Memory Consolidation. PSY 506A 11.4.11 Molly Bisbee. A Summary. Overview. Definition Standard model MTT Differences Evidence. General Definition. A process after initial encoding that is critical to stable long-term memory Stabilizes memories Incorporates new information with old.
Similar to Standard Theory
MTT asserts that H and C are both always involved in the storage and retrieval of episodic memory, and that episodic and semantic memory must be considered separately.
HC active during retrieval of recent episode memoriesHC active during retrieval of episode memories of any age
Foci of left hippocampal activations across subjects
Older memories will have weaker, less distributed, (or nonexistent) traces in HOlder memories will have stronger, more distributed, traces in H
Older memories are represented more diffusely within hippocampus
Reactivating a memory should not affect it
Recent 2 > Recent 1, p < 0.05
Remote 2 > Remote 1, p < 0.05
Repeated retrievals increase activation in hippocampus – equivalently for recent and remote memories
L post HC
L post HC
Reactivating a memory should reduce H involvement
Memories can be reactivated either online (during wake) or offline (during sleep)