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Titolo:
Effects of aging and gender on interhemispheric function
Autore:
Bellis, TJ; Wilber, LA;
Indirizzi:
Univ S Dakota, Dept Commun Disorders, Vermillion, SD 57069 USA Univ S Dakota Vermillion SD USA 57069 Disorders, Vermillion, SD 57069 USA Northwestern Univ, Dept Commun Sci & Disorders, Evanston, IL USA Northwestern Univ Evanston IL USA mmun Sci & Disorders, Evanston, IL USA
Titolo Testata:
JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH
fascicolo: 2, volume: 44, anno: 2001,
pagine: 246 - 263
SICI:
1092-4388(200104)44:2<246:EOAAGO>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN CORPUS-CALLOSUM; HEMISPHERIC-ASYMMETRY; CEREBRAL HEMISPHERES; SUSTAINED ATTENTION; COMMISSUROTOMY; AGE; LATERALIZATION; HANDEDNESS; CAPACITY; AGENESIS;
Keywords:
aging; corpus callosum; dichotic listening; interhemispheric; auditory processing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
75
Recensione:
Indirizzi per estratti:
Indirizzo: Bellis, TJ Univ S Dakota, Dept Commun Disorders, 414 E Clark St, Vermillion, SD 57069USA Univ S Dakota 414 E Clark St Vermillion SD USA 57069 D 57069USA
Citazione:
T.J. Bellis e L.A. Wilber, "Effects of aging and gender on interhemispheric function", J SPEECH L, 44(2), 2001, pp. 246-263

Abstract

The ability of the two hemispheres of the brain to communicate with one another via the corpus callosum is important for a wide variety of sensory, motor, and cognitive functions, many of them communication related. Anatomical evidence suggests that aging results in structural changes in the corpuscallosum and that the course over time of age-related changes in corpus callosum structure may depend on the gender of the individual. Further, it has been hypothesized that age- and gender-related changes In corpus callosumstructure may result in concomitant decreased performance on tasks that are reliant on interhemispheric integrity. the purpose of this study was to investigate the effects of age and gender on auditory behavioral and visuomotor temporal indices of interhemispheric function across the life span of the normal adult. Results from 120 consistently right-handed adults From age20 to 75 years revealed that interhemispheric integrity, as measured by dichotic listening, auditory temporal patterning, and visuomotor interhemispheric transfer time tasks, decreases relatively early in the adult life span(i.e., between the ages of 40 and 55 years) and shows no further decrease thereafter In addition, the course over time of interhemispheric decline isdifferent for men compared to women for some tasks. These findings suggestthat decreased interhemispheric function may be a possible factor contributing to auditory and communication difficulties experienced by aging adults. In addition, results of this study hold implications for the clinical assessment of interhemispheric function in aging adults and for future research into the functional ramifications of decreased multimodality interhemispheric transfer.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/01/20 alle ore 01:01:22