Inhibitory processes relate differently to balance/reaction time dual tasks in young and older adults.
Neuropsychol Dev Cogn B Aging Neuropsychol Cogn
; 17(1): 1-18, 2010 Jan.
Article
em En
| MEDLINE
| ID: mdl-19526388
ABSTRACT
Inhibitory processes have been suggested to be involved in maintaining balance in older adults, specifically in the integration of sensory information. This study investigated the association between inhibition and the ability to shift attention between auditory and visual modalities during a balance challenge. Young (21-35 years; n = 24) and older (70-85 years; n = 22) healthy subjects completed tasks assessing perceptual inhibition and motor inhibition. Subjects then performed dual-task paradigms pairing auditory and visual choice reaction time tasks with different postural conditions. Sensory channel switch cost was quantified as the difference between visual and auditory reaction times. Results showed that better perceptual and motor inhibition capabilities were associated with less sensory switch cost in the old (perceptual inhibition r = .51; motor inhibition r = .48). In the young, neither perceptual nor motor inhibition was associated with sensory switch cost. Inhibitory skills appear particularly important in the elderly for processing events from multiple sensory channels while maintaining balance.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Tempo de Reação
/
Atenção
/
Envelhecimento
/
Equilíbrio Postural
/
Função Executiva
Limite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Neuropsychol Dev Cogn B Aging Neuropsychol Cogn
Assunto da revista:
PSICOLOGIA
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Estados Unidos