Researchers at École Polytechnique Fédérale de Lausanne (EPFL) are studying brain activity in the hopes of deciphering the mechanisms behind the brain’s decision-making process. By monitoring the activity of neurons directly after a stimulus, and using algebraic topology to visualize that activity, computers are able to recognize patterns in the overwhelming amount of data. Kathryn Hess Bellwood, PhD describes how the research output seems to show a clear delineation between when the brain is processing the stimuli and the exact moment a decision is made.

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