Age-dependent decline in locomotor activity in dogs is environment specific

被引：50
作者：
Siwak, CT
Murphey, HL
Muggenburg, BA
Milgram, NW
机构：
[1] Univ Toronto, Div Life Sci, Inst Med Sci, Scarborough, ON M1C 1A4, Canada
[2] Lovelace Resp Res Inst, Albuquerque, NM 87185 USA
来源：
PHYSIOLOGY & BEHAVIOR | 2002年 / 75卷 / 1-2期
基金：
加拿大自然科学与工程研究理事会;
关键词：
aging; locomotion; environmental context; animal model; dogs; open-field test;
D O I：
10.1016/S0031-9384(01)00632-1
中图分类号：
B84 [心理学];
学科分类号：
04 ; 0402 ;
摘要：
A decrease in motor activity is an expected concomitant of normal aging and has been reported in humans and nonhuman mammals. We have previously failed to find age differences in open-field locomotor activity in beagle dogs, We now report an age-associated decline when activity measures are taken in the home cage. Locomotor activity of young and aged dogs was examined in both open-field and home-cage environments. Dogs were given six activity tests (two open field, two morning and two afternoon home-cage tests) every second day. Aged dogs were less active than young dogs in the home cage but not in the open field. Activity also varied as a function of sex and housing condition. Behavioral activity is a complex manifestation of many underlying factors. (C) 2002 Elsevier Science Inc. All rights reserved.
引用
收藏
页码：65 / 70
页数：6
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