PSYC 212 Lecture Notes - Lecture 8: Really Red, Principles Of Grouping, Agnosia

• School: McGill University
• Department: Psychology
• Course: PSYC 212
• Professor: Mathieu Roy

Document Summary

Items will group if they appear to be part of the same larger region. Items will tend to group if they are connected. Ex: perceive as 4 pairs of dots instead of 5. Carving an image into regions of common texture properties. Texture grouping depends on statistics of textures in 1 region vs another. Ex: vertical vs horizontal lines so perceived as diff pattern. Ex: gray chunks in middle = not same size [larger] compared to surround so able to detect diff. Perception = involves figuring out which interpretation of reality is most likely *need to infer. Demon committees = must integrate conflicting opinions & reach a consensus on what perceive. Accidental viewpoint viewing position that produces some regularity in the visual image that is not. Present in the world *need to make sense even if infinite possibilities. Ex: square of 4 colors = can be irregular rectangles at different distance/size/tilt angle.