Quiz 2-lecture 3

Psychology 240 with Gehring at University of Michigan - Ann Arbor

About this deck

By: Cinzia Yuet Tung Lau
Textbook:

Cognitive Psychology: Connecting Mind, Research and Everyday Experience (with Coglab 2.0 Online Booklet)
Created: 2009-01-22
Size: 10 flashcards
Views: 12

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Perception

The means by which information acquired from the environment via the sense organs is transformed into experiences of objects, events, sounds, tastes, etc.

4 different stage of perception?

Distal-actual distance from the thing we are trying to see, tree box, 3D
Proximal- pattern of light ray on the retina (sensory data, raw info from external on sensory organs) lot of info lost from distal stimulus, 2D
Representation - Actual perceptual experience of object, conscience experience
Reaction - What you say or do to indicate what perceive (cog psych to understand process of perception)

Lack of correspondence

Perceptual experience does not correspond to the distal stimulus.(external world)
Visual illusions (misperceptions)
Need to be study

Paradoxical correspondence

When proximal stimulus does not correspond to distal stimulus

But perceptual experience does
(paradoxically!) accurate

Direct perception

Environment provides all the necessary information for accurate perception.
All the information you need is in the proximal stimulus.
Stimulus information is unambiguous.
Our brains are pre-wired to pick up this information.

Movement helps us to pick up the information. (cue!!!!)

Constructivism

Perception uses data from the world and our prior knowledge and expectations.
Sensory information is often ambiguous.
Must rely on knowledge/expectations.

Bottom-up

information processing driven by stimulus data only. (proximal, info, create)
Direct perception: perception is purely bottom-up. (no expectation/knowledge)

Top-down

information processing driven by prior knowledge and expectations (hallucination, does not depend on proximal)

Sources of Depth Information

Extraretina: Accommodation, Convergence