| 释义 |
stressor Psychol. and Biol.|ˈstrɛsə(r)|
[f. stress n., v.1 + -or.]
A single condition or agent that constitutes a stress for an organism (see stress n. 3 g).
1950H. Selye Physiol. & Path. of Exposure to Stress 9 The expression systemic stress is used here to denote a condition in which..extensive regions of the body deviate from their normal resting state. In accordance with the common usage of the word ‘stress’, the term ‘systemic stress’ is sometimes loosely employed also to denote the stimuli which cause systemic stress. In this sense, it is preferable however, to speak of alarming stimuli or ‘stressors’. 1958Proc. 10th Internat. Congr. Entomol. IV. 727 (heading) Crowding as a stressor [in insects]. 1962Lancet 27 Jan. 200/2 It has long been known that the response of schizophrenic patients to stressor agents is dulled. 1969Nature 4 Oct. 18/2 Stress results from a threat, real or apparent, to the biological integrity of the animal. More simply—a ‘stressor’ can be defined as any stimulus or situation which causes maladaptive behaviour. 1972C. M. Parkes Bereavement i. 4 Loss of a close relative is normally a major stressor. |