Spinal transection accelerates the developmental expression of penile reflexes in male rats

Robert L. Meisel; Benjamin D. Sachs

doi:10.1016/0031-9384(80)90088-8

Spinal transection accelerates the developmental expression of penile reflexes in male rats

Robert L. Meisel, Benjamin D. Sachs

Neuroscience

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

The development of penile reflexes (erections, cups, and flips) in intact and spinally transected male rats was investigated. Spinal transection on Day 25 advanced the ages of onset of penile erections and flips approximately 10 days relative to control males. There were no differences in the ages of onset of penile cups and preputial separation between transected and control males. In addition to advancing the onset of penile reflexes, spinal transection reduced the latency to first reflex and increased the number of erections and flips. The developmental onset of penile reflexes in intact male rats can not be attributed only to the age at which the spinal mechanisms underlying the reflexes mature, but rather to an age-related reduction in supraspinal inhibition.

Original language	English (US)
Pages (from-to)	289-292
Number of pages	4
Journal	Physiology and Behavior
Volume	24
Issue number	2
DOIs	https://doi.org/10.1016/0031-9384(80)90088-8
State	Published - Feb 1980

Bibliographical note

Funding Information:
We thank Jeffrey Crowell for his invaluable assistance in behav~ total testing. This research was supported by U. S. Public Heallh Service Grant HD-08933 awarded to Benjamin D Sachs,

Keywords

Penile reflexes
Puberty
Spinal transection

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10.1016/0031-9384(80)90088-8

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title = "Spinal transection accelerates the developmental expression of penile reflexes in male rats",

abstract = "The development of penile reflexes (erections, cups, and flips) in intact and spinally transected male rats was investigated. Spinal transection on Day 25 advanced the ages of onset of penile erections and flips approximately 10 days relative to control males. There were no differences in the ages of onset of penile cups and preputial separation between transected and control males. In addition to advancing the onset of penile reflexes, spinal transection reduced the latency to first reflex and increased the number of erections and flips. The developmental onset of penile reflexes in intact male rats can not be attributed only to the age at which the spinal mechanisms underlying the reflexes mature, but rather to an age-related reduction in supraspinal inhibition.",

keywords = "Penile reflexes, Puberty, Spinal transection",

author = "Meisel, {Robert L.} and Sachs, {Benjamin D.}",

note = "Funding Information: We thank Jeffrey Crowell for his invaluable assistance in behav~ total testing. This research was supported by U. S. Public Heallh Service Grant HD-08933 awarded to Benjamin D Sachs,",

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doi = "10.1016/0031-9384(80)90088-8",

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T1 - Spinal transection accelerates the developmental expression of penile reflexes in male rats

AU - Meisel, Robert L.

AU - Sachs, Benjamin D.

N1 - Funding Information: We thank Jeffrey Crowell for his invaluable assistance in behav~ total testing. This research was supported by U. S. Public Heallh Service Grant HD-08933 awarded to Benjamin D Sachs,

PY - 1980/2

Y1 - 1980/2

N2 - The development of penile reflexes (erections, cups, and flips) in intact and spinally transected male rats was investigated. Spinal transection on Day 25 advanced the ages of onset of penile erections and flips approximately 10 days relative to control males. There were no differences in the ages of onset of penile cups and preputial separation between transected and control males. In addition to advancing the onset of penile reflexes, spinal transection reduced the latency to first reflex and increased the number of erections and flips. The developmental onset of penile reflexes in intact male rats can not be attributed only to the age at which the spinal mechanisms underlying the reflexes mature, but rather to an age-related reduction in supraspinal inhibition.

AB - The development of penile reflexes (erections, cups, and flips) in intact and spinally transected male rats was investigated. Spinal transection on Day 25 advanced the ages of onset of penile erections and flips approximately 10 days relative to control males. There were no differences in the ages of onset of penile cups and preputial separation between transected and control males. In addition to advancing the onset of penile reflexes, spinal transection reduced the latency to first reflex and increased the number of erections and flips. The developmental onset of penile reflexes in intact male rats can not be attributed only to the age at which the spinal mechanisms underlying the reflexes mature, but rather to an age-related reduction in supraspinal inhibition.

KW - Penile reflexes

KW - Puberty

KW - Spinal transection

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VL - 24

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JO - Physiology and Behavior

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Spinal transection accelerates the developmental expression of penile reflexes in male rats

Abstract

Bibliographical note

Keywords

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