Yup. https://books.google.com/books?id=DR15NJb8bJcC&pg=PA31&lpg=PA31&dq=crying+correlated+with+empathy&source=bl&ots=3vXSaDO2Ik&sig=PwzHJGGzt53jWtSHaAFmFyGB4_g&

Yup. https://books.google.com/books?id=DR15NJb8bJcC&pg=PA31&lpg=PA31&dq=crying+correlated+with+empathy&source=bl&ots=3vXSaDO2Ik&sig=PwzHJGGzt53jWtSHaAFmFyGB4_g&hl=en&sa=X&ved=0ahUKEwiIg_uT5fvMAhUCOVIKHYJLB7YQ6AEINTAH#v=onepage&q=crying%20correlated%20with%20empathy&f=false https://books.google.com/books?id=DR15NJb8bJcC&pg=PA31&lpg=P... The linked page mentions it, and theres more data later in the book.