Abstract:
:The present experiment investigated the effects of exposure to inescapable shocks (IS) on subsequent behavior in an elevated plus-maze and on shuttlebox-escape performance in male and female rats. In the elevated plus-maze, exposure to IS resulted in suppression of "total number of arm entries" and "rearings" in males but not in females. In addition "time on open arms" was reduced in both sexes after exposure to IS, but this effect seemed stronger in males than in females. Exposure to IS disrupted shuttlebox-escape performance of males, whereas escape performance of females was unaffected. Affected escape performance in males was transient and limited to the initial phase of escape training. A sex difference in emotional reaction to stress might contribute to the observed sex difference in the acquisition of an escape response. The strong passive avoidance tendency observed in males, which may be strengthened by IS, strongly interferes with the acquisition of the escape response by this sex, resulting in sex differences in susceptibility to behavioral disturbances induced by IS.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Steenbergen HL,Heinsbroek RP,Van Hest A,Van de Poll NEdoi
10.1016/0031-9384(90)90302-ksubject
Has Abstractpub_date
1990-10-01 00:00:00pages
571-6issue
4eissn
0031-9384issn
1873-507Xpii
0031-9384(90)90302-Kjournal_volume
48pub_type
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pub_type: 临床试验,杂志文章
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pub_type: 临床试验,杂志文章
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journal_title:Physiology & behavior
pub_type: 杂志文章
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