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Anatomy And Physiology Of The Nucleus Paragigantocellularis: Neural Regulation Of Genital Reflexes In Male And Female Rats, Joseph Jeremy Normandin
Anatomy And Physiology Of The Nucleus Paragigantocellularis: Neural Regulation Of Genital Reflexes In Male And Female Rats, Joseph Jeremy Normandin
Biology Dissertations
The supraspinal control of descending inhibition of genital reflexes (such as ejaculation) is poorly understood but is important in our global comprehension of how neural signals are integrated to produce sexual behavior, and in our understanding of sexual dysfunction. Sexual dysfunctions, such as premature ejaculation/delayed ejaculation in men, and involuntary vaginal spasms, dyspareunia, and anorgasmia in women, are common. An underlying dysregulation of genital reflexes may produce these dysfunctions, especially in those individuals being treated for depression and anxiety with serotonergic drugs. The nucleus paragigantocellularis (nPGi) of the rat medulla has been described as a descending inhibitory system for genital …
Social Interactions Of Lythrypnus Dalli And Their Effects On Aggression, Neuropeptides, Steroid Metabolism, And Sex-Typical Morphology, Michael Paul Black
Social Interactions Of Lythrypnus Dalli And Their Effects On Aggression, Neuropeptides, Steroid Metabolism, And Sex-Typical Morphology, Michael Paul Black
Biology Dissertations
Social interactions can have profound effects on the behavior, physiology, and overall fitness of an individual. An example of this in Lythrypnus dalli is the removal of a male from a social group resulting in a dominant female fish changing sex. The dominant female's transformation involves a suite of changes including brain, behavior, morphology, and physiology. Following the social trigger (male removal), sex-changing individuals' morphology, steroid levels, and changes in the behavior were quantified in the field and compared to results found previously in the laboratory. There were lower rates of aggressive and courtship behavior in the field, but the …