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Perceptual disturbance or perceptual disorder may refer to: Perceptual disturbances or distortions, for instance with hallucinogenic drugs; Hallucinations, for instance visual or auditory hallucinations; Sensory processing disorder. Auditory processing disorder; Depersonalization-derealization disorder; Hallucinogen persisting perception disorder
Ayres's theoretical framework for what she called Sensory Integration Dysfunction was developed after six factor analytic studies of populations of children with learning disabilities, perceptual motor disabilities and normal developing children. [81] Ayres created the following nosology based on the patterns that appeared on her factor analysis:
Alice in Wonderland Syndrome (AIWS), also known as Todd's Syndrome or Dysmetropsia, is a neurological disorder that distorts perception.People with this syndrome may experience distortions in their visual perception of objects, such as appearing smaller or larger (), or appearing to be closer or farther than they are.
DAMP is diagnosed on the basis of concomitant attention deficit/hyperactivity disorder and developmental coordination disorder in children who do not have a severe learning disability or cerebral palsy. In clinically severe form, it affects about 1.5% of the general population of 7-year-old-children; 3-6% are affected by more moderate variants.
Prosopometamorphopsia (PMO [1]), also known as demon face syndrome, [2] is a visual disorder characterized by altered perceptions of faces. In the perception of a person with the disorder, facial features are distorted in a variety of ways including drooping, swelling, discoloration, and shifts of position.
Unlike a hallucination, which is a distortion in the absence of a stimulus, an illusion describes a misinterpretation of a true sensation. For example, hearing voices regardless of the environment would be a hallucination, whereas hearing voices in the sound of running water (or another auditory source) would be an illusion.
Macropsia is a neurological condition affecting human visual perception, in which objects within an affected section of the visual field appear larger than normal, causing the person to feel smaller than they actually are.
Children with CDS seem to have more difficulty with consistently remembering things that were previously learned and make more mistakes on memory retrieval tests than do children with ADHD. They have been found to perform much worse on psychological tests involving perceptual-motor speed or hand-eye coordination and speed. They also have a more ...