The contents of mood-congruent hallucinations and delusions are consistent and compatible with the patient's mood.
Mood
Pervasive and sustained feelings and emotions as subjectively described by the patient. The same phenomena observed by the clinician are called affect. Mood can be either dysphoric (unpleasant) or euphoric (elevated, expansive, "good mood"). Dysphoric moods are characterized by a reduced sense of well-being, depleted energy, and negative self-regard or sense of self-worth. Euphoric moods typically involve an increased sense of well-being, ample energy, and a stable sense of self-worth and self-esteem. Also see: Affect.
Mood Congruence and Incongruence
The contents of mood-congruent hallucinations and delusions are consistent and compatible with the patient's mood. During the manic phase of the Bipolar Disorder, for instance, such hallucinations and delusions involve grandiosity, omnipotence, personal identification with great personalities in history or with deities, and magical thinking. In depression, mood-congruent hallucinations and delusions revolve around themes like the patient's self-misperceived faults, shortcomings, failures, worthlessness, guilt - or the patient's impending doom, death, and "well-deserved" sadistic punishment.
The contents of mood-incongruent hallucinations and delusions are inconsistent and incompatible with the patient's mood. Most persecutory delusions and delusions and ideas of reference, as well as phenomena such as control "freakery" and Schneiderian First-rank Symptoms are mood-incongruent. Mood incongruence is especially prevalent in schizophrenia, psychosis, mania, and depression.
Mutism
Abstention from speech or refusal to speak. Common in catatonia.
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