Rationale Several clinical studies demonstrate that the absence of periods of sleep is closely
related to occurrence of anxiety symptoms. However, the basis of these interactions is …

A biphasic effect of morphine on locomotion has been extensively described. Nevertheless,
the effects of this opioid on other behavioral parameters have been overlooked. The aim of …

Background: Although mood-congruent memory (MCM), or the tendency to recall information
consistent with one’s mood, is a robust phenomenon in human depression, to our …

Rationale The endocannabinoid system has been implicated in the neurobiological
mechanism underlying drug addiction, especially the primary rewarding dopamine-dependent …

We investigated the effects of reserpine (0.1–0.5 mg/kg) on the performance of mice in the
plus-maze discriminative avoidance task (DAVT), which simultaneously evaluates memory …

Numerous studies have described memory deficits following sleep deprivation. There is
also evidence that the absence of sleep increases brain oxidative stress. The present study …

While the effects of sleep deprivation (SD) on the acquisition and consolidation phases of
memory have been extensively characterized, its effects on memory retrieval remain …

Previous studies have demonstrated that stress or glucocorticoids impair the retrieval of spatial
memory in rodents and declarative memory in humans. However, the effects on memory …

… It should be highlighted that Takatsu-Coleman and colleagues have reported the reinstatement
of a forgotten memory in adult mice. In the present study, amnesia was physiologically …

Ethnopharmacological relevance Pfaffia glomerata roots are widely used in Brazil to treat
various pathological conditions, particularly psychological disorders. 20-hydroxyecdysone, a …