Directly reactivated, but not indirectly reactivated, memories undergo reconsolidation in the amygdala
نویسندگان
چکیده
منابع مشابه
Directly reactivated, but not indirectly reactivated, memories undergo reconsolidation in the amygdala.
Memory consolidation refers to a process by which newly learned information is made resistant to disruption. Traditionally, consolidation has been viewed as an event that occurs once in the life of a memory. However, considerable evidence now indicates that consolidated memories, when reactivated through retrieval, become labile (susceptible to disruption) again and undergo reconsolidation. Bec...
متن کاملMetamemory ratings predict long-term changes in reactivated episodic memories
Reactivation of long-term memory can render the memory item temporarily labile, offering an opportunity to modify it via behavioral or pharmacological intervention. Declarative memory reactivation is accompanied by a metamemory ability to subjectively assess the knowledge available concerning the target item (Feeling of knowing, FOK). We set out to examine whether FOK can predict the extent of ...
متن کاملLinking New Information to a Reactivated Memory Requires Consolidation and Not Reconsolidation Mechanisms
A new memory is initially labile and becomes stabilized through a process of consolidation, which depends on gene expression. Stable memories, however, can again become labile if reactivated by recall and require another phase of protein synthesis in order to be maintained. This process is known as reconsolidation. The functional significance of the labile phase of reconsolidation is unknown; o...
متن کاملModulatory effects of stress on reactivated emotional memories.
Previous studies have shown that stress, through secretion of stress hormones, increases the consolidation of memory while it exerts negative effects on memory retrieval. Other studies show that the process of memory retrieval serves as a reactivation mechanism whereby the memory trace that is reactivated during the retrieval process is once again sensitive to modifications by pharmacological o...
متن کاملRepeatedly reactivated memories become more resistant to hippocampal damage.
We examined whether repeated reactivations of a context memory would prevent the typical amnesic effects of post-training damage to the hippocampus (HPC). Rats were given a single contextual fear-conditioning session followed by 10 reactivations, involving a brief return to the conditioning context (no shock). Subsequently, the rats received sham or complete lesions of the HPC. When tested for ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2006
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.0507168103