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Full-Text Articles in Social and Behavioral Sciences
Basal Ganglia Involvement In The Playfulness Of Juvenile Rats, Stephen M. Siviy
Basal Ganglia Involvement In The Playfulness Of Juvenile Rats, Stephen M. Siviy
Psychology Faculty Publications
Play is an important part of normal childhood development and can be readily studied in the laboratory rat in the form of rough‐and‐tumble play. Given the robust nature of rough‐and‐tumble play, it has often been assumed that the basal ganglia would have a prominent role in modulating this behavior. Recent work using c‐fos expression as a metabolic marker for neural activity combined with temporary inactivation of relevant corticostriatal regions and pharmacological manipulations of opioid, cannabinoid, and dopamine systems has led to a better understanding of how basal ganglia circuitry may be involved in modulating social play in the juvenile rat. …
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 …
Effects Of Amphetamine On Striatal Dopamine Release, Open-Field Activity, And Play In Fischer 344 And Sprague–Dawley Rats, Stephen M. Siviy, Lana S. Mcdowell, Samantha R. Eck, Alexandra Turano, Garnik Akopian, John P. Walsh
Effects Of Amphetamine On Striatal Dopamine Release, Open-Field Activity, And Play In Fischer 344 And Sprague–Dawley Rats, Stephen M. Siviy, Lana S. Mcdowell, Samantha R. Eck, Alexandra Turano, Garnik Akopian, John P. Walsh
Psychology Faculty Publications
Previous work from our laboratories has shown that juvenile Fischer 344 (F344) rats are less playful than other strains and also appear to be compromised in dopamine (DA) functioning. To determine whether the dysfunctional play in this strain is associated with deficits in the handling and delivery of vesicular DA, the following experiments assessed the extent to which F344 rats are differentially sensitive to the effects of amphetamine. When exposed to amphetamine, striatal slices obtained from F344 rats showed a small increase in unstimulated DA release when compared with slices from Sprague–Dawley rats; they also showed a more rapid high …
Eye-Catching Odors: Olfaction Elicits Sustained Gazing To Faces And Eyes In 4-Month-Old Infants, Karine Durand, Jean-Yves Baudouin, David J. Lewkowicz, Nathalie Goubet, Benoist Schaal
Eye-Catching Odors: Olfaction Elicits Sustained Gazing To Faces And Eyes In 4-Month-Old Infants, Karine Durand, Jean-Yves Baudouin, David J. Lewkowicz, Nathalie Goubet, Benoist Schaal
Psychology Faculty Publications
This study investigated whether an odor can affect infants’ attention to visually presented objects and whether it can selectively direct visual gaze at visual targets as a function of their meaning. Four-month-old infants (n = 48) were exposed to their mother’s body odors while their visual exploration was recorded with an eye-movement tracking system. Two groups of infants, who were assigned to either an odor condition or a control condition, looked at a scene composed of still pictures of faces and cars. As expected, infants looked longer at the faces than at the cars but this spontaneous preference for faces …