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brain development, damage, and plasticity - Coggle Diagram
brain development, damage, and plasticity
neuron development
proliferation
new cells/neurons
stem cells
migration
movement of neurons
immunoglobulins
chemokines
differentiation
axons/dendrites form
myelination
glia produce fatty sheath
speeds up transmission
synaptogenesis
synapses form
final stage
occurs throughout life
slows down later
undifferentiated cells
daughter cells
glia/neurons
pathfinding (axons)
gradient of chemicals
attract & repel
neuronal
death
apoptosis
survival
neurotropins
NGF
survival and growth
competition
reach target
form synapses
neural darwinism
life span
skin cells
< 1 year
heart cells
as old as the person
brain development
fetal alcohol syndrome
short dendrites
suppress glutamate
enhance GABA
less excitation/exposure to neurotrophins
adolescents
more impulsive
prefrontal cortex relatively inactive
old age
lose synapses
lose volume
diff of cortex
immature neuron + developing cortex
develop properties
neurons + mature cortex
new properties
retain old properties
fine-tuning
experience & dendritic branching
spines gain & loss
new connections
improved learning & memory
far transfer
special experiences
blind peopel
occipital cortex
touch and sound
deaf people
auditory cortex
touch and vision
music training
professional musicians
temporal lobe 30% larger
thicker grey matter
plasticity after damage
behavioural recovery
new branching
axons
dendrites