Glossary

Browse the glossary using this index

Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL

N

Negative symptoms

Most commonly refers to a group of symptoms characteristic of schizophrenia that include diminished emotional expression and avolition, alogia, anhedonia and asociality.

Neologism

In psychiatry, a new word or condensed combination of several words coined by a person to express a highly complex idea not readily understood by others; seen in schizophrenia and organic mental disorders.

Neuro-vegetative symptoms

Neuro-vegetative symptoms are recorded in the mood and affect component and relate to what the person tells you about their sleep, appetite, weight, mood, interest, motivation, energy, concentration, memory, psychomotor activity and libido.

Nihilistic delusion

A conviction of non-existence of the self, part of the self, or others, or of the world. 'I no longer have a brain' is an example.

Cotard's Syndrome is a nihilistic delusion in which one believes that one's body, or parts of it, is disintegrating, or that one is bereft of all resources, or one's family has been exterminated, and so forth. It has been reported in depressive disorders, schizophrenia, and lesions of the non-dominant lobe.