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Updated: Jul 17, 2026

Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making
Published on: March 2, 2011
Testosterone not associated with violent dreams or REM sleep behavior disorder in men with Parkinson's
Kelvin L Chou1, Maria L Moro-De-Casillas, Melissa M Amick
1NeuroHealth Parkinson's Disease and Movement Disorders Center, Warwick, Rhode Island 02886, USA. kelvin_chou@brown.edu
Abstract:
We examined the relationship between testosterone levels, violent dreams, and REM sleep behavior disorder (RBD) in 31 men with Parkinson's disease (PD): 12 with clinical RBD and 19 without. All PD patients with clinical RBD experienced violent dreams, but none of the 19 non-RBD patients reported violent dreams. While dream content appears to be more aggressive in PD patients with clinical RBD, the presence of violent dreams or clinical RBD is not associated with testosterone levels in men with PD.
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