Memory reconsolidation and extinction are two processes that involve the modification of previously consolidated memories. However, they differ in the way that the memories are modified and the resulting changes to the memory.
Memory reconsolidation involves the destabilization and modification of a previously consolidated memory, followed by its restabilization in a modified form. This process occurs when a memory is reactivated and then modified in some way, such as by adding, deleting, or altering details of the memory.
Extinction involves the suppression of a previously consolidated memory through repeated exposure to the stimulus without the reinforcing consequence. This process results in a reduction in the strength of the memory trace, but the memory is not necessarily erased.
It is important to note that both memory reconsolidation and extinction can be influenced by various factors, such as the strength of the original memory, the nature of the modification or suppression, and the timing of the intervention. Additionally, these processes can interact with each other and may have different effects on different types of memories.