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PSYC339 Objects I Notes

by: Gabriella Smith

PSYC339 Objects I Notes PSYC 339

Gabriella Smith

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About this Document

These cover the first of three lectures that Professor Wood gave about Objects
Origins of the Mind
Justin Wood
Class Notes
objects, Psychology
25 ?




Popular in Origins of the Mind

Popular in Psychology (PSYC)

This 2 page Class Notes was uploaded by Gabriella Smith on Sunday September 25, 2016. The Class Notes belongs to PSYC 339 at University of Southern California taught by Justin Wood in Fall 2016. Since its upload, it has received 7 views. For similar materials see Origins of the Mind in Psychology (PSYC) at University of Southern California.


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Date Created: 09/25/16
Objects I Thursday, September 15, 2016 1:58 PM Nativism vs. Empiricism: Nativism - • Babies understand objects as well as adults do, as soon as they open their eyes Empiricism - • As infants open their eyes, their brains put experiences together through a learning process until they understand objects as well as adults Testing Between Theories: • What are object representation systems used as adults? ○ How do we understand the world? • What are its signatures? Do they exist in many ages/animals (suggest common core knowledge)? ○ How do we breakdown how we understand objects? Attention: • We as humans do not actually see everything ○ Drivers only attentive to a few things on the road at one time, even though it feels like you see everything Two object representation systems: - each system has signature limits • Object tracking system ○ Signature: Can track about 3 -4 things at one time ○ Signature: objects survive occlusion (can still see even if it travels behind barrier) § Invisible barriers: still holds true § More specifically: objects that implode/explode into existence behind/into barrier are much more difficult to track □ Brain does not track once object disappears completely ○ Signature: tracking operates over entire objects, not just individual parts of objects ○ Signature: cohesion and rigidity influence object tracking Objects, not cohesive substances behind/into barrier are much more difficult to track □ Brain does not track once object disappears completely ○ Signature: tracking operates over entire objects, not just individual parts of objects ○ Signature: cohesion and rigidity influence object tracking § Objects, not cohesive substances ○ Can be trained to track more objects at once ○ Limited to where things are at given time in specific manner?? ○ Visual system assumes objects travel as little as possible (straight line, most efficient) ○ Do not necessarily remember identities or locations of objects when tracking ○ Can still track even if identity changes ○ Operates over spatiotemporal information (when and where at given time) • Object recognition system ○ Signature: sensitive to color & shape information § Humans, animalsa ndmachines § Cubies, smoothies, spikeys ○ Signature: sensitive to perceived shape rather than physical shape ○ Signature: sensitive to non-accidental properties § Non-accidental properties: when you see objects, your brain asks if there are features (straight vs curved lines) that can be recovered (i.e. lines overlapping? They are likely con- uses this to infer 3D object) □ Put it in the right viewpoint so lines create corners, then illusion gives brain enough information for it to figure out what the object could possibly be (specific viewpoints) ○ Signature: we recognize objects as kinds of things (categories) ○ Cares about color and shape information -> important to recognize specifically what it is we are looking for ○ Supports ability to recognize kindsof objects ○ Tell people to recognize object, remove cues until unrecognizable § Color vs greyscale vs silhouette


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