Research reportGenetic variation, hippocampal mossy fibres distribution, novelty reactions and spatial representation in mice
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The Value of the Object Recognition Paradigm in Investigating Animal Models of Alzheimer's Disease: Advances and Future Directions
2018, Handbook of Behavioral NeuroscienceCitation Excerpt :Less than 10 years later, it has been adapted to mice (Dodart et al., 1997; Messier, 1997), and more recently to other species (Languille et al., 2015; Ardiles et al., 2012). Note that alternative multiple-trial tasks, which are also based on the object exploration paradigm, have been designed for rodents and have been used sometimes in AD models (Poucet et al., 1986; Roullet and Lassalle, 1990; Uekita and Okanoya, 2011). In a prototypical design of the one-trial paradigm (Fig. 21.3), an animal is first allowed to explore two identical objects during a ‘sample trial’.
Regional vulnerability of the hippocampus to repeated motor activity deprivation
2016, Behavioural Brain ResearchCitation Excerpt :These behavioral results support the latest findings in which functional inactivation of dorsal CA2 caused no deficit in hippocampus-dependent spatial memory [32]. However, given the previously reported involvement of the hippocampus and its general modulatory role in rearing behavior [13,54,5,31,12,29,62] regional structural alterations, especially in dorsal CA2, highlight the pivotal role of the CA2 region in such behaviors that commonly appear independent of the hippocampus. Whether this unique profile of changes induced by deprivation in CA2 affects the hippocampal capacity for encoding, processing, storage and/or recall still require further evidence at the subcellular level.
Hippocampal Y2 receptor-mediated mossy fiber plasticity is implicated in nicotine abstinence-related social anxiety-like behavior in an outbred rat model of the novelty-seeking phenotype
2014, Pharmacology Biochemistry and BehaviorCitation Excerpt :The hippocampal MF comprise the axons of the dentate gyrus granule neurons that innervate the CA3 field (Gaarskjaer, 1986). Morpho-behavioral correlations in genetically-altered mice implicate hippocampal MF with exploratory behavior (Roullet and Lassalle, 1990; Ivanco and Greenough, 2002; Mineur et al., 2002). Moreover, data from inbred mice correlate heritable variance in MF size with different emotional behaviors, such as fear conditioning and anxiety-like behavior (Prior et al., 1997).
Neonatal fibroblast growth factor treatment enhances cocaine sensitization
2012, Pharmacology Biochemistry and BehaviorCitation Excerpt :For example, we recently showed how neonatal FGF2 treatment shifts the developmental trajectory of the hippocampus, leading to a life-long change in neurogenesis, hippocampal morphology and gene expression (Turner et al., 2011). Considering the myriad roles of the hippocampus in guiding emotional behavior and exploration of the environment, which are certainly relevant to addiction-related behavior (Bannerman et al., 2002; Gray, 1982; Jacobson and Sapolsky, 1991; Jeewajee et al., 2008; Lever et al., 2006; McNaughton and Gray, 2000; Roullet and Lassalle, 1990; Sapolsky et al., 1984), we cannot exclude the possibility that increased cocaine sensitization in neonatal FGF2-treated bLRs is linked to changes in their hippocampus. Future experiments are warranted to explore these possibilities.