Rosellini R A, Widman D R
Department of Psychology, State University of New York, Albany 12222.
J Comp Psychol. 1989 Dec;103(4):339-46. doi: 10.1037/0735-7036.103.4.339.
Although a large literature has documented the varied effects of stress on an organism, relatively little attention has been devoted to investigating stress effects in ecologically relevant situations. Our experiment was conducted to assess the effects of stress on rats' (Rattus norvegicus) exploration of novel objects in a seminaturalistic and familiar environment that is relatively free of the constraints that have been placed on rats in prior investigations of stress. The results show that prior exposure to stress decreased the rats' diversity of exploration but did not affect general activity in comparison with animals not exposed to stress. We propose that the effect of stress on the qualitative aspects of exploratory behavior may be due to effects on organisms' sensitivity to predation.
尽管大量文献记录了压力对生物体的各种影响，但相对较少关注在生态相关情境中研究压力的影响。我们进行了一项实验，以评估压力对大鼠（褐家鼠）在半自然且熟悉环境中探索新物体的影响，该环境相对没有先前压力研究中施加在大鼠身上的限制。结果表明，与未暴露于压力的动物相比，先前暴露于压力会降低大鼠探索的多样性，但不影响其总体活动。我们认为，压力对探索行为定性方面的影响可能是由于对生物体捕食敏感性的影响。
