pages
526-36issue
3eissn
0894-4105issn
1931-1559pii
2004-16644-013journal_volume
18pub_type
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