The CognAc lab explores various aspects of human performance with a focus on how people select, plan, and produce movement. We use a variety of methods, including behavioral studies in healthy and neurologically impaired populations, TMS, fMRI, EEG, ECoG, and computational modeling.
Our current work on skill acquisition focuses on the interaction of explicit and implicit learning mechanisms. In particular, moving in a novel environment (e.g., playing frisbee on a windy day) the motor system is automatically recalibrated, a process that occurs in an incremental manner. We can, though, use strategies to speed up the learning process. We are interested in how these different methods of learning interact. This work builds on the literature examining the relatioship of the cerebellum, parietal lobe, and prefrontal cortex in motor learning.We also want to understand how people select and prepare actions. In this line of research, we are applying ideas from the decision making literature to ask how people select a movement to accomplish a desired action goal. For example, how do we decide which hand to use to pick up a cup of coffee, and what are the contextual factors that influence this decision. These behavioral studies are complemented by TMS and fMRI work to investigate the dynamics of preparatory processes in the motor pathways, as well as neuropsychological studies involving patients with Parkinson's disease, cerebellar degeneration, or cortical lesions.
Complete List of Published Work:
1. Mechanisms for sensorimotor learning.
McDougle, S.D., Ivry, R.B., and Taylor, J.A. (2016). Taking aim at the cognitive side of learning in sensorimotor adaptation tasks. Trends in Cognitive Sciences, 20, 535-544.
2. Subcortical contributions to cognition.
Sokolov, A.A., Miall, R.C., and Ivry, R.B. (2017). The Cerebellum: Adaptive Prediction for Movement and Cognition. Trends in Cognitive Sciences, 21, 313-332. PMID: 28385461
3. Action selection and response preparation.
Duque, J., Greenhouse I., Labruna, L. and Ivry, R.B. (2017). Physiological markers of motor inhibition during human behavior. Trends in Neurosciences, 40, 219-236. PMID: 28341235
4. Neural mechanisms of temporal processing.
Breska, A. and Ivry, R.B. (2016). Taxonomies of Timing: Where Does the Cerebellum Fit In? Current Opinion in Behavioral Sciences, 8, 282-288.
Psychology/Cognitive Science 127: Cognitive Neuroscience (fall 2017)
Psychology 229: Cognitive Neuroscience Colloquium (fall 2017 and spring 2018)
Psychology 210a: Readings in Cognitive Neuroscience (spring 2018)