Spatial orienting of attention in adult and aged rhesus monkeys

被引:25
作者
Baxter, MG
Voytko, ML
机构
[1] WAKE FOREST UNIV,BOWMAN GRAY SCH MED,DEPT COMPARAT MED,WINSTON SALEM,NC 27157
[2] UNIV N CAROLINA,CURRICULUM NEUROBIOL,CHAPEL HILL,NC 27515
关键词
D O I
10.1037/0735-7044.110.5.898
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
Aging produces changes in a variety of neural systems that result in a distinct neuropsychological profile of cognitive deficits. To determine the extent of functional decline in cognition with aging, the authors assessed attentional ability in adult (10-15 years old) and aged (28-33 years old) rhesus monkeys (Macaca mulatta) in 3 experiments, using a paradigm adapted from M. I. Posner, J. A. Walker. F. J. Friedrich, and R. D. Rafal (1984), in which a peripheral cue indicates the probable location of a target. Orienting of attention was not disrupted in aged monkeys. Response times of aged monkeys were comparable with adult monkeys' both in the attention task and in a simple reaction time task. These results suggest that the neural systems that subserve spatial orienting of attention remain intact in aged nonhuman primates.
引用
收藏
页码:898 / 904
页数:7
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