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Hearing Voices and Paranoid Delusions: Inside a Schizophrenic Brain | Big Think

Hearing Voices and Paranoid Delusions: Inside a Schizophrenic Brain Watch the newest video from Big Think: https://bigth.ink/NewVideo Join Big Think Edge for exclusive videos: https://bigth.ink/Edge ---------------------------------------------------------------------------------- Now and then, we've all thought we heard someone calling our name, or noticed a strange coincidence. But for people with schizophrenia, these can take on a much more nefarious quality. Dr. Vikaas Sohal walks us through what it feels like to be inside a schizophrenic brain. ---------------------------------------------------------------------------------- VIKAAS SOHAL: Dr. Vikaas Sohal is Assistant Professor of Psychiatry at UC San Francisco. His research has focused for years on cognition and functioning. He has written extensively on aging in schizophrenia, functional impairments in severe mental illness, the cognitive effects of typical and atypical antipsychotics, as well as studying the effects of cognitive enhancing agents in various conditions, including schizophrenia, dementia, affective disorders, and traumatic brain injury. Dr. Sohal is also a board certified psychiatrist and continues to see outpatients approximately one half day each week. He directs an annual conference on cognition that is an official satellite of the International Congress on Schizophrenia Research and the Schizophrenia International Research Society. Dr. Sohal earned his A.B. in Applied Mathematics from Harvard University, his M.A.St. in Mathematics from Cambridge, and his MD, PhD from Stanford University. He completed his graduate work in the lab of John Huguenard, then stayed at Stanford to complete his psychiatry residency and a postdoctoral fellowship in the lab of Karl Deisseroth. ---------------------------------------------------------------------------------- TRANSCRIPT: Vikaas Sohal: Many of us often have the experience of thinking we heard someone calling our name and then realizing that wasn't really the case, and we just move on, and we forget about it. Sometimes we notice coincidences, like, "Oh, there were a couple of cars on the street," and again, we pay no attention to it. But for someone with schizophrenia, these experiences take on a vastly different kind of feeling. So you might notice, "Oh, there were three red cars on the street," and instead of just forgetting about it, you start thinking, "Well, why were there three red cars on the street? Maybe it has something to do with me. Maybe these people are actually coming to monitor me or do something that would harm me," and you start working through some kind of plot or conspiracy related to that coincidence that you noticed. The symptoms that people are most familiar with in schizophrenia are often hearing voices or having paranoid delusions and paranoid thoughts. We now know that, in addition to those kinds of symptoms, many people with schizophrenia have trouble focusing, paying attention, and remembering things. Many people talk about hearing voices and mean different things. Sometimes people will say, "Oh, yeah, when I'm thinking about what to do, I hear a voice in my head that tells me this would be the right thing to do, or this would be the wrong thing to do, or that gives me an idea." And when individuals with schizophrenia talk about hearing voices, they describe it very, very differently. It's really a voice, that they can't tell the difference between that voice and a voice coming from a person sitting right next to them in a room. And it sounds absolutely real. It sounds loud. Sometimes it's so loud that they can't stop paying attention to it. And sometimes the voices are just calling their name, but sometimes the voices are saying much more complicated things. Sometimes they're giving them commands, telling them what to do. Sometimes they're commenting on what they're doing, often in a negative or derogatory way. It comes as no surprise that the brain is a complicated place. There's information flying all over the brain, and the brain has to get that information to the right place and decide what to do with it. We think that, perhaps, in schizophrenia some of the problems come because information isn't getting to the right place, or, sometimes when information does get to the right place, the brain doesn't know what it should pay attention to and what it should ignore. This is really important. In our everyday lives, we might hear a car alarm in the background, and we have to know not to pay attention to that, but we might also hear a baby crying in the background, and that probably is something that we need to pay attention to. And so, if your brain's not able to act as an executive and say, "This is what's important and this is what's not important," it becomes very difficult to sort ....... To read the transcript, please go to https://bigthink.com/videos/vikaas-so...