Multiple sclerosis is an autoimmune disease where a person loses his part of brain cells. Someone who suffers from multiple sclerosis is gradually losing which of the following:
A. their axons
B. their neurotransmitters
C. their synapses
D. their myelin sheath
Answer: D
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Suppose the correlation between height and weight for adults is +0.40 . What proportion (or percent) of the variability in weight can be explained by the relationship with height?
a. 40% c. 16% b. 60% d. 84%
Sleep spindles appear during what stage of sleep?
A. Stage 1 B. Stage 2 C. Stage 3 D. Stage 4
Why did Rogers quit giving specific praise to clients' expressions that they felt
therapeutic progress? a. It was shown that he was inadvertently reinforcing his clients to say that they felt better. b. He discovered that Freud's directive approach was just as effective as his. c. The term seemed to possess a negative connotation that made his clients feel manipulated. d. It was shown that nondirective approaches were unethical due to selection bias. e. It was shown that engaging in his form of therapy actually rendered the clients into a hypnotic state.
The processes of myelination, synaptogenesis, and synaptic pruning are especially evident in which area of the brain?
A) occipital lobe B) amygdala C) hypothalamus D) prefrontal cortex