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.Failure of apperception is seen in delirious states.Mutism can be dissociative (hysterical) in which an individual (commonly a child or adolescent) stops speaking at once without involvement of any neurological or physical contributing factor; or it can be elective (selective) in which a child does not speak at all in certain situations (such as in school) but speaks well in other conditions (like at home or at play).
It can be seen in normal grief reaction, schizophrenia and some emotionally arousing situations.
This is an alternate term for delusional perception.
This glossary covers terms found in the psychiatric literature; the word origins are primarily Greek, but there are also Latin, French, German, and English terms.
Many of these terms refer to expressions dating from the early days of psychiatry in Croatia.
It is one of the Schneiderian first rank symptoms and is defined as a true perception, to which a patient attributes a false meaning.
For example, a person may see written "No Trespassing" on a board and may infer from this that intelligence agencies are spying on him. Mutism is absence of speech with apparently normal level of consciousness.
In the former, speech, though adequate in verbiage, conveys very little information and may consist of stock phrases or vague references.
In poverty of thought, by contrast, there is a far-reaching impoverishment of the entire thinking of the patient, who, as a result, says very little.
Astasia-abasia is a form of psychogenic gait disturbance in which gait becomes impaired in the absence of any neurological or physical pathology. He staggers and appears as if going to fall but always manages to catch hold of something in time.
Sometimes these people cannot even stand but on the other hand they are well able to move their legs while lying down or sitting.
It is typically a negative symptom of schizophrenia, Anosognosia is a condition in which a person who suffers certain disability seems unaware of the existence of his or her disability.