The tachistoscope has been used to test the limits of human visual perception such as determining the minimum exposure time needed for visual apprehension of various stimuli including shapes, colors, letters, words, and numbers.
How many dots are in tachistoscope?
A tachistoscope of the falling-door type, exposure cards having the following materials printed on them: (i) Each set of 3 Cards bearing 3 to 10 single dots. (i.e., 3 cards with 3 dots, 3 cards with 4 dots, etc.). The dots are to be arranged in different patterns.
Who invented span of attention?
The term “span of attention‟ refers to the number of objects which can be grasped in one short presentation. Sir William Hamilton (1859) was the first to carry experimental study in this field.