what concept is illustrated by the following study? participants were instructed to focus on either white or black objects, disregarding the other color. when a red cross passed across the screen, about one third of the subjects did not notice it.
a. bottom-up processing
b. inattentional blindness
c. sensory adaptation
d. top-down processing

The concept that is illustrated in the above study is b. inattentional blindness

Explanation:

Inattentional blindness the situation where one fails to notice an object that is within his vicinity, bu not expect to be there out of the reason that, an individual was fully concentrated on a different event, object task.In the above experiment. participants had instructions to focus on black and white only which they did, on concentration, they could not notice the red cross and hence a good example of inattentional blindness