Attention orienting in a spatial and a nonspatial task by healthy young and elderly subjects and by Alzheimer's disease patients

J. Y. Chen, M. C. Pai, J. J. Tsai, M. L. Lai

研究成果: 雜誌貢獻文章同行評審

摘要

Attention orienting in a spatial (the Posner type) and a nonspatial (the Stroop type) task was examined in healthy young, healthy elderly, and patients with Alzheimer's disease (AD). The designs of the two tasks were comparable in terms of cue type, cue validity, and cue-to-target SOA. The effect sizes (Hedge's g) derived from the cost-plus-benefit measures of cue validity were used in the comparisons between tasks and among subject groups. The results: (1) aging and AD affected voluntary orienting by delaying the time by which the orienting effect developed to a reliable level and by depressing the extent of the effect, (2) aging and AD influenced involuntary orienting by delaying the time by which the orienting effect developed to a reliable level, by depressing the extent of the effect, and by reducing subjects ability to maintain the orienting effect, and (3) the effect of aging and AD on voluntary orienting tended to be for the nonspatial task than the spatial task, whereas their effect on involuntary orienting tended to be greater for the spatial task than the nonspatial task. It is suggested that spatial and nonspatial attention orienting are functionally similar, but may have different neuroanatomical substrates.

原文英語
頁(從 - 到)36-40
頁數5
期刊Brain and Cognition
39
發行號1
出版狀態已發佈 - 1999 十二月 1

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Developmental and Educational Psychology
  • Arts and Humanities (miscellaneous)
  • Cognitive Neuroscience

指紋 深入研究「Attention orienting in a spatial and a nonspatial task by healthy young and elderly subjects and by Alzheimer's disease patients」主題。共同形成了獨特的指紋。

引用此