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A contrast effect is the enhancement or diminishment, relative to normal, of perception, cognition or related performance as a result of successive (immediately previous) or simultaneous exposure to a stimulus of lesser or greater value in the same dimension. (Here, normal perception, cognition or performance is that which would be obtained in ...
The risk factors [110] for treatment resistant depression are: the duration of the episode of depression, severity of the episode, if bipolar, lack of improvement in symptoms within the first couple of treatment weeks, anxious or avoidant and borderline comorbidity and old age. Treatment resistant depression is best handled with a combination ...
The mental status examination (MSE) is an important part of the clinical assessment process in neurological and psychiatric practice. It is a structured way of observing and describing a patient's psychological functioning at a given point in time, under the domains of appearance, attitude, behavior, mood and affect, speech, thought process, thought content, perception, cognition, insight, and ...
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. Boys are overrepresented; girls are currently probably underdiagnosed. There are many comorbid problems/overlapping conditions, including conduct disorder, depression/anxiety, and academic failure.
In another case a 33-year-old woman developed HPPD after abusing LSD for a year long at the age of 18. She reported afterimages, perception of movement in her peripheral visual fields, blurring of small patterns, halo effects, and macro-and micropsia. Previous treatment with antidepressants and risperidone failed to ameliorate these symptoms ...
The data collected through formal (typically self-report) measurement (like the PHQ-9 for depression [3]) has been used to enhance the accuracy of clinical assessments, provide a basis for treatment planning, deliver an objective methodology for tracking treatment progress, alert therapists with clinically proven guidelines to get refractory cases back on track, help prevent hospitalizations ...
Contrast is a feature of visual stimuli that characterizes the difference in brightness between dark and light regions of an image. Perception of contrast is affected by the temporal frequency and spatial frequency properties of a stimulus, and the sensitivity to contrast in sine wave stimuli is characterized by the contrast sensitivity function.
When it comes to the treatment of abnormal behavior or mental disorder, the cognitive model is quite similar to the behavioural model but with the main difference that, instead of teaching the patient to behave differently, it teaches the patient to think differently. It is hoped that if the patient's feelings and emotions towards something are ...