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Involvement of dopaminergic mechanisms in the nucleus accumbens core and shell subregions in the expression of fear conditioning
(ELSEVIER IRELAND LTD, 2008)
The involvement of dopamine (DA) mechanisms in the nucleus accumbens (NAC) in fear conditioning has been proposed by many studies that have challenged the view that the NAC is solely involved in the modulation of appetitive ...
Effects of reversible inactivation of the dorsal hippocampus on the behavioral and cardiovascular responses to an aversive conditioned context
(LIPPINCOTT WILLIAMS & WILKINS, 2008)
In rats, conditioned fear to context causes freezing immobility and cardiovascular changes. The dorsal hippocampus (DH) has a critical role in several memory processes, including conditioning fear to contextual information. ...
Sleep pattern and learning in knockdown mice with reduced cholinergic neurotransmission
(Associação Brasileira de Divulgação Científica, 2013-01-01)
Impaired cholinergic neurotransmission can affect memory formation and influence sleep-wake cycles (SWC). In the present study, we describe the SWC in mice with a deficient vesicular acetylcholine transporter (VAChT) system, ...
Neuroleptic Drugs Revert the Contextual Fear Conditioning Deficit Presented by Spontaneously Hypertensive Rats: A Potential Animal Model of Emotional Context Processing in Schizophrenia?
(Oxford Univ Press, 2009-07-01)
Schizophrenia, bipolar disorder, and attention deficit/hyperactivity disorder (ADHD) present abnormalities in emotion processing. A previous study showed that the spontaneously hypertensive rats (SHR), a putative animal ...
Role of the hippocampus in contextual memory after classical aversive conditioning in pigeons (C. livia)
(Associação Brasileira de Divulgação Científica, 1999)
Effect of maternal separation and chronic stress on hippocampal-dependent memory in young adult rats: evidence for the match-mismatch hypothesis
(Taylor & Francis Ltd, 2014-09)
Adverse experiences early in life may sensitize the hippocampus to subsequent stressors throughout the individual's life. We analyzed in male rats, whether, the interaction between early maternal separation and chronic ...
Hypothalamic sites responding to predator threats - the role of the dorsal premammillary nucleus in unconditioned and conditioned antipredatory defensive behavior
(WILEY-BLACKWELL, 2008)
In this study we provide a comprehensive analysis of the hypothalamic activation pattern during exposure to a live predator or an environment previously associated with a predator. Our results support the view that ...
IL-1β reduces GluA1 phosphorylation and its surface expression during memory reconsolidation and α-melanocyte-stimulating hormone can modulate these effects
(Pergamon-Elsevier Science Ltd, 2018-01)
Pro-inflammatory cytokines can affect cognitive processes such as learning and memory. Particularly, interleukin-1β (IL-1β) influences hippocampus-dependent memories. We previously reported that administration of IL-1β in ...