Current studies have not yet reached consensus on the exact purpose of amusement, though theories have been advanced in the fields of psychology, psychiatry and sociology. In addition, the precise mechanism that causes a given element (image, sound, behavior, etc.) to be perceived as more or less 'amusing' than another, similar element to a particular individual is not clearly understood.
Brockton Art Center (Brockton, Mass.). American Pastimes: [exhibition catalog], Brockton Art Center, Fuller Memorial, Brockton, Massachusetts, Jan. 27-Apr. 17, 1977. Roger T. Dunn ... curator [and author of the] catalogue; research assistant, Richard Campbell. Brockton, Mass.: Brockton Art Center, Fuller Memorial; Bedford, Mass.: printed by W.E. Andrews Co., 1976. 44 obl. p., amply ill. Without ISBN