Brain lesions affect penile reflexes
Abstract
Electrolytic lesions of several potential brain afferents to the spinal nucleus of the bulbocavernosus (SNB) affect the display of penile reflexes. Ablation of the median and pontine raphe areas significantly potentiates the expression of cups and flips. Animals with a bilateral lesion of the paraventricular nucleus of the hypothalamus have a shorter latency to the first erection but otherwise display normal reflex behavior. Although bilateral destruction of the lateral vestibular nucleus (LVN) completely eliminated penile reflex activity, it also caused significant motor impairment thus clouding conclusions concerning the normal role of the LVN in penile reflex behavior. These and other results support the hypothesis that these brain regions which project to the SNB region normally modulate spinal reflex behavior of the rat penis.
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All of these procedures produce structural or functional changes in the erectile system.
“All of these procedures produce structural or functional changes in the erectile system (Hull et al. 1992; Monaghan et al. 1993; Warner et al. 1991).”
From Perinatal Exposure to Low Levels of the Environmental Antiandrogen Vinclozolin Alters Sex-Differentiated Social Play and Sexual Behaviors in the Rat (2005) · cites this paper as Monaghan et al. 1993
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Colbert, N. K. W., Pelletier, N. C., Cote, J. M., Concannon, J. B., Jurdak, N. A., Minott, S. B., & Markowski, V. P. (2005) · Environmental Health Perspectives · doi:10.1289/ehp.7509 · Cited by 60 · see citing works
- Authors
- Monaghan, E. P., Arjomand, J., & Breedlove, S. M.
- Affiliations
- University of California, Berkeley (US)
- Venue
- Hormones and Behavior
- Publisher
- Elsevier BV
- Published
- 1993-03
- Volume
- 27
- Issue
- 1
- Pages
- 122-131
- ISSN
- 0018-506X (ISSN-L)
- OpenAlex
- W1997043483
- Cited by
- 38
- References
- 0
- Citations by year
- 2019: 3 · 2018: 2 · 2017: 1 · 2016: 2 · 2015: 1 · 2014: 1 · 2012: 1
- FWCI
- 0.65
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Hormones and Behavior (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institute of Neurological Disorders and Stroke (NS 28421, R01NS028421)
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Sexual function and dysfunction studies
- Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
- Health Sciences › Medicine › Urology › Urinary Bladder and Prostate Research
- Keywords
- penile reflexes, spinal nucleus of the bulbocavernosus, lateral vestibular nucleus, raphe nuclei, paraventricular nucleus, electrolytic lesions, penile erection
- MeSH terms
- Afferent Pathways, Animals, Brain Mapping, Brain Stem, Ejaculation, Male, Neural Inhibition, Paraventricular Hypothalamic Nucleus, Penile Erection, Penis, Raphe Nuclei, Reflex, Spinal Cord, Vestibular Nuclei, Rats, Sprague-Dawley, Rats
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