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the ability of synapses to change
the process of making transmission easier
What are the three kinds of memory
They correlated with different modes of synaptic potentiation
critical for aquiring new memories and consolidating short into long term memories
crucial for fear memories
high order processing and planning occur here
What is immediate memory
the ability to hold something into your thoughts for just a few seconds (essential for reading)
feeling for flow of events
what just happened "echoes" in our mind for a few seconds
Short Term or Working Memory
lasts from a few seconds to a few hours
can be easily forgotten if distracted
Ex: phone number when you look up
What causes memory to last longer?
A type of facilitation which is rapid arrival of repetitive signals at the synapse
Causes Ca+2 accumulation and postsynaptic cell more likely to fire
Post tenanic potentiation
Another type of facilitation that jogs a memory
Ca+2 level in synaptic knob stays elevated
Little stimulation needed to recover memory
Long Term Memory- Declarative
retention of events that you can put into words
Long Term Memory- Procedural
retention of motor skills
Long Term Memory- Amnesiacs
Have impaired declarative memory
Long Term Memory
Physical remodeling of synapses
Molecular changes - long term potentiation changes in receptors and other features increases transmission across experiences synapses
effect is longer lasting
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