Gogate M G, Brid S V, Wingkar K C, Kantak N M
Krishna Institute of Medical Sciences, KARAD, Maharashtra, India.
Physiol Behav. 1995 Jun;57(6):1205-7. doi: 10.1016/0031-9384(94)00302-l.
Involvement of septal nuclei in modulation of male sexual behavior in rats was investigated. Sexually active Wistar male rats were assigned to intact, sham, lateral septal nuclei lesioned (LSL), and medial septal nuclei lesioned (MSL) groups. All male rats were tested for sexual behavior in an arena in the presence of a sexually receptive female. Intromission and ejaculation latencies were increased, and mount, intromission, and ejaculation frequencies were decreased in the LSL group compared to the intact group. In contrast, mount and intromission latencies were decreased, and pursuit and mount frequencies were increased in the MSL group compared to the intact group. The results indicate that medial septal nuclei may inhibit and lateral septal nuclei may facilitate male sexual behavior in rats.
研究了大鼠中隔核在调节雄性性行为中的作用。将性活跃的Wistar雄性大鼠分为完整组、假手术组、外侧中隔核损伤组(LSL)和内侧中隔核损伤组(MSL)。所有雄性大鼠在有性接受能力的雌性大鼠在场的情况下,在一个场地中进行性行为测试。与完整组相比,LSL组的插入和射精潜伏期延长,爬跨、插入和射精频率降低。相反,与完整组相比,MSL组的爬跨和插入潜伏期缩短,追逐和爬跨频率增加。结果表明,内侧中隔核可能抑制大鼠的雄性性行为,而外侧中隔核可能促进该行为。