Abstract：
:Previous studies have suggested that ethanol exposure during brain development affects responses to fear and anxiety after maturity. To clarify in detail the impaired behavior related to fear and anxiety seen in rat offspring prenatally exposed to ethanol, their behaviors were observed using an elevated T-maze (ETM) test, which allows assessment of passive avoidance acquisition and one-way escape separately, and an elevated open platform (EOP) test for the assessment of unconditioned freezing against innate fear. The ETM test revealed that acquisition of passive avoidance was significantly inhibited in prenatally ethanol-exposed rats, while their escape behavior was not altered. In the EOP test, the duration of the freezing behavior was significantly elongated in prenatally ethanol-exposed offspring. Thus, we concluded that prenatal ethanol exposure could impair acquisition of passive avoidance, while it could facilitate a response related to unconditioned fears in rat offspring.
journal_name
Behav Brain Resjournal_title
Behavioural brain researchauthors
Ohta K,Sakata-Haga H,Fukui Ydoi
10.1016/j.bbr.2012.07.001subject
Has Abstractpub_date
2012-10-01 00:00:00pages
255-8issue
2eissn
0166-4328issn
1872-7549pii
S0166-4328(12)00449-4journal_volume
234pub_type
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