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Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making
Published on: March 2, 2011
Testosterone and human aggression: an evaluation of the challenge hypothesis
1Department of Psychology, University of Central Lancashire, Preston, Lancashire PR12HE, UK. jarcher@uclan.ac.uk
Neuroscience and Biobehavioral Reviews
|February 18, 2006
Summary
Testosterone levels in men fluctuate with puberty, sexual arousal, and competition, influencing behavior. Parental care decreases testosterone, linking it to mating or parental life strategies.
Area of Science:
- Human behavior and endocrinology
- Evolutionary psychology
- Reproductive endocrinology
Background:
- The challenge hypothesis links testosterone to aggression in birds.
- Human studies explore testosterone's role in behavior, particularly aggression.
- Life history strategies (mating vs. parental effort) may influence testosterone profiles.
Purpose of the Study:
- To assess human testosterone-behavior relationships in the context of the challenge hypothesis.
- To examine how testosterone levels change across the male lifespan and in response to specific social contexts.
- To investigate the association between testosterone levels and distinct behavioral profiles related to mating and parental effort.
Main Methods:
- Review of existing research on testosterone and human behavior.
- Analysis of studies examining testosterone levels in relation to puberty, sexual arousal, competition, and parental care.
- Examination of behavioral data associated with varying testosterone levels and life history strategies.
Main Results:
- Testosterone rises at puberty, supporting reproductive physiology and behavior.
- Sexual arousal and competitive challenges further elevate testosterone in young males, facilitating competitive behavior.
- Testosterone levels decrease with the demands of offspring care.
- Testosterone levels correlate with different behavioral profiles, reflecting mating or parental effort.
Conclusions:
- The challenge hypothesis provides a useful framework for understanding human testosterone-behavior links.
- Testosterone plays a dynamic role, influenced by social context and life history strategy.
- Further research is needed to specifically test the challenge hypothesis in diverse human populations and contexts.
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