His physical movements received criticism because it was seen as him imitating those with a physical disability. Through the years, the disability that has been attached to his comedic persona has not been physical, but mental. Neuroticism and schizophrenia have been a part of Lewis' persona since his partnership with Dean Martin; however, it was in his solo career that these disabilities became the basis of his films and the character. In films such as "The Ladies Man" (1961), "The Disorderly Orderly" (1964), "The Patsy" (1964) and "Cracking Up" (1983), there is either neuroticism, schizophrenia, or both that drive the plot. Lewis was able to explore and dissect the psychological side of his persona, which provided a depth to the character and the films that was not present in his previous efforts.