Chapter 4: Perception

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Last updated 7:59 PM on 9/17/26
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12 Terms

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Sensation

Stimulating the sense organs through absorption of raw energy through sensory organs.

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Perception

experiences resulting from the stimulation of the senses

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Identifying

What the stimulation IS

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Hemi-neglect

Sensation is ok, perception is not

<p>Sensation is ok, perception is not</p>
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Agnosia

Inability to identify objects

<p>Inability to identify objects</p>
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Prosopagnosia

Inability to recognize faces

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Bottom Up processing

¨Starts with (“driven by”) incoming info from environment (external stimulus)

<p><span>¨Starts with (“driven by”) incoming info from environment (external stimulus)</span></p>
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Top Down processing

¨Starts with (“driven by”) person’s knowledge, experience, expectations, goals

<p><span>¨Starts with (“driven by”) person’s knowledge, experience, expectations, goals</span></p>
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Direct perception theories focus on?

  • Focus primarily on bottom-up processing

  • Perception comes directly from stimuli in the environment

  • Parts are identified and put together, and then recognition occurs


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Template Matching

¨We “have” templates in our mind for basic objects, shapes, etc. and all we have to do is “match” incoming info to a template to “recognize”

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Recognition-By-Components theory (RBC)

We perceive objects by perceiving elementary features (based on feature detectors)

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geons

three dimensional volumes

<p>three dimensional volumes</p>