Complex sentence: Unable to secure an appointment with the university, he emigrated to the United States in 1892, at first practicing neurology and teaching at the University of Chicago, where he was exposed to the ideas of the Chicago functionalists.
Split into simpler sentences: Unable to secure an appointment with the university, he emigrated to the United States in 1892. After moving to the United States, Meyer first practiced neurology and teaching at the University of Chicago, where he was exposed to the ideas of the Chicago functionalists.