Abstract

The physiological mechanisms through which our decisions are turned into actions still remain largely undetermined. I will present some ongoing (and preliminary) work that leverages our recent advances in high-precision MEG (hpMEG) and promises to shed new light on this problem. I will focus briefly on the approach we employ for hpMEG, and show that this in principle allows for reliable assessment of deep (thalamic and BG) sources – a key requirement for fully understanding decision to action transformations. I will then present data showing how high and low frequency oscillations map onto deep and superficial cortical laminae during simple sensorimotor decisions, and furthermore scale with the degree of expectation about the forthcoming action.