Research - Mental diseases

For my film trailer our plot was based a lot on mental diseases, as our location in the film plot was in an asylum. For this we had to research mental illnesses, and see which one would best fit our characters with these diseases. We ended up choosing schizophrenia, as it was suitable for our character with the split personalities, strange behaviour and unexplainable happenings. http://www.schizophrenia.com/family/perstory5.htm We also want to use props. We thought good ideas for this would be such as a rocking chair, straight jacket, ties, etc...