What defense mechanism are used in a beautiful mind?

In "A Beautiful Mind," several defense mechanisms are depicted, particularly denial and projection. John Nash often denies the reality of his hallucinations, convincing himself that they are real and not a product of his schizophrenia. Additionally, he projects his feelings of insecurity and paranoia onto others, interpreting their actions as threats or conspiracies against him. These mechanisms illustrate his struggle to cope with the challenges posed by his mental illness.