Regarding this article, did the researchers image the brains of disabled people who know the meaning of a verb but can’t perform the action, or of people without any disabilities who know the meaning of a verb such as “scull” but have never performed the action? It seems that without the above-mentioned types of tests, the researchers’ conclusion is a little shaky.

Michael Ellison
Clayton, N.C.

The researchers acknowledge that such studies should be conducted .—B. Bower