How do paragraphs 1-2 contribute to the development of ideas in the text "Why Do People Follow The Crowd"?

The main idea is most tests on the people lead the crowd to follow each other.

Explanation:

Dr. Gregory wants to know why people follow what others do and want to experiment. In the first experiment he rotated 3D objects to see if they were the same or different. The group wrote their answers but Tony followed them. Tony agreed with both the correct and wrong answers. In the second experiment, they were checked how they behaved in a restaurant. One person ate strangely. Dr. Gregory found that people who followed others had their visions interupted the brain did not concentrate in the thinking part.