lecture 3 - CognitivePsychology 10/25/104:34PM 23:33...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Cognitive Psychology 10/25/10 4:34 PM 23:33 Cognitive means to do with  knowledge  and  information                                     Perception Perceptual Organization     Billions of photons/light-rays hit the retina at the back of your eye.  Your mind  organizes  them into powerful, cohesive objects set in space.  This process of  organizing  involves  grouping  the stimuli together into objects.  Notice that because, there are billions of points of light, hitting he retina, there are  almost infinite number of alternative groupings that you can make.  “Perceptual Organization” is the study of why the perceptual system chooses one  grouping as apposed to the alternatives  Theory offered by the GESTALT SCHOOL       Gestalt School: German/Austria 1920s-1930s  The main idea put forward by this school was that the perceptual system groups  by using  criteria  – and these criteria are really aesthetic criteria  Examples of Gestalt Criteria     
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Good continuation  Consider the following diagram: Here are alternative groupings of the diagram: Why do we choose the first group and not the second one? Because the first  grouping has nice smooth lines. Our minds choose the smoothest grouping  ………………….in other words………………………. So there are several possible groupings.  The above shows only two.  But the perceptual system chooses alternative (I), because in this alternative, the  lines are the smoothest; i.e., they have “good continuation” CRITERION OF GOOD CONTINUATION Put points in the same grouping if the continuation is the smoothest
Background image of page 2
Proximity       A                                       B Both rectangular arrays have 2 X 3 dots. Fig (a) is grouped into columns because of the greater  proximity  of dots into the  columns Fig (b) is grouped into rows, because of the greater  proximity  of dots in rows.  CRITERION OF PROXIMITY Group things together if they are near to each other.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Similarity      Same distance vertically and horizontally.  So, criterion of proximity does not apply here However, stimuli are grouped into columns because the dots are  within a column are more similar than in rows.  CRITERION OF SIMILARITY Put things into same grouping if they are similar Symmetry    
Background image of page 4
We group symmetric pairs rather than asymmetric pairs CRITERION OF SYMETRY CRITERION OF SYMETRY Put things in same grouping if they are  symetric
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Motion 23:33 Midterm Tests: Lecture notes + the 3 chapters in Kagan and Segal, on which you did the 6 mindmaps DON’T FORGET: Bring ordinary black-and-white photocopies of all 6 mindmaps to hand in before exam
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 19

lecture 3 - CognitivePsychology 10/25/104:34PM 23:33...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online