Three of four severely retarded adolescents and young adults learned to use computer-based lexigrams to request foods and, subsequently, objects. Additional request experience with lexigrams resulted in consistent improvement on labeling and comprehension tasks, emergence of subject-initiated lexigram communications, and facilitation of spoken…

Contemporary society is an "information society" where much of the information has a visual nature. This text uses semiotic and psychological concepts to help students gain understanding of how meaning is found in visual phenomena and how minds process images. Focus is upon mass media and popular culture. Theoretical discussions are…