PSY1022 Chapter Notes - Chapter Prescribed : Amygdala, Cryptomnesia, Implicit Memory
26 May 2018
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PSY1022- Readings – Week 2
- the biology of memory
- the neural basis of memory storage
• the elusive engram
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o engram - the physical trace of each memory in the brain.
• long term potentiation
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o refers to the gradual strengthening of connections among neurons
from repetitive stimulation over time.
o LTP and glutamate
o
▪ LTP tends to occur at synapses where the sending neuron
releases the neurotransmitter glutamate into the synaptic
cleft - the space between the sending and receiving neuron
▪ LTP enhances the release of glutamate into the synaptic
cleft resulting in enhanced learning
- amnesia
• retrograde amnesia
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o lose some memories of our past
• anterograde amnesia
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o inability to form new memories
- the amygdala and emotional memory
• the amygdala interacts with the hippocampus during the formation of
memory
- biology of memory deterioration
• reduction in synapses
• degeneration and death of acetylcholine neurons in the basal forebrain.
- memory over time
• children’s memory span increases with age
• conceptual inderstanding increases with age
• over time children develop enhanced meta-memory skills
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o knowledge about our own memory abilities and limitations
• infants’ implicit memory
• infantile amnesia
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o inability of adults to remember personal experiences that took
place before an early age
- false memories
• flashbulb memories
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o emotional memories that are extraordinarily vivid and detailed.
o phantom flashbulb memory
• source monitoring
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o ability to identify the origins of a memory
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