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Full-Text Articles in Psychology
Effects Of Pre-Pubertal Social Experiences On The Responsiveness Of Juvenile Rats To Predator Odors, Stephen M. Siviy
Effects Of Pre-Pubertal Social Experiences On The Responsiveness Of Juvenile Rats To Predator Odors, Stephen M. Siviy
Psychology Faculty Publications
The extent to which social variables may modulate the fear associated with a predator cue was assessed in juvenile rats. Cat odor reduced play to a comparable extent in both socially housed and isolate-housed rats, although socially housed rats exhibited more risk assessment during extinction. Rats that had played previously in the context used for assessing fear hid slightly less when exposed to cat odor than those rats that had not played previously in the testing context. However, no other differences were found between these two groups suggesting that prior social experience with the testing context has minimal effects on …
Effects Of Neonatal Handling On Play Behavior And Fear Towards A Predator Odor In Juvenile Rats, Stephen M. Siviy
Effects Of Neonatal Handling On Play Behavior And Fear Towards A Predator Odor In Juvenile Rats, Stephen M. Siviy
Psychology Faculty Publications
The effects of brief daily separation, also known as "handling," during the first 2 weeks of life on play behavior and fearfulness toward a predatory odor were assessed in juvenile rats. Handled rats were more playful than nonhandled control rats, and while handling had no effect on the direct response of these rats toward a predatory odor, handled rats did not exhibit a conditioned suppression of play when tested later in the same context where they had been exposed to the predatory odor. Handled rats were still wary of the environment in that they continued to show a heightened level …
Genome-Wide Identification Of Qtl For Age At Puberty In Gilts Using A Large Intercross F2 Population Between White Duroc And Erhualian, Guangcheng Yang, Jun Ren, Shijun Li, Huirong Mao, Yuanmei Guo, Zhengzhi Zou, Dongren Ren, Junwu Ma, Lusheng Huang
Genome-Wide Identification Of Qtl For Age At Puberty In Gilts Using A Large Intercross F2 Population Between White Duroc And Erhualian, Guangcheng Yang, Jun Ren, Shijun Li, Huirong Mao, Yuanmei Guo, Zhengzhi Zou, Dongren Ren, Junwu Ma, Lusheng Huang
Psychology Faculty Publications
Puberty is a fundamental development process experienced by all reproductively competent adults, yet the specific factors regulating age at puberty remain elusive in pigs. In this study, we performed a genome scan to identify quantitative trait loci (QTL) affecting age at puberty in gilts using a White Duroc × Erhualian intercross. A total of 183 microsatellites covering 19 porcine chromosomes were genotyped in 454 F2 gilts and their parents and grandparents in the White Duroc × Erhualian intercross. A linear regression method was used to map QTL for age at puberty via QTLexpress. One 1% genome-wise significant QTL and …