SOC 32 Lecture Notes - Lecture 4: Oligodendrocyte, Strabismus, White Matter
Document Summary
Cognition - memory - it starts to emerge around 3 years of age. Many of those will depend on the frontal region of the brain which is the last one to develop - the part of the brain which is unique to humans. After birth, there are a lot of glial progenitor cells around which differentiate into oligodendrocyte cells - they are the one responsible for axon myelination. Opcs required for brain injury, inflammation, etc. in the first years of life, the number of synapses drops dramatically - the number of synapses is the highest at birth. Diffusion tensor imaging =measures the diffusion of water molecules in tissue. In grey matters, diffusion is isotropic (has no preferred direction), but in fiber tracts it is highly anisotropic. Early years the newborn baby doesn"t see very well; by the age of three - fully developed. Amblyopia eyes misaligned, so input arrives in the retina at different time points.
