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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:
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
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.
When dyslexia was studied within children, it was found that dyslexic children were often stressed as well as mentally exhausted. These children would place little to no importance on their present state, a behavior that would continue into adulthood. [11] It remains unclear as to whether dyslexia is a symptom of dyschronometria, a cause, or ...
For example, an object can be recognized through touch. [6] Also when it is spoken about, individuals with apperceptive agnosia are able to define the object. [ 16 ] The continuing of the ability of patients to recognize the object through use of different sensory modalities shows that deficits arise because of a breakdown in the interaction ...
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.
For example, infant's relatively poor perceptual skills protect their nervous system from undergoing sensory overload. The fact that infants have slow information processing prevents them from establishing intellectual habits early in their lives that would cause problems later in life, as their environments are significantly different.