Regression

Excerpts:
“Case 3. Richard M. was referred to the Johns Hopkins Hospital on February 5, 1941, at 3 years, 3 months of age, with the complaint of deafness because he did not talk and did not respond to questions.”

“Following smallpox vaccination at 12 months, he had an attack of diarrhea and fever, from which he recovered in somewhat less than a week.”

“In September, 1940, the mother, in commenting on Richard’s failure to talk, remarked in her notes: I can’t be sure just when he stopped the imitation of words sounds. It seems that he has gone backward mentally gradually for the last two years.”