[2] Mild illusions or misperceptions associated with changes in mood; e.g. mistaking a shadow for the presence of a person, perceiving movement in peripheral when there is none.
[3] Akathisia refers to a subjective feeling of restlessness in the lower limbs that is related to abnormal activity in the extrapyramidal system in the brain, often due to antipsychotic medication.
Apperception is a normal phenomenon and refers to the ability to understand sensory inputs in their context, to interpret them and to incorporate them into experience.
In general, it refers to any (pathological) tendency to be self-absorbed to such a degree that the feelings, thoughts and desires of a person are governed by their internal apprehension of the world and not by an external reality shared with others.
76 Autistic thinking refers to a cognitive progress that is not in accordance with consensus reality, but rather emphasizes preoccupation with inner experiences and needs.
The term comes from the Greek word "choreia" or "dance" since usually large groups of muscles are involved simulating dance-like movements.
On mental status examinations it is manifest by disorientation in time, place and person, memory difficulties caused by failure to register and recall, aphasia, and agnosia.
Conversion disorder involves the unintentional production of symptoms or deficits affecting motor or sensory function that are not fully explained by a neurological or medical condition.
The sensation may be caused by a type of convulsion known as a "partial seizure" which occurs in parts of the temporal lobe or other areas of the brain – typically the individual remains conscious throughout.
Dementia praecox refers to a chronic, deteriorating psychotic disorder characterized by rapid cognitive disintegration, usually beginning in the late teens or early adulthood.
[18] Carl Jung wrote, "This is the basic activity of psychic life, this fantasy making", and he used the term image not from afterimage, something one has experienced or seen, but says he takes it from poetic usage.
Alternate term for organic hallucinosis and delusional parasitosis, the continuous belief that one's skin or body has been infested by parasites or insects.
Dhat syndrome refers to a complaint of premature ejaculation or impotence and a false belief that semen is being passed in the urine.
Also called "induced psychosis", folie à deux is a delusional disorder shared by two or more people who are closely related emotionally.
See also § écho de la pensée and § thought sonorization Gegenhalten is a catatonic phenomenon in which the subject opposes all passive movements with the same degree of force as applied by the examiner.
These include transection of the spinal cord, parietal lobe lesions (e.g. right middle cerebral artery thrombosis), anxiety, depersonalization, epileptic auras, migraines, sensory deprivation, and vertigo (i.e. "floating on air").
Latah is a culture-specific syndrome usually seen in Southeast Asia and involves startle-induced disorganization, hypersuggestibility, automatic obedience, and echopraxia (a tendency to mimic examiner's or other person's actions).
In l'homme qui rit (from the French, meaning "the man who laughs"), an individual displays inappropriate laughter accompanied by release phenomena of the frontal subdominant lobe.
Mania symptoms are elevated mood, flights of ideas, pressure of speech, increased energy, decreased need or desire for sleep, and hyperactivity.
In a neurological or psychopathological context, neologisms are nonsensical words or phrases whose origins are unrecognizable, and are associated with aphasia or schizophrenia.
Body dysmorphic disorder's obsessive preoccupation that some aspect of one's own appearance is severely flawed is another example of an overvalued idea.
A Freudian slip, or parapraxis, is an error in speech, memory or physical action that is believed to be caused by the unconscious mind.
This term refers to uncontrollable repetition of a particular response, such as a word, phrase, or gesture, despite the absence or cessation of the original stimulus.
[1] A combined term for § gedankenlautwerden and § écho de la pensée ("thought echo") Torpor in psychopathology is usually taken to mean profound inactivity not caused by reduction in consciousness.
These are typically preceded by an unwanted urge or sensation in the affected muscles, can sometimes be suppressed temporarily, and characteristically change in location, strength, and frequency.
The hair pulling is to such a degree that it results in distress Verbigeration is a verbal stereotypy (repetition) in which usually one or several sentences or strings of fragmented words are repeated continuously.
Waxy flexibility, also known as § cerea flexibilitas, is characterized by an individual's movements having the feeling of a plastic resistance, as if the person were made of wax.
Windigo (also wendigo, windago, windiga, witiko, and numerous other variants) psychosis is a culture-bound disorder which involves an intense craving for human flesh and the fear that one will turn into a cannibal.
[49][50] Word salad (derived from the German: Wortsalat) is characterized by confused, and often repetitious, language with no apparent meaning or relationship attached to them.
Zeitraffer (German: [ˈt͡saɪ̯tˌʁafɐ] ⓘ) phenomenon, which translates to "time-lapse" in English, highlights how events, objects, and processes change and evolve over time, sometimes in ways that are imperceptible in real-time.