Disorders of Perception
Disorders of Perception Disorders of perception can be divided into sensory distortions and sensory deceptions. In distortions there is a constant real perceptual object, which is perceived in a distorted way, sensory deceptions a new perception occurs that may or may not be in response to an external stimulus. Sensory distortions These are changes in perception that are the result of a change in the intensity and quality of the stimulus or the spatial form of the perception. Changes in intensity (hyper- or hypo-aesthesia) Increased intensity of sensations (hyperaesthesia)- may be the result of intense emotions or a lowering of the physiological threshold.Anxiety and depressive disorders as well as hangover from alcohol and migraine are all associated with increased sensitivity to noise (hyperacusis) so that even day-to-day noises such as washing crockery are magnified to the point of discomfort. Hypoacusis occurs in delirium, where the threshold for all sensations is raised. T...