PSYC 2390 Chapter Notes -Change Blindness

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2390
• Professor: Lana Trick

Document Summary

Central task condition letters flashed in center where observer is looking and need to indicate if all letters are the same: face or green disc is presented off to side. Dual task condition asked both if all letters in middle are same and whether male or female in periphery or whether green or red disc. Have more experience perceiving faces, more meaningful, initially perceive faces as a whole. Perception can be affected by lack of focused attention: Failure to perceive a stimulus that isn"t attended even if it is in full view: gorilla and basketball passes. Present picture then present slightly different picture. Change blindness: difficulty detecting changes in scenes. Continuity errors seen in videos (her hair is behind her ear in this shot but in the next shot it isn"t) Key difference between changes in real life and changes in experiment: changes in real life are often accompanied by motion (cue that change is occurring)