William Hirstein

William Hirstein is an American philosopher born in 1966, with primary interests in the philosophy of mind, philosophy of language, metaphysics, cognitive science, and analytic philosophy. He earned his Ph.D. in philosophy from the University of California, Davis, under the guidance of Richard Wollheim. Following his doctoral studies, he conducted post-doctoral research at the University of California, San Diego, collaborating with Patricia Churchland and Vilayanur S. Ramachandran. His post-doctoral work focused on neurological syndromes that lead to confabulation, investigating cases in split-brain patients and individuals with anosognosia or Capgras delusion. Hirstein's 2005 book, *Brain Fiction*, presents an epistemic theory of confabulation, suggesting it arises from errors in memory or perception coupled with a failure of prefrontal executive processes to correct these errors. In his 2012 book, *Mindmelding: Consciousness, Neuroscience, and the Mind's Privacy*, Hirstein addresses the mind-body problem by positing the possibility of direct conscious experience sharing between individuals. He argues that if conscious brain states are unique in not being knowable by multiple persons, it hinders understanding minds as physical systems. Hirstein proposes 'mindmelding' as a potential mechanism for sharing conscious experiences by connecting brain regions involved in self-awareness and sensory processing. He uses the case of conjoined twins Krista and Tatiana Hogan as a potential example of naturally occurring mindmelding, highlighting their unique thalamic connection. Hirstein has authored several books, including *On Searle*, *On The Churchlands*, *Brain Fiction*, *Cognitive Science: An Introduction to Mind and Brain* (co-authored), *Confabulation: Views from Neuroscience, Psychiatry, Psychology, and Philosophy* (edited), *Mindmelding*, and *Responsible Brains* (co-authored).