Abstract:
:The effects of pinealectomy on locomotor behavior responses to cold, heat or pain were assessed in freely moving rats. External cold (4 degrees C) or heat (36 degrees C) stress produced increases of locomotion (including horizontal and vertical movement, and total distance traveled), increases of number of turnings (including both clockwise and counterclockwise), and decreases of postural freezing in rats. In addition, pain (produced by intradermal injection of normal saline) was also shown to produce increases of locomotion (including horizontal and vertical movement, and total distance traveled) and decreases of postural freezing in rats. The increases of locomotion (including horizontal and vertical movement, and total distance traveled), as well as the decreases of postural freezing induced by either cold or pain, were attenuated by pretreatment of animals with pinealectomy. The heat-induced increases of vertical movement as well as the decreases of postural freezing were also attenuated by pinealectomy. The results indicate that these nonphotic, stress-provoking stimuli act through the pineal gland to induce escape behaviors to try to get out of the stressed conditions in rats.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Chuang JI,Lin MTdoi
10.1016/0031-9384(94)90120-1subject
Has Abstractpub_date
1994-03-01 00:00:00pages
583-6issue
3eissn
0031-9384issn
1873-507Xpii
0031-9384(94)90120-1journal_volume
55pub_type
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journal_title:Physiology & behavior
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journal_title:Physiology & behavior
pub_type: 杂志文章
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