Is consciousness an illusion? New theory claims the unconscious brain makes all decisions

BOSTON — Is your conscious mind really in charge of your decisions? A team in Boston has created a new theory of consciousness which tries to explain how it developed and what role it serves. Interestingly, researchers suggest that it’s actually a person’s unconscious brain that does all the work, with the conscious brain simply reacting to it.

Boston University Chobanian & Avedisian School of Medicine researcher Andrew Budson explains that consciousness is a person’s awareness of themselves and the world around them. This awareness is unique for everyone. However, Budson questions whether people are actively perceiving the world, or just remembering what their unconscious brain tells them.

“In a nutshell, our theory is that consciousness developed as a memory system that is used by our unconscious brain to help us flexibly and creatively imagine the future and plan accordingly,” the corresponding author and professor of neurology says in a university release. “What is completely new about this theory is that it suggests we don’t perceive the world, make decisions, or perform actions directly. Instead, we do all these things unconsciously and then—about half a second later—consciously remember doing them.”

Budson and co-authors Kenneth Richman and Elizabeth Kensinger came up with this new theory after discovering a number of phenomena that established theories about consciousness could not explain.

“We knew that conscious processes were simply too slow to be actively involved in music, sports, and other activities where split-second reflexes are required. But if consciousness is not involved in such processes, then a better explanation of what consciousness does was needed,” says Budson, who is also the Director of the Center for Translational Cognitive Neuroscience at the Veterans Affairs (VA) Boston Healthcare System.

How does this impact human behavior?

The study authors say this theory suggests that all of our decisions are made unconsciously — but the brain fools us into thinking we consciously decided to take action. When someone says to themselves that they’re only going to have a spoonful of ice cream and then finishes the entire container, researchers say it’s because their conscious mind is not controlling their decisions.

“Even our thoughts are not generally under our conscious control. This lack of control is why we may have difficulty stopping a stream of thoughts running through our head as we’re trying to go to sleep, and also why mindfulness is hard,” Budson explains.

The researchers believe that several neurologic, psychiatric, and developmental disorders may actually reveal problems with consciousness. These include Alzheimer’s, delirium, migraines, schizophrenia, and certain types of autism.

Their work may provide a new roadmap for doctors and scientists looking to help people deal with behavioral issues such as overeating.

The study is published in the journal Cognitive and Behavioral Neurology.

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