Mice genetically depleted of brain serotonin display social impairments, communication deficits and repetitive behaviors: possible relevance to autism.

While each group also shows significant dishabituation (p<0.0001, Tukey's test for both genotypes), manifested as increased sniffing to a novel olfactory probe (vanilla extract) as compared to the last habituation trial, the main effect of genotype was not significantly significant (F 1,5 = 0.39, p>0.05).

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