Facilitation of Memory Retrieval by Pre-Test Morphine and Its State Dependency in the Step-Through Type Passive Avoidance Learning Test in Mice

Effect of various behavioral training and testing procedures on brain β-endorphin-like immunoreactivity and the possible role of β-endorphin in behavioral regulation

1984 • 74 citations

State dependent and/or direct memory retrieval by morphine in mice

1990 • 66 citations

The impairment of retention induced by β-endorphin in mice may be mediated by a reduction of central cholinergic activity

1984 • 66 citations

Facilitation of memory retrieval by pretest morphine mediated by μ but not δ and κ opioid receptors

1990 • 42 citations

The antagonistic effects of naloxone on cycloheximide and anisomicin-induced amnesia

1986 • 20 citations