Related Experiment Video
Updated: Aug 19, 2026

Sex Stratified Neuronal Cultures to Study Ischemic Cell Death Pathways
Published on: December 9, 2013
Biology of sexuality inborn determinants of human sexual response
Abstract:
Opinions vary on the relative importance of biological and learning processes in the aetiology of sexual expression and deviance. The structure of personality, consistency of fantasy patterns, and the familial nature of homosexuality hint at a biological anlage. Research with the HY-antigen complex and X chromosome, and the elucidation of the interactions of intrauterine testosterone and its products with the foetal brain and neurotransmitters, have given us new models to understand the programming of sexuality. However, gonadotrophin feedback is not relevant as an indicator of brain feminization in primates and man. Finally, the interaction of masculinization and defeminization provides us with a model for understanding homosexual behaviour.
Related Concept Videos
Introduction to Biological Bases of Psychology
The nervous system, the cornerstone of...
Natural Selection and Mating Preferences
Females, due to their biological roles in conception, pregnancy, and nursing, inherently...
Criticisms of the Evolutionary Perspective
Evolutionary psychology provides one explanation for these findings, suggesting...
Primary Motives: Sleep, Sex, and Pain Avoidance
Sleep is a fundamental physiological drive that fosters a state of restfulness crucial for several bodily functions. It facilitates body restoration, the process by which the body repairs, rejuvenates, and maintains itself during sleep, including memory...
Instinct Theory
Psychosexual Theory of Development
The Five Stages of Psychosexual Development
Freud's psychosexual...

