Effects of naltrexone and cross-tolerance to morphine in a learned helplessness paradigm
Opiates have been implicated in learned helplessness (LH), a phenomenon known to be related to opiate stress-induced analgesia (SIA). In the present study, we investigated the role of opiates in the induction of LH and SIA under different conditions. Adult female Wistar rats were trained either by r...
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| Autori principali: | , , |
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| Natura: | Artigo |
| Lingua: | Inglês |
| Pubblicazione: |
Associação Brasileira de Divulgação Científica
1997-06-01
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| Serie: | Brazilian Journal of Medical and Biological Research |
| Soggetti: | |
| Accesso online: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000600012 |
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