CONSTRUCT-VALIDATION OF BEHAVIORAL INDEXES OF ISOLATION STRESS AND INFLAMMATORY NOCICEPTION IN YOUNG DOMESTIC-FOWL

被引:39
作者
SUFKA, KJ [1 ]
WEED, NC [1 ]
机构
[1] UNIV MISSISSIPPI, DEPT PSYCHOL, OXFORD, MS 38677 USA
关键词
DOMESTIC FOWL; CHICKS; ISOLATION STRESS; SOCIAL SEPARATION; PAIN; INFLAMMATORY NOCICEPTION; FORMALIN TEST; VOCALIZATIONS; THERMOREGULATION; VENTRAL RECUMBENCY; HYPOALGESIA; CONSTRUCT VALIDATION;
D O I
10.1016/0031-9384(94)90054-X
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Isolation from conspecifics can elicit a variety of behavioral responses in young domestic fowl that include increased vocalizations (VOC), ventral recumbency posturing (VRP), hypoalgesia, and hyperthermia. During tests of acute inflammatory nociception, chicks not only display several pain-related behaviors (i.e., footpecks and lifts), but also VOC and VRP. However, systematic evaluation of whether these behaviors reflect converging indices of stress and nociception remains to be conducted. In two separate experiments, 7-day-old chicks received intraplantar formalin (0.05%) or saline (0.05 ml) and were placed in sound-attenuating chambers with or without two conspecifics for a 3 min observation period. The following measures were recorded: VOC, footlift frequency (LFT), and duration (DUR, Experiment 2 only), pecks (PKS), ventral recumbency latency (VRL), body temperature (BTMP), and body weight (WGT). Principal component analyses revealed the presence of two oblique and nonmonotonically related components, one consisting of pain-related measures (i.e., LFT, DUR, and PKS) and the other consisting of stress-related measures (VOC, VRL, and BTMP). A third component, consisting of BTMP and WGT ostensibly reflects maturational variability in thermoregulatory capability. These findings support the construct validity of these behavioral indices of isolation stress and inflammatory nociception and are consistent with the notion of stress effects on nociceptive processing.
引用
收藏
页码:741 / 746
页数:6
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