PSY 265 Lecture Notes - Lecture 12: Titration, Caffeine, Blurred Vision
Document Summary
Repetition blindness: a second presentation of the same stimulus in rapid succession frequently missed, think about selfridge"s pandemonium model . The patient is asked to draw a vertical ligh in the middle of the drawing. Line is drawn off center dissecting the drawing about. If a line is drawn down the middle, the line they drew is almost exactly halfway between the midpoint and the end. Hemineglect: damage to parietal lobe, patient loses sense of contralateral side, pervasive deficit. Patients will neglect everything on the affected side. The patient neglected the left side of the barbell. The barbell was then rotated through 180 degrees. The patient neglected the same part of the draing, even though it was now on the good side: extinction. Similar to neglect in that attention to the contralesional visual field is abnormal. The deficit is only apparent when there is competition between items in each visual field.
