---
abstract: 'The latency to onset of maternal behavior toward foster pups was examined in maternally-naive female rats treated either with uterine distention, a sham procedure, or no uterine manipulation. Uterine distention was achieved by intrauterine injection of hypertonic saline. The treatments were applied to either cycling, Day 10 pseudopregnant, or Day 11 pseudopregnant-decidualized virgins. The latency to onset of maternal behavior for both pseudopregnant groups was significantly shorter than that for the nonpseudopregnant group, when uterine distention was applied. The results suggest that uterine distention during pregnancy (during high progesterone level) may bring about both pregnancy termination (delivery) and the almost immediate maternal behavior seen at parturition, by the same hormonal mechanism.'
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creators_id:
  - ''
  - kristal@buffalo.edu
creators_name:
  - family: Graber
    given: Gary C.
    honourific: ''
    lineage: ''
  - family: Kristal
    given: Mark B.
    honourific: Dr.
    lineage: ''
date: 1977
date_type: published
datestamp: 2007-10-22 10:44:17
department: ~
dir: disk0/00/00/57/70
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eprint_status: archive
eprintid: 5770
fileinfo: /style/images/fileicons/application_pdf.png;/5770/1/uterine.pdf
full_text_status: public
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keywords: 'uterine distention, maternal behavior, pseudopregnancy, deciduoma, uterus, parturition, cervix. rat'
lastmod: 2011-03-11 08:56:59
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metadata_visibility: show
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number: 1
pagerange: 133-137
pubdom: FALSE
publication: Physiology & behavior
publisher: Pergamon Press and Brain Research Publ.
refereed: TRUE
referencetext: ~
relation_type: []
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reportno: ~
rev_number: 23
series: ~
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status_changed: 2007-10-22 10:44:17
subjects:
  - psy-bio
  - behav-neuro-sci
  - bio-ani-behav
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title: Uterine distention facilitates the onset of maternal behavior in pseudopregnant but not in cycling rats
type: journalp
userid: 88
volume: 19
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