Week 3 Flashcards
3 timescales of brain plasticity
phylogenetic, developmental, ontogenetic (real time)
the earliest juggling was noted around _______ __
1994 BC
3 reasons for plasticity
changing demands through life, new skills/compensation for injury, changing environment
brain weight at birth
350 g
brain weight as adult
1300 g
are all neurons born by age 2?
no
neurons are added to the ____ and the _____ throughout life
olfactory, hippocampus
______ cells continue to develop throughout your lifetime
glial
brain volume changes from age 2 on are mainly due to _____ and _____ ______
myelination, dendritic branching
neurons extend axons to connect to other neurons via ______
synapses
axons must be _______ by glial cells
myelinated
time range for neural progenitor proliferation
4-12 weeks post conception
time range for neural migration
12 weeks to birth
time range for pruning/apoptosis
18 weeks post conception to childhood
time range for synaptotogenesis
18 weeks post conception to adolescence