The Worst Disease You Can Get: Fatal Familial Insomnia and the I-Function
FFI has been discovered in only 28 families worldwide; it is an autosomal dominant gene mutation, meaning that a parent with the disease has a fifty percent chance of passing it on to his or her child (2)… the hallmark of FFI, which the aforementioned conditions don’t necessarily show, is the complete inability to sleep. The brain wave patterns that appear on FFI patients’ EEGs go up and down wildly, in a pattern completely unlike the normal sleep-wake cycle; they may still show patterns indicative of REM sleep at night, but they do not pass through the sleep stages that typically precede REM, and they can still move while in the REM stage (5). There are also unbelievable highs in pulse and blood pressure, excessive sweating and an eventual loss of coordination and other gross motor skills (including speech) before the victim finally falls into a coma-like state and dies (1). But, most horribly, the thinking portions of the I-function remain intact, even as the rest of the body deteriorates (4). Because FFI is invariably fatal, patients understand that they will die, can talk and write freely about their coordination deteriorates and understand their fate up until their death (5). Some diseases, like Alzheimer’s disease, are tragic because their victims lose the ability to describe their decline; in these diseases, the I-function deteriorates along with the physical body. But FFI is tragic for precisely the opposite reason; it leaves the I-function intact, even when its victims are clearly in physical agony.
