Probing the Neural Processes Underpinning Decisions on a Continuum
My current research has two main focusses:
- using EEG signatures of decision formation to inform computational models of how the brain makes perceptual decisions
- understanding perceptual decisions with continuous outcomes
Most of our current understanding of perceptual decisions comes from choices with just two alternative outcomes. In this project we are using non-invasive recordings from the human electroencephalogram (EEG) to investigate decisions with a continuum of potential outcomes. See a recent presentation from the Neuromatch 4.0 conference, December 2021.
We recently developed a method to constrain computational models of perceptual decision making directly using motor preparation signals from human EEG (see preprint link). Watch our Research Assistant Pat Mc Keown describe a recent study using this method to understand value biases in decision making: