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Diminished nocturnal penile tumescence in depression: a replication study
M E Thase1, C F Reynolds, J R Jennings
1Department of Psychiatry, University of Pittsburgh School of Medicine, Pennsylvania 15213.
Biological Psychiatry
|June 1, 1992
Summary
Men with major depression show abnormal nocturnal penile tumescence (NPT) and reduced penile rigidity. These sexual function disturbances were observed in a new sample, replicating earlier findings in depressive states.
Area of Science:
- Neuroscience
- Psychiatry
- Urology
Background:
- Previous research indicated potential disturbances in sexual function during depressive states.
- Nocturnal penile tumescence (NPT) and penile rigidity are key physiological measures of sexual function.
Purpose of the Study:
- To replicate earlier findings on NPT and penile rigidity abnormalities in men with major depression.
- To investigate the relationship between these disturbances and indicators of depression severity.
Main Methods:
- A descriptive study involving 51 men diagnosed with major depression according to DSM-III-R criteria.
- Comparison of NPT and penile rigidity measures with age-matched patient and normal control groups from a prior study.
Main Results:
- The new sample exhibited significant abnormalities in NPT.
- Diminished penile rigidity was also observed in the patient group.
- These sexual function disturbances did not correlate with psychobiological markers of severe or endogenous depression.
Conclusions:
- The findings replicate and strengthen the evidence for NPT and penile rigidity disturbances in major depressive states.
- Sexual dysfunction in depression may not be directly linked to the severity or endogenous nature of the depression.