Orientation Sensitivity

Orientation Sensitivity

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ORIENTATION SENSITIVITY 



Orientation sensitivity refers to a case in human visual processing system whereby certain line orientation is better detected , perceived ,  and discriminated than other line orientation ( eg : oblique contours ) . 

Human visual perception shows greater sensitivity towards horizontal and vertical orientation. Orientation sensitivity  is derived from  two phenomena happening in human optical system which are oblique effect and pop out effect . 

Oblique Effect 

Oblique effect occurs because of the human ability to better perceive horizontal and vertical line. Our neurons react better towards horizontal and vertical stimuli. When people look at designs with primary elements that are vertical or horizontal, they are often judged to be more pleasing to the eyes than a similar ones where primary elements are oblique.
 
Figure 1.0 The slanted pole in CAIS

Figure 1.0 shows the pole found in CAIS which is designed to be slanted to the right compared to the others which are straight. 

Pop - out Effect 

 Tendency for certain element to  stand out among the other elements in a display . This effect can be combined with oblique effect. Elements with pop up effect is easily detected.

figure 1.1 the interior of a cafe in Summer Mall

The slanted dark wooden plank shown in figure 1.1 shows the concept of pop out effect. It is the only plank that does not stand vertically nor horizontally. The fact that it has different colour than the rest also add the pop up effect to the design.



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