Perception 2 l.jpg
This presentation is the property of its rightful owner.
Sponsored Links
1 / 20

Perception 2 PowerPoint PPT Presentation


  • 170 Views
  • Uploaded on
  • Presentation posted in: General

Perception 2. Top-Down Processes. Figure 2-19 An example of context effects in perception. Perceptual Set Context Effects. The same physical stimulus can be interpreted differently depending on perceptual set, e.g., context effects.

Download Presentation

Perception 2

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Perception 2 l.jpg

Perception 2


Figure 2 19 an example of context effects in perception l.jpg

Top-Down Processes

Figure 2-19An example of context effects in perception.


Slide3 l.jpg

Perceptual SetContext Effects

  • The same physical stimulus can be interpreted differently depending on perceptual set, e.g., context effects.

  • When is the middle character the letter B and when is it the number 13?


Top down processes l.jpg

Top-Down Processes

  • Perceptual Learning


Top down processes5 l.jpg

Top-Down Processes

  • Change Blindness

    http://viscog.beckman.uiuc.edu/grafs/demos/10.html


Top down processes6 l.jpg

Top-Down Processes

  • Word Superiority Effect

K

K

D

WORK

OWRK


Bottom up and top down processing working together l.jpg

Flying Animal

Bottom-Up and Top-Down Processing working together

_at

Word Perception

  • Connectionist Model

Words

Bat

Letters

B

Fox

Bat

Fat

Features

(lines)

I

Rat

Cat


Slide8 l.jpg

Figure 2-24 (p. 73)Example of stimuli used in the PET scan study of processing words. See text for explanation.

Word Perception

  • Neuropsychological Perspective


Direct perception vs constructivist approach l.jpg

Direct Perception vs. Constructivist Approach

  • Biological motion

  • http://www.psico.univ.trieste.it/labs/acn-lab/eng_p/e051c1m1_curr.html


Optic flow l.jpg

Optic flow


Slide11 l.jpg

Direct Perception

  • Affordances:

    • Information from the stimulus that specifies how it can be used


Slide12 l.jpg

(Dorsal)

(Ventral)


Visual agnosia l.jpg

Visual Agnosia

http://scien.stanford.edu/class/psych221/projects/06/cukur/intro_files/image021.jpg


Visual agnosia14 l.jpg

Visual Agnosia

  • Associative Visual Agnosia

    • Can copy, but unaware what it is; cannot assign meaning to object

    • Difficulty in transferring visual info into words

  • Apperceptive Visual Agnosia

    • Cannot recognize by shape

    • Cannot copy drawings

    • Often involves ‘prosopagnosia’

http://scien.stanford.edu/class/psych221/projects/06/cukur/intro_files/image021.jpg


Slide15 l.jpg

Agnosia


Identification of faces and members of categories prosopagnosia l.jpg

Identification of Faces and Members of CategoriesProsopagnosia

The Fusiform Face Area:

http://www.psy.vanderbilt.edu/faculty/gauthier/picts/mona_lisa.jpg


Thatcher illusion l.jpg

Thatcher illusion

http://www.face-rec.org/interesting-papers/Other/SchCarLed2003.pdf


Subliminal perception l.jpg

Subliminal Perception

  • Can subliminal messages change our behaviors?


  • Login