PSYCH257 Lecture Notes - Functional Skills Qualification, Brainstem, Transient Ischemic Attack
12 Aug 2014
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Document Summary
Measures firing of neurons using electrode placed on scalp. Can detect electrical activity and brain wave patterns. Uses magnetic field and radio pulses to produce brain images. Can determine if disease is active or dormant. Can determine if tumors are benign or malignant. Provides longer but less detailed images of metabolic activity. Cat scan is less expensive and faster than mri. Mri does not use x-rays -> better at detecting neoplasms, brain abnormalities related to seizures, and lesions. Standardized measures to assess functioning in different cognitive domains. Memory, language, visual spatial, attention, executive functioning, motor functioning. Results from transient or permanent damage to brain. Caused by brain dysfunction that affects thinking processes, memory, perception, and consciousness. Change in behavior and emotional functioning are commonly seen. Dementia -> memory impairment and declining cognitive function resulting from degenerative brain damage. Decline in one or more cognitive area but to a lesser degree of severity.
