Abstract：
:This experiment evaluated the effects of forebrain norepinephrine (NE) and serotonin depletion on the unconditioned stimulus (US) pre-exposure phenomenon. Rats with either dorsal bundle lesions, raphe lesions, or which served as vehicle controls were assigned to one of two training conditions. One-half of the animals in the 3 lesion groups received 30 episodes of a stimulus which later served as the US. The remaining rats experienced standard conditioning of CS-US pairing without US pre-exposure. The results indicate that while raphe-lesioned and vehicular rats exhibited the US pre-exposure effect, conditioning was unimpaired in NE-depleted rats following pre-exposure. These findings are consistent with a contextual blocking interpretation of the US pre-exposure effect.
journal_name
Behav Brain Resjournal_title
Behavioural brain researchauthors
Rickert EJ,Lorden JFdoi
10.1016/s0166-4328(89)80115-9subject
Has Abstractpub_date
1989-11-01 00:00:00pages
147-52issue
2eissn
0166-4328issn
1872-7549pii
S0166-4328(89)80115-9journal_volume
35pub_type
杂志文章abstract：:The early detection of minor brain dysfunctions resulting from perinatal hypoxia is very important since the prognosis of the affected children can be substantially improved by a prompt treatment. Therefore, this paper deals with the influence of an early postnatal hypoxia on the postnatal development of spontaneous h...
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journal_title：Behavioural brain research
pub_type： 杂志文章,评审
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journal_title：Behavioural brain research
pub_type： 杂志文章
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pub_type： 杂志文章
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更新日期：2016-08-01 00:00:00
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journal_title：Behavioural brain research
pub_type： 杂志文章
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journal_title：Behavioural brain research
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journal_title：Behavioural brain research
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更新日期：2012-08-01 00:00:00
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journal_title：Behavioural brain research
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更新日期：2015-01-15 00:00:00
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