PSYC 301L Lecture Notes - Lecture 14: Long-Term Potentiation, Fear Conditioning, Episodic Memory
Document Summary
New memories are fragile and can be disrupted: likely that experiences will be altered before they"re stored. Muller and pelzaken (1900: one group learned two lists of nonsense syllables back to back, one group had a six-minute delay in between, recall was better in delay group. Consolidation- process that changes new memories from fragile to stable states: synaptic consolidation, systems consolidation occurs involving the whole brain. Heff (1948: learning and memory are represented by physiological changes at the synapse, neural record of experience, repeated activity can cause: Long term potentiation (ltp)- enhanced neuron firing after repeated stimulation: structural changes and enhanced firing. Standard model of consolidation: incoming information activates a number of areas in the cortex, cortex communicates with the hippocampus, reactivation: hippocampus binds them together, direct connections are formed between cortical areas. Retrograde amnesia- loss of memory for events prior to trauma. Graded amnesia- memory for recent events is more fragile than for remote events.
