In the context of intelligence, which of the following statements is true?
A) Researchers theorize a strong role for neurological factors in fluid intelligence.
B) Crystallized intelligence is influenced exclusively by neurological factors.
C) Fluid intelligence is influenced exclusively by environmental factors.
D) Studies show that crystallized intelligence tends to decrease with age through middle adulthood.
A
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A baby grasps for his/her rattle at 3 months of age but cannot quite get hold of it. However, by 11 months the baby is holding and moving the rattle with total control. This is an example of
a) principle of hierarchical integration. b) proximodistal principle. c) cephalocaudal principle. d) principle of the independence of systems.
The subcortical levels regulate activities such as breathing and heart rate. These levels are most fully developed at birth. The cells in the cerebral cortex become more developed and interconnected
The synapses and myelination experience a growth spurt at around 3 to 4 months in the area of the cortex involving the ____________ and the ____________. a) visual cortex; dendrites b) cell body; auditory cortex c) neurotransmitters; dendrites d) auditory cortex; visual cortex