![](https://static01.nyt.com/images/2018/05/02/science/02ECIGARETTES1/02ECIGARETTES1-mediumThreeByTwo440.jpg)
By KATIE THOMAS from NYT Health https://ift.tt/2rcA2xL
The test asked for the names of famous people (for example, authors, politicians and actors) based on 20 questions about them. Study participants also were given definitions of 20 little-used words and 20 easy words, and asked to produce the corresponding word.