"In The Hidden Prejudice, Michael L. Perlin reveals a pattern of prejudice against mentally disabled individuals that keeps them from receiving equal treatment under the law. Sanism, like racism, is a prejudice against a minority population. This mostly hidden prejudice against mentally ill people has pervaded Western culture throughout history, and Perlin documents how sanism continues to affect our culture and legal system. Under the pretext of "improving" society, a judge, lawyer, or fact-finder may ignore faulty evidence. This testimonial dishonesty is often based on the false belief that the mentally disabled are not responsible or intelligent enough to deserve the full rights of citizenship. Perlin argues that these are sanist decisions and explores the roots and results of these decisions."--BOOK JACKET.