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5a gestalt

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5a  gestalt 5a gestalt Presentation Transcript

  • We see everything for the first time.. We see everything for the first time.
  • Scientists, psychologists in particular, have attempted to discover how the human visual system perceives and grasps entities. One of the earliest and intuitively most acceptable theories about perception was proposed by Wertheimer in 1923, and later elaborated by Koffka in 1935. These Gestaltists formulated the principles or “laws” of grouping or patterning. Gestalt is a German word which means: whole, entity or entirety.
  • The whole is greater than the sum of its parts. View slide
  • • Figure-Ground We organize the world so some parts of a stimulus stand out (figure) in front of other parts (ground) View slide
  • • Figure-Ground
  • • Figure-Ground
  • • Figure-Ground
  • • Figure-Ground
  • • Figure-Ground
  • • Figure-Ground
  • • Figure-Ground
  • • Similarity Objects that look alike tend to be grouped together.
  • • Similarity
  • • Proximity • Elements close together tend to organize into units.
  • • Proximity Do you see rows or columns?
  • • Continuity • We see lines as being continuous if they do not bend sharply. • We group things together if they seem to form a continuous pattern.
  • • Continuity Continuous pattern Continuous line
  • • Closure • We tend to complete figures with gaps in them, by ignoring the gaps and mentally filling in what we believe should be there.
  • • Closure
  • • Closure
  • • Closure
  • • Continuity and Closure
  • • Simplicity • We tend to impose the simplest, best-fitting interpretation on any stimulus.
  • In the following picture, we tend to see overlapping simple geometric figures rather than complex polygons.
  • • Simplicity
  • Gestalt theory claims that problem solving is productive and reproductive.
  • Reproductive problem solving draws on previous experiences whereas productive problem solving involves insight and restructuring of the problem.
  • Reproductive problem solving could be a hindrance to finding a solution, since a person may fixate on the known aspects of a problem and so be unable to see novel interpretations that might lead to a solution.
  • •Visual Illusions • Reveal information about the visual system. • Sometimes derive from perspective cues.
  • Scale
  • Scale
  • Hidden Images
  • Hidden Images
  • Hidden Images
  • Ambiguities
  • Ambiguities
  • Ambiguities
  • Ambiguities
  • Point of View
  • Point of View The whole is different than the sum of its parts.
  • Point of View
  • Point of View
  • Point of View
  • Point of View
  • Point of View
  • Point of View
  • Point of View
  • Point of View
  • Point of View
  • Point of View
  • Point of View
  • Point of View
  • Subtleties Look at the following slide and identify who is in it.
  • Subtleties
  • Subtleties Try again?
  • Subtleties