Neuroimaging and neurodevelopment Flashcards
Weeks of gestation at which a neural tube is seen
2-3
Weeks of gestation at which the ectodermal tissues differentiate to form precursors of different brain regions
5
Weeks of gestation at which neurons develop
8
Weeks of gestation at which neuronal migration occurs
12-20
Weeks of gestation at which there is a transient layer of cortical subplate of migrating neurons seen below the cortex
17
Weeks of gestation at which a cortical pattern of sulci and gyri can be seen
20
Weeks of gestation at which the neuronal count in the human brain is at its highest
28
Weeks of gestation at which synaptogenesis is at its highest
34
Process where number of synapsis decreases at puberty
Synaptic pruning
MRI appearance seen in adolescents suggestive of synaptic pruning
Thinning of frontal and parietal cortices
Age until which white matter volume increases in all brain regions
20
Age at which frontal and parietal grey matter volumes peak
12
Age at which temporal grey matter volumes peak
16
Order in which cortical thickness decreases with age
Sensorimotor areas
Dorsal parietal
Superior temporal
Prefrontal
Technique used to image the integrity of white matter tracts
Diffusion tensor imaging
