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Perception Lecture

by: Emily Scelta-Neff

Perception Lecture PIA 292

Marketplace > Adelphi University > PIA 292 > Perception Lecture
Emily Scelta-Neff
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About this Document

The first lecture uploaded for PIA-292, Adelphi University, taught by Professor Fareri. This document describes thoroughly the concepts of top-down processing, bottom-up processing, depth perceptio...
Cognitive Psychology
Fareri, D
Class Notes
Psychology, cognition, processing, sensory, speech




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This 2 page Class Notes was uploaded by Emily Scelta-Neff on Saturday September 17, 2016. The Class Notes belongs to PIA 292 at Adelphi University taught by Fareri, D in Fall 2016. Since its upload, it has received 2 views.


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Date Created: 09/17/16
  Perception Lecture / Chapter 3 Perception is a sensory experience; all sensory experiences begin with bottom up processing. Bottom up processing ​ is a data-driven process, relying on information taken in from the environment. In the example of sight, light hitting the retina triggers data processing. Our sensory system also makes up for its own inadequacies. All data taken in through the retina is in 2-D because the retina is flat; however, we are able to disambiguate depth and see the world as it really is. The perceptual system also takes distance into account when a person is perceiving size. Objects may appear the same size on our retinas although this is an optical illusion. Size consistency makes us perceive objects as remaining the same size even when they move to different distances away from us, but we are able to overcome this and see the world for how it really is using conceptual clues. Top-down processing ​ influences the sensory system. It is the processing of data that is heavily influenced by a person’s expectations based on their prior knowledge. Top-down   processing influences how we interpret spoken language. Because we have prior knowledge of how our first language works, we are able to distinguish pauses in speech that signal the end of a word or sentence, and natural pauses in speech that mean nothing at all. Top-down processing also influences our perception of pain. Although pain is usually processed according to the bottom-up model, depending on how much attention we give to the amount of pain we receive, we can control how much pain we feel or if we feel pain at all.  


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