Week 10 Flashcards
What is Hebb famous for?
co-activation of connected cells will result in a strengthening of their connection, increasing the probability that the recipient cell will fire if the presynaptic cell does so.
What are the 3 types of Non-Associative Leaning?
Habituation (eventually ignore)
Dishabituation
Sensitisation (become sensitive to whole class of stimuli)
In classical conditioning, when stimuli is paired, where there is a strong and a weak synapse, what eventually happens to the weak synapse?
becomes stronger,
and eventually the weak synapse will occur on its own (Hebb)
Associative Long Term Potentiation (ALTP)
What are the four main factors involved in Operant (instrumental) Conditioning?
Reinforcement, Punishment, positive (add) and negative (remove)
What structure is the most important for learning & memory?
Hippocampus
Are memories stored in the Hippocampus?
no, they go through the hippocampus. It’s needed to learning, but not remembering.
What is long term potentiation?
LTP is an increase in synaptic strength due following high-frequency stimulation.
LTP is considered a major cellular mechanism (or activity that occurs at the cellular level) that underlies learning and memory.
increase in AMPA receptors
Glutamate is very important for LTP
What is Long Term Depression?
A long-term decrease in neural excitability as a result of low-frequency (sub-threshold) stimulation – decrease in AMPA receptors
What is Associative Long Term Potentiation (LTP)?
A long term potentiation where concurrent stimulation of weak & strong synapses where the weak synapse gains strength
What is the difference between declarative and non-declarative memory?
declarative - knowing what, that etc. memory for facts, and events.
Non-declarative - procedural. knowing how.
both part of LTM
Difference between Retrograde and Anterograde Amnesia?
retrograde - cant remember events prior to accident
Anterograde - Cant make new memories.
What is prospective memory?
What are the two components of PM?
memory used to remember to do something in the future
Retrospective - what needs to be done and when?
Prospective - remembering at time event should happen
What structure is important for spatial learning?
Hippocampus
Which structure is important fro short term memory?
The frontal lobes
in recent studies, the hippocampus has been implicated in a memory for?
places
