Sexual inhibition is reduced by rostral midbrain lesions in the male rat.
Electrolytic lesions in a circumscribed area of the rostral midbrain of rats shortened the inhibitory period following ejaculation, thereby increasing the number of ejaculations achieved in 1-hour tests. These lesions also interrupted the dorsal norepinephrine bundle as reflected in a 63 percent reduction in telencephalic or cortical norepinephrine.
D000818:Animals; D002540:Cerebral Cortex / Q000032:analysis; D004298:Dopamine / Q000502:physiology; D004542:Ejaculation; D008297:Male; D008636:Mesencephalon / Q000502:physiology*; D009638:Norepinephrine / Q000032:analysis / Q000502:physiology*; D051381:Rats; D013687:Telencephalon / Q000032:analysis; D013997:Time Factors
D004298:Dopamine; D009638:Norepinephrine