PSYC 235 Lecture Notes - Vascular Dementia, Therapeutic Drug Monitoring, Cognitive Disorder

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In this chapter we examine the brain disorders that affect cognitive processes such as learning, memory, attention, perception, thinking and consciousness. Delirium an often temporary condition displayed as confusion and disorientation. Dementia a progressive condition marked by gradual deterioration of a range of cognitive abilities. Amnestic disorders dysfunctions of memory due to a medical condition or a drug or toxin. The consequences of a cognitive disorder often include profound changes in a person"s behaviour and personality. Intense anxiety or depression is common, especially among people with dementia. In addition, paranoia is frequently reported, as are extreme agitation and aggression. The deterioration of cognitive ability, behaviour & personality and the effects on others are a major concern for mental health professionals. Delirium is characterized by impaired consciousness and cognition during the course of several hours or days. Delirium is one of the earliest recognized mental disorders. People with delirium appear confused, disoriented and out of touch with their surroundings.