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Effects Of Neonatal Handling On Play And Anxiety In F344 And Lewis Rats, Stephen M. Siviy
Effects Of Neonatal Handling On Play And Anxiety In F344 And Lewis Rats, Stephen M. Siviy
Psychology Faculty Publications
Play is an important part of normal childhood development and seen in many mammals, including rats. To better understand the interplay between genotype and postnatal experiences, the effects of neonatal handling on play were assessed in Lewis (LEW) and Fischer 344 (F344) rats. Handled litters experienced brief periods of separation during the first two postnatal weeks. F344 rats were less likely to direct nape contacts toward an untreated Sprague–Dawley (SD) partner and less likely to rotate to a supine position in response to a nape contact. When compared to rats from control litters, handled LEW, and F344 rats were more …