期刊
DEVELOPMENTAL PSYCHOBIOLOGY
卷 48, 期 1, 页码 71-78出版社
WILEY
DOI: 10.1002/dev.20107
关键词
opioids; learning; memory; neonate; odor; stroke
资金
- EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH &HUMAN DEVELOPMENT [R01HD033402] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE ON DRUG ABUSE [F31DA006082] Funding Source: NIH RePORTER
- NICHD NIH HHS [HD33402, R01 HD033402] Funding Source: Medline
- NIDA NIH HHS [F31 DA006082, F31 DA06082] Funding Source: Medline
Maternal touch profoundly regulates infant neural and behavioral development, and supports learned odor associations necessary for infant attachment. Endogenous opioids are well characterized to mediate the calming and analgesic properties of maternal touch; yet their role in learned odor-touch associations is unknown. We administered naltrexone, an opioid receptor antagonist, before or immediately following classical conditioning with peppermint odor and tactile stimulation (stroking) in rat neonates. Results indicate odor-stroke conditioning produces odor preferences facilitated by endogenous opioids during acquisition and memory consolidation. These results provide additional evidence for the modulatory role of opioids in neonate learning and memory. Disturbances to this system may alter the impact of touch on infant development, particularly in the realm of learning necessary for attachment. (C) 2005 Wiley Periodicals, Inc.
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