Saturday, January 19, 2008

Exercise 3:Gestalt Laws of Pattern Perception. Kristen, Miriam and Iliana




COMMON FATE


The Common fate principle (movement) that determines that when we see something move together, then we see it as a unit.



  • For example, imagine a camouflaged military vehicle in the field. When stationary, the vehicle blends in with the background, and the vehicle is difficult to detect. However, the vehicle is easily visible when it moves. We perceive the vehicle, with all its elements moving in unison, as a unitary figure, distinct from its background.

Orientation Sensitivity is visual processing, which occurs when certain line orientations are more quickly and easily detected than others. This strategy of conveying information is based on two phenomena: oblique effect and pop-out effect.
Oblique effect is the phenomena where line orientation is more accurately noted and judged when close to horizontal and vertical orientation, as opposed to oblique.
Pop-out effect is the phenomena where certain elements are perceived quicker and easier when in a display since they tend to pop out as figure elements.

The example to the left is one of the strongest orientation sensitivity effects, which happens when both pop-out and oblique effects are combined. The target element in each case is easily detected as it differs from the rest by 30 degrees of more. The pop-out effect is caused by a change of visual stimuli, which helps detect differences in line orientation and patters. The oblique effect is seen by the perfect orientation of the elements in rows, forming a kind of vertical line orientation.


INTEREFERENCE EFFECTS was posted by Miriam on another post

By: Kristen, Iliana, and Miriam

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