PSY 457LEC Lecture Notes - Lecture 6: Subjective Constancy, Pacifier, Habituation
Document Summary
What does it mean to have object knowledge: perceiving object constancy, intermodal integration, perceiving object boundaries, grasping object permanence, grasping basic object physics, categorization, grasping functionality. Shape & size constancy: as objects or observers move, objects change in orientation and size relative to an observer, constant changes on the retina. Dishabituated to 3i cube, suggesting that infants respond to physical size. Familiarization with either square or large trapezium at different slants. Tested on both square and trapezium (new slant), side by side. Familiarization: infants presented with one of the 2 pacifiers in the mouth for 90 s. All of these studies have looked at previously segmented objects with little ambiguity. Could be argued that true knowledge of an object includes knowing how the object behaves even when it"s not directly observable. Object perception is not limited to cases where an object is clearly distinguishable from its background. Cluttered arrays are the norm in ordinary environments.
