Memory Flashcards
What is learning?
Acquisition of information
What is memory?
Storage of learned information
What is recall?
Reacquisition of stored information
What is an engram?
Physical embodiment of a memory
What are the 2 types of memory?
- Procedural and declarative
- Explicit and implicit
What is procedural memory?
Involves actions/skills unavailable to a conscious mind - you can’t explain how you learned e.g. riding a bike
What is declarative memory?
Skills that are available to a conscious mind, encoded in symbols and language - information that can be explained and passed on
What is explicit memory?
A memory that can be consciously recalled
What is implicit memory?
A memory that can’t be consciously recalled e.g. learning to ride a bike
Is procedural memory explicit or implicit?
Implicit
What are the 3 types of memory (based on duration)?
- Immediate memory
- Short-term memory
- Long-term memory
What does electrical stimulation of the temporal lobe cause?
Hallucinations and recollection of past experiences
What kind of memory is the pre-frontal cortex responsible for?
Immediate ‘working’ memory
What kind of memory is the hippocampus responsible for? (2)
- Converting short to long-term memory
- Declarative memory
What kind of memory is the amygdala responsible for? (2)
- Implicit memory
- Emotional memory and learnt fear
What kind of memory is the cerebellum responsible for?
Procedural memory
What do hippocampal lesions cause?
Significant memory loss
How many layers does the hippocampus have?
3
What is the Hebbian synapse concept?
There is a change in the efficacy of synapses during memory formation
What is long term potentiation?
Long term increase in synaptic strength
What is long term depression?
Long term decrease in synaptic strength
What can cause long term potentiation?
Simultaneous stimulation of the pre and postsynaptic neuron
What is habituation?
Decreased response as a result of repeated gentle stimulation - learn to not react
How does long term potentiation occur?
Involved trafficking of AMPA receptors to the postsynaptic membrane
