Lesson 5 the role of the neuron in memory formation 2013
1. Lesson 5 - The role of Neurons in Memory formation
Saturday, 30 March 13
2. Last lesson......
According to semantic network theory
A.information moves from sensory, to short-term, to long-term memory.
B.information in long-term memory is stored and organised according to meaningful
groupings.
C.visual material is processed by the visuo-spatial sketchpad.
D.procedural memories are forgotten more readily than semantic memories.
Saturday, 30 March 13
3. Last lesson......
According to semantic network theory
A.information moves from sensory, to short-term, to long-term memory.
B.information in long-term memory is stored and organised according to meaningful
groupings.
C.visual material is processed by the visuo-spatial sketchpad.
D.procedural memories are forgotten more readily than semantic memories.
According to semantic network theory
A.information moves from sensory, to short-term, to long-term memory.
B.information in long-term memory is stored and organised according to
meaningful groupings.
C.visual material is processed by the visuo-spatial sketchpad.
D.procedural memories are forgotten more readily than semantic memories.
Examiner comment
The large percentage of students who chose the incorrect option A again shows the importance of
reading the question carefully – the statement in A is entirely correct, but it does not relate
to semantic network theory as required by the question.
Saturday, 30 March 13
4. Todays lesson............
•Review the function of a neuron
•Explain the role of the neuron in memory formation informed by the work of E.
Richard Kandel
Saturday, 30 March 13
6. Kandel found that any experience resulting in memory produces
physical changes in the brain at the neuronal level, changes in
structure and function of neurons.
Saturday, 30 March 13
7. Kandel’s Research on the role of neurons
Eric Kandel studies the sea slug Aplysia for the following reasons:
•Very simple nervous system
•Only 20,000 neurons
•Largest neurons in the world and can be seen with the naked eye
Saturday, 30 March 13
8. Kandel’s experiments
Studied simple learning and remembering of the gill-
withdrawal reflex of Aplysia
Observed changes at the synapse (i.e. point of
communication by adjacent neurons) in the structure and
function of neurons in three ways:
•Release extra neurotransmitter
•Increase number of receptor sites
•Growth of new synapses
These changes are called collectively Long Term
Potentiation
Saturday, 30 March 13
