Oneirophrenia See Oneiroid state or article on Oneirophrenia . Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Oneiroid state From Greek "oneiros" as meaning 'dream'. In the Oneiroid state, one feels and behaves as though in a dream. Also known as oneirophrenia as described by Ladislas J. Meduna .   Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

  Omega sign The omega sign is the occurrence of a fold (like the Greek letter omega , Ω ) in the forehead, above the nose, produced by the excessive action of the corrugator muscle . It is sometimes seen in depression . Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Olfactory hallucinations Hallucinations involve the perception of odors such as burning rubber or decaying fish. Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Nightmare disorder Repeated occurrences of extended extremely dysphoric and well-remembered dreams that usually involve efforts to avoid a threat to survival security or physical integrity and that generally occur during the second half of a major sleep episode. On awakening from the dreams, the individual rapidly becomes oriented and alert.   Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Night eating syndrome Frequent episodes of eating at night as manifested by eating after waking from sleep or excessive food consumption after the evening meal. There is no awareness and recall of eating. It is not better accounted for by external influences such as changing the person's sleep-wake cycle or by local social norms. Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Nervios The common idiom of distress among Latinos in the United States and Latin America. It refers to a general state of vulnerability to stressful life experiences and difficult life circumstances. It may include a wide range of symptoms of emotional distress somatic disturbance and inability to function. The most common symptoms attributed to that include headaches leg aches irritability stomach disturbance, sleep difficulties nervousness easy tearfulness inability to concentrate trembling tingling sensations and dizziness with occasional vertigo-like exacerbations. It spans the range of severity from cases with no mental disorder two presentations resembling adjustment disorders anxiety depression dissociative somatic symptoms or psychotic disorders.   Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Negativism Opposition to suggestion or advice, resistance to attempts to move the subject, who then does the opposite of what is asked. Behavior opposite to that which is right to a specific situation or against the wishes of others including direct opposition to efforts to be moved. Negativism is usually a sign of catatonia and may progress to (catatonic) rigidity. It is slightly different from gegenhalten , in which the individual resists movement but does not perform the opposite movement. Also see: Oppositional Defiance Disorder (ODD). In a neurological or psychopathological context, neologisms are nonsensical words or phrases whose origins are unrecognizable (e.g., klipno for watch), and are associated with aphasia or schizophrenia . Incorrectly constructed words whose origins are understandable (e.g., headshoe for hat) may also be called neologisms, but are more properly referred as word approximations . Copyright Notice Adapted from Wikipedia. Text is available under the  Cre

Moria Moria is a condition characterized by euphoric behavior, such as frivolity and the inability to act seriously. In addition, there is a lack of foresight and general indifference. It is found in frontal lobe lesions, often along with Witzelsucht , particularly when the orbital surface is damaged. Recent research has shown its presence in frontotemporal dementia . Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Mood congruent psychotic features Delusions or hallucinations with content that is entirely consistent with the typical themes of a depressed or manic mood. If they depress the mood the kind of delusions or hallucinations would involve themes of inadequacy, disease death nihilism or deserved punishment. If the mood is manic the content of the delusions or hallucinations may involve themes of inflated worth, power knowledge or identity or a special relationship to a deity or famous person.   Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Mitmachen In mitmachen , one's body can be put into any posture, despite instructions given to resist. Compare Mitgehen. .   Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Mitgehen Mitgehen is a condition characterized by an extreme form of mitmachen, a German term meaning "to go along with." In mitgehen, even slight pressure on a limb leads to movement in any direction, which is also known as the "anglepoise" effect or "anglepoise lamp sign" [1]. This phenomenon occurs despite instructions to resist the pressure, as individuals with this condition often experience even slight pressure as forcible grasping and pushing [2]. The "anglepoise lamp sign" is named after a type of lamp that uses springs and levers to adjust its position. Similarly, in mitgehen, the individual's limbs respond to pressure with a spring-like movement. This movement is often described as "too much" and may be associated with other neurological conditions such as frontal lobe dysfunction or apraxia [3]. The exact mechanisms underlying mitgehen are not yet fully understood, although it is believed to be related to abnormalities in

Micropsia The visual perception that objects are smaller than they are Mood congruent psychotic features Delusions or hallucinations with content that is entirely consistent with the typical themes of a depressed or manic mood. If the mood is depressed the kind of delusions or hallucinations would involve themes of inadequacy disease death nihilism or deserved punishment. If the mood is manic the content of the delusions or hallucinations may involve themes of inflated worth power knowledge or identity or a special relationship to a deity or famous person. Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Metonymy Speech disturbance in which patients, commonly with schizophrenia , use inappropriate words or expressions that are related to the proper ones. Examples include consuming a menu, instead of a meal; losing the piece of string of the conversation, not the thread of the conversation. See also word approximation .   Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Mania a potu Mania a potu is an alcohol intoxication state with violent and markedly disinhibited behavior. This condition is different from violent behavior in otherwise normal individuals who are intoxicated. Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Mania It's often mirrored as a minor image of depression. Mania is a state of abnormally elevated arousal, affected, and energy level. As mania intensifies, irritability can be more pronounced and result in anxiety or violence. Mania symptoms are elevated mood, flights of ideas, the pressure of speech, increased energy, decreased need, desire for sleep, and hyperactivity. Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Magical thinking A n erroneous belief that one's thoughts words or actions will cause or prevent a specific outcome in some way that defies commonly understood laws of cause and effect Major affective disorder A serious mood disorder; includes unipolar depression and bipolar disorder. Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Macropsia The visual perception is that objects are larger than they are. 01 Magical thinking An erroneous belief that one's thoughts words or actions will cause or prevent a specific outcome in some way that defies commonly understood laws of cause and effect. Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Logorrhoea Logorrhoea , also known as " volubility ", is characterized by fluent and rambling speech using numerous words. Compare Derailment . Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.

Logoclonia In logoclonia , the individual often repeats the last syllable of a word. Compare Echolalia . Often a symptom of Alzheimer's or Parkinson's Disease.   Copyright Notice Adapted from Wikipedia. Text is available under the  Creative Commons Attribution-ShareAlike License 3.0 ; additional terms may apply.