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Perception Task 5: From Visual Shapes to Objects

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The document has a summary of the mandatory literature for Task 5: 1) Goldstein Perceiving Scenes and Scenes (Ch.5). 2) Wolfe Perceiving and Recognizing Objects (Ch.4). It summarizes the e-reader document: 1) Dehaene, S. (2013). Inside the Letterbox: How Literacy Transforms the Human Brain.

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  • May 27, 2022
  • 24
  • 2020/2021
  • Class notes
  • Milene bonte
  • Tutorial 5
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TASK 5:

GOLDSTEIN CHAPTER 5:

PERCEIVING OBJECTS AND SCENES

Viewpoint invariance: the ability to recognize objects from different views (if you look at a
cat from the top and from its tail, it is still a cat)

Perceptual Organization: the process by which elements in the environment become
perceptually grouped to create our perception of objects. It has 2 components:

• Grouping: the process which the visual elements are put together into units
• Segregation: the process of separating one area or objects from another

,•


Gestalt Psychology:
the whole is different than the sum of its parts
(elements grouped together create larger objects)

Apparent movement: although movement is perceived,
nothing is actually moving

There are two separate lights that flash independently.
But we perceive them as on moving light.

, Illusory contours: the edges that create the triangle are called illusory contours
because there are no actual edges.




Principles of Perceptual Organizations:
Determines how elements in a scene become grouped together

Principle of good continuation:

• Points that result in straight or smoothly curving lines are seen as
belonging together
• Objects that are partially covered by other objects are seen as
continuing behind the covering object.

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