NEURAL BASIS OF MEMORY Dot Point 1 Neuron in Memory Formation including axons, dentrites, synapse and neurotransmitters Role of the Temporal Lobe (including hippocampus and the amygdala)
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-Neuron in Memory Formation including axons, dentrites, synapse and neurotransmitters -Role of the Temporal Lobe (including hippocampus and the amygdala)
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Slide 1
-Neuron in Memory Formation including axons, dentrites, synapse
and neurotransmitters -Role of the Temporal Lobe (including
hippocampus and the amygdala)
Slide 2
NEURON REVISION
Slide 3
Kandel experimented on Aplysia (sea slugs). His research
suggests that, during learning, neurons increase production of
neurotransmitters ejected into the synapse, resulting in an
increase in synaptic transmission and the formation of a chemical
trace of the information. The role of the neuron in memory
formation
Slide 4
When a new memory is formed, it leaves behind a biological
change in the neurons. This change is referred to as a memory
trace. Eric Kandel found that biochemical changes in the
connections between the nerve cells occur as new memories are
created. These changes strengthen the connections, and thus make it
easier for the messages to pass from one neuron to the next. Memory
traces
Slide 5
Three changes to the neurons of Aplysia: 1. Function more
neurotransmitters are released 2.Structure:- Axons and dendrites
create more branches to strengthen connections between neurons 3.
Synaptic growth more synaptic connections are formed that also
strengthen connections between neurons HOMEWORK LA 6.26 (Page 337)
Qs 1,2,8,9 Types of Changes to Neurons
Slide 6
Read the case study hanout : How is memory linked to the
Temporal Lobe? Read the case study hanout : How is memory linked to
the Temporal Lobe? http://www.youtube.com/watch?v=LBsW5qz5sDU
http://www.youtube.com/watch?v=LBsW5qz5sDU Man without a memory Man
without a memory HOMEWORK: READ 2013 addition Answer Following Qs
LA 7.4 Qs 1-3 HENRY MOLAISON
Slide 7
Assists in memory of language specifically for naming familiar
objects, places and faces and for constructing fluent, articulate
and coherent speech. Also involved in the memory of facts,
personally significant events and familiar routines. The left
temporal lobe stores information such as names of familiar people,
animals and tools as well as factual information and personal event
that can be expressed in words. The right temporal lobe stores
information for recognising familiar faces, music and pictures.
Temporal lobe
Slide 8
Assists memory formation, sorting and storage and the transfer
of information from STM to LTM. Damage can lead to permanent
short-term and long-term memory dysfunction. People with
hippocampal damage find it difficult to learn new factual
information, however, their ability to learn new skills or
procedures appears unaffected. Hippocampus
Slide 9
Neural basis for memory formation Synapse strength can increase
in 3 ways - Release extra neurotransmitter - Increase number of
receptor sites - Growth of new synapses Long Term Potentiation