Facial Distortions and Prosopometamorphopsia | Brad Duchaine

In this special episode of Brain in a Vat, Brad Duchaine from the Psychological and Brain Sciences Department at Dartmouth discusses prosopometamorphopsia (PMO) – a condition where individuals see distorted faces. The episode explores various manifestations of PMO, including seeing demonic features, dragons, or entirely different faces, and distinguishes it from prosopagnosia (face blindness). It delves into the neurological basis of PMO, touching upon structural and functional differences in the brains of those affected. We discuss the significant impact PMO and prosopagnosia have on individuals' social interactions and quality of life, as well as potential management techniques such as using glasses or colored lights to reduce distortions.   00:00 Introduction and Guest Presentation 00:20 Exploring the Case of Face Distortion 03:19 Understanding the Nature of Distortions 05:49 Comparing Prosopagnosia and PMO 07:17 The Role of Visual System in Face Recognition 10:01 Impact of Face Recognition on Social Interactions 14:16 The Spectrum of Face Recognition Abilities 16:20 The Role of AI and Hallucinations in Face Recognition 23:48 Understanding the Diagnosis of Face Recognition Disorders 30:20 Understanding Prosopagnosia: Prevalence and Characteristics 31:59 The Mystery of PMO: Prevalence and Need for More Research 32:46 Exploring the Impact of Prosopagnosia and PMO on Social and Sexual Relationships 33:23 The Intersection of PMO and Other Psychiatric Conditions 37:03 The Struggles and Challenges of Living with Prosopagnosia and PMO 41:02 Potential Treatments and Coping Mechanisms for PMO 51:22 The Neurological Basis of PMO and Prosopagnosia 54:51 Testing and Characterizing PMO: A Deep Dive into Research Methods 59:54 Understanding the Perception and Processing of Faces in PMO

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