Detailed Instructions: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
Q: When the need to process visual information as rapidly as possible arises , for example in an emergency situation , the visual system may operate only in shades of gray , with the extra information load in adding color being dropped .
A:
In certain cases when it is important to understand information very quickly , the visual system may drop the colors , and only work in shades of gray .