This project is currently focuses on the hormonal, neural, and pharmacological factors underlying vocal expression in nonhuman primates. Major findings this year include: 1. in situ hybridization techniques found evidence for RNA specific to the synthesis of vasopressin and oxytocin in parts of the marmoset hypothalamus, confirming our earlier finding on these neuropeptides using immuno-cytochemistry. 2. The separation response of infant rhesus macaques was shown to be a dynamic process with respect to vocal behavior, in that the calling rate of one vocal sub-type decreased over time, while the calling rate of a different subtype increased over the same time period.
| Newman, John D (2007) Neural circuits underlying crying and cry responding in mammals. Behav Brain Res 182:155-65 |
| Soltis, Joseph; Wegner, Frederick H; Newman, John D (2005) Urinary prolactin is correlated with mothering and allo-mothering in squirrel monkeys. Physiol Behav 84:295-301 |
| Cohen-Mansfield, Jiska; Werner, Perla; Hammerschmidt, Kurt et al. (2003) Acoustic properties of vocally disruptive behaviors in the nursing home. Gerontology 49:161-7 |
| Lorberbaum, J P; Newman, J D; Dubno, J R et al. (1999) Feasibility of using fMRI to study mothers responding to infant cries. Depress Anxiety 10:99-104 |
