Speaker
Description
A plethora of work links our perception of time to bodily states. How we move determines when we think things happened, how long they lasted, and when they'll happen again. Separately, movements of the body are intrinsically linked to perceptual decisions across animal species and are evident in human performance. For example, humans and animals exhibit so-called "changes of mind" on decision making tasks, where movement towards one choice response abruptly changes to a different one. In this talk, I will outline how movements in humans and rodents can be linked to decision-making and temporal processing, allowing for a "real time" readout of deliberative processes. In the first section, I will discuss how movements can enhance and alter decision processes during timing, linking them to distinct components of drift diffusion models and demonstrating their effectiveness at explaining differences in individuals with ADHD. In the second section, I will present modeling and EEG evidence explaining how changes of mind can occur in timing tasks, where time itself is the variable to be encoded. Altogether, the findings support a parallel process of timing and decision-making that each inform the other via movement.
