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9 Topic Pages Found in Psychology and starting with the letter N
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Open Narcissism

Narcissism in its extreme forms is considered a personality disorder. It is defined as a syndrome or combination of characteristics that includes the


any of a number of substances that have a depressant effect on the nervous system. The chief narcotic drugs are opium , its constituents morphine and

Nature and nurture

An ongoing debate in psychology about the etiology of traits and behavior. It inquires as to the influence of genetic inheritance (biological nature)

Near-death experiences

phenomenon reported by some people who have been clinically dead, then returned to life. Descriptions of the experience differ slightly in detail from

Open Nervous system
Nervous system

network of specialized tissue that controls actions and reactions of the body and its adjustment to the environment. Virtually all members of the


in psychiatry, a broad category of psychological disturbance, encompassing various mild forms of mental disorder. Until fairly recently, the term

Open Newborn infants
Newborn infants

The neonate exists in a developmental stage in which many of the adaptations of the fetus are no longer relevant to the survival demands of postnatal

Open Nicotine

C 10 H 14 N 2 , poisonous, pale yellow, oily liquid alkaloid with a pungent odor and an acrid taste. It turns brown on exposure to air. Nicotine, a


This entry provides a historical overview of conceptualizations of nostalgia. It contrasts past treatises, which viewed nostalgia as a neurological