?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Effects+of+Medial+Preoptic+Lesions+on%0D%0APlacentophagia+and+on+the+Onset+of+Maternal%0D%0ABehavior+in+the+Rat&rft.creator=Noonan%2C+Michael&rft.creator=Kristal%2C+Dr.+Mark+B&rft.subject=Psychobiology&rft.subject=Physiological+Psychology&rft.subject=Behavioral+Neuroscience&rft.description=Lesions+of+the+medial+preoptic+area+(MPO)+were+produced+through+permanently+indwelling+electrodes+24+hr+prior+to+parturition+in+pregnant+rats%2C+or+24+hr+prior+to+donor-placenta+presentation+in+virgin+rats+determined+in+a+pretest+to+be+placentophages.+The+lesions+had+no+disruptive+effect+on+placentophagia+in+the+virgin+females.+However%2C+MPO+lesions+did+delay+the+onset+of+placentophagia%2C+pup-retrieval%2C+and+nestbuilding+in+some+parturient+rats.+In+others%2C+lesions+produced+an+impairment+(in+latency+and+quality)+only+of+nest-building.+None+showed+any+impairment+of+pup-licking%2C+or+in+the+clear+tendency+to+leave+excreted+waste+away+from+the+gathered+pups.+These+results+suggest+the+possibility+of+at+least+semi-independent+mechanisms+for+the+various+components+of+maternal+behavior.&rft.publisher=Pergamon+Press+and+Brain+Research+Publ.&rft.date=1979&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F6213%2F1%2FMPO.pdf&rft.identifier=++Noonan%2C+Michael+and+Kristal%2C+Dr.+Mark+B++(1979)+Effects+of+Medial+Preoptic+Lesions+on+Placentophagia+and+on+the+Onset+of+Maternal+Behavior+in+the+Rat.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F6213%2F