When does the process of myelination, or the development of myelin sheaths around a neuron's axon, start to take place?

By the age of 16 years, boys are more likely than girls to experience which of the following disorders?

a) Any behavior disorder b) Any anxiety disorder c) Any emotional d) Any depressive disorder

Nora adapts to a yellow stimulus for about 30 seconds. She will then see an afterimage that appears to be _____

A) ?a saturated yellow B) ?green C) ?blue D) ?red