Dr. John Conolly described insanity in 1850 as "A disease of perception combined with an inability to tell whether these changes were real or not." Anton's Syn

Dr. John Conolly described insanity in 1850 as "A disease of perception combined with an inability to tell whether these changes were real or not." Anton's Syndrome: Excerpt from https://www.ncbi.nlm.nih.gov/books/NBK538155/ https://www.ncbi.nlm.nih.gov/books/NBK538155/ : Though the patient is blind, he will behave and talk as if he has normal vision. Attention is aroused; however, when the patient is found to collide with pieces of furniture, to fall over objects, and to experience difficulty in finding his way around. They may try to walk through a wall or a closed door on their way from one room to another. Suspicion is still further alerted when they begin to describe people and objects around them who do not exist. Mental confusion may also be seen. Patients with ABS may give excuses for their blindness. They may explain that their inability to see is because of the lack of proper lighting, and they may try their best to prove that they are not blind, thereby putting themselves in danger. One of the earliest descriptions of this syndrome is found in Seneca's "Moral Letters to Lucilius".