7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access
7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access
https://doi.org/10.4077/cjp.2009.amk020
Copy DOIJournal: The Chinese Journal of Physiology | Publication Date: Aug 1, 2009 |
Citations: 2 |
During aging, increased qualitative variations in copulatory behavior are observed in male rats. At the age of 18-19 months, only a small proportion of male rats (16%) still display the complete mating behavior, including mounts, intromissions, and ejaculations, but the rest of these middle-aged animals (84%) fail to exhibit one, two or all of the three behavioral components. With distinct behavioral phenotypes, the middle-aged male rats provide us a useful animal model to investigate the neuroendocrine mechanisms responsible for the age-related reduction in sexual behavior. We have previously elucidated the correlation between the loss of specific copulatory behavioral components and tissue levels of catecholamines in the medial preoptic area (MPOA), nucleus accumbens (NAc) and the bed nucleus of stria terminalis (BNST) of middle-aged male rats. Thus, our findings not only demonstrate that levels of dopamine and norepinephrine in the MPOA, NAc and BNST are critical for eliciting copulatory behavior, but also suggest that these two neurotransmitters play distinct roles in different brain regions to control specific behavioral components in male rats.
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.