Effects of age and Alzheimer's disease on recognition of gated spoken words

Author(s): Duke, L. W., Walley, A. C.

Journal/Book: J Speech Hear Res. 1996; 39: 10801 Rockville Pike Rd, Rockville, MD 20852-3279. Amer Speech-Lang-Hearing Assn. 724-733.

Abstract: This study investigated the effects of normal aging and Alzheimer's disease on listeners' ability to recognize gated spoken words. Groups of healthy young adults, healthy older adults, and adults with Alzheimer's disease were presented isolated gated spoken words. Theoretical predictions of the Cohort model of spoken word recognition (Marlsen-Wilson, 1984) were tested, employing both between-group and within-group comparisons. The findings for the young adults supported the Cohort model's predictions. The findings for the older adult groups revealed different effects for age and disease. These results are interpreted in relation to the theoretical predictions, the findings of previous gating studies, and differentiating age from disease-related changes in spoken word recognition.

Note: Article NB Marshall, Commun Concepts & Consulting Inc, 234 Aquarius Dr, Suite 116, Homewood, AL 35209 USA

Keyword(s): speech recognition; gating paradigm; Alzheimer's disease; older adults; lexical access; SPEECH-PERCEPTION; ELDERLY LISTENERS; COGNITIVE-FACTORS; ADULTS; PERFORMANCE; CHILDREN; DEMENTIA; YOUNG; TASK

Zurück | Weiter