NSCS 320 Lecture Notes - Lecture 5: Visual Search, Angle Of Rotation, Mental Rotation
7 Sep 2016
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Re-visiting the central question we"ve discussed in class: These figures are at a different 3-dimensional orientation and appear to be different, but the surfaces are the same. Stimuli was used by shepard and metzler and analyzed: The time to decide whether the figure in each pair is identical. Deciding whether each pair is identical increases with the amount of mental rotation necessary to align the figures. It is a perfectly linear relationship in response to rotation angle. The more you have to mentally rotate the image, the longer it takes to decide. There is more activation of v1 and v2 when the figure increased in angle of mental rotation. What we have in our mind can be mentally rotated. Subject needed to determine if the arrows on the image will meet with the appropriate amount of folding. Result: the more operation of folding --> the longer the reaction time and less accurate is the answer.
