What two chemical compounds are known to be particularly important neurotransmitters in the brain?

Because ________________ is a primary inhibitory neurotransmitter, it facilitates sleep and reduces arousal of the nervous system

FIll in the blank with correct word.

Research into the concept of self-esteem has found that it is

a) a constantly-changing, dynamic concept. b) stable in childhood and adulthood, but not during adolescence. c) nonexistent in childhood, unstable in adolescence, and stable in adulthood. d) relatively stable from childhood through adulthood.