Maturation of Synapses and Gaba-Immunoreactive Neurons in the Perinatal Human Visual Cortex

摘要: The human primary visual cortex quadruples in volume between 28 weeks of gestation and birth, again by some 4 months age, after which it remains stable through adulthood. number neurons does not vary significantly from mid-gestation to old age. Synaptic increases rapidly late a maximum at about 8 postnatally. After this, there is loss 40% synapses so that 11 years age the figure close varies little during This decline corresponds parallel dendritic spines on pyramidal neurons.