منابع مشابه
A Gateway between Recent and Remote Memory
(Lesburgueres et al., 2011). Neuronal networks in these regions are, in fact, selectively remodeled at remote time-points (Restivo et al., 2009). Moreover, the persistence of these lately occurring structural changes is necessary for the persistence of memory (Vetere et al., 2011a). Surprisingly, in contrast with the intuitive idea that the neocortex might exclusively be dedicated to the storag...
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Background and Objective: It is well known that stress and glucocorticoid, modulate memory processing, though the result is completely dependent on the time of stress induction. This study investigated the effect of acute corticosterone administration on memory retrieval of recent and remote memory in a 4 trials/day (low- intensity learning) or 8 trials/ day (high- intensity learning) Morris wa...
متن کاملPropranolol–induced Impairment of Contextual Fear Memory Reconsolidation in Rats: A Similar Effect on Weak and Strong Recent and Remote Memories
Introduction: Previous studies have demonstrated that the &beta-adrenergic receptor antagonist propranolol impairs fear memory reconsolidation in experimental animals. There are experimental parameters such as the age and the strength of memory that can interact with pharmacological manipulations of memory reconsolidation. In this study, we investigated the ability of the age and the strength o...
متن کاملStability of recent and remote contextual fear memory.
Following initial encoding, memories undergo a prolonged period of reorganization. While such reorganization may occur in many different memory systems, its purpose is not clear. Previously, we have shown that recall of recent contextual fear memories engages the dorsal hippocampus (dHPC). In contrast, recall of remote contextual fear memories engages a number of different cortical regions, inc...
متن کاملMemory instability as a gateway to generalization.
Our present frequently resembles our past. Patterns of actions and events repeat throughout our lives like a motif. Identifying and exploiting these patterns are fundamental to many behaviours, from creating grammar to the application of skill across diverse situations. Such generalization may be dependent upon memory instability. Following their formation, memories are unstable and able to int...
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ژورنال
عنوان ژورنال: Frontiers in Neuroscience
سال: 2012
ISSN: 1662-4548
DOI: 10.3389/fnins.2012.00153