Myelination:
A) occurs in all brain regions at roughly the same time
B) increases the speed at which a neuron can transmit signals
C) is not complete in the brain areas involved in abstract thought until young adulthood
D) increases the speed at which a neuron can transmit signals and is not complete in the brain areas involved in abstract thought until young adulthood

Question

Quizplus · Accepted Answer

Myelination increases the speed at which a neuron can transmit signals, and it is not complete in the brain areas involved in abstract thought until young adulthood. Therefore, choice D is the correct answer. Choice A is incorrect because myelination occurs at different rates in different brain regions. Choice B is only partially correct. Choice C is incorrect because myelination is not complete in all brain areas at the same time.