Machine Learning Meetings and Events
Group Meetings: Group meetings are held Mondays from 11am to Noon (talk starts 11:10am) in D.L. Pratt 290C unless otherwise noted. Meetings are coordinated by Hugo Larochelle.
Tea Talks: Tea talks are held every Wednesday at 4:00pm in D.L. Pratt 290C. Talks should be simple, accessible, and not exceed 15 minutes. Speakers bring snacks, make tea, and provide a copy of the presented paper.
Group Meeting Feb 23, 2009: How do the properties of the musculoskeletal system shape neural activity in primary motor cortex?.
- Speaker: Timothy P. Lillicrap (Queen's) and Stephen H. Scott
- Abstract:
Primary motor cortex (M1) plays a central role in controlling voluntary behaviour. However, relatively little is known about how neurons in M1 participate in control. For example, the responses properties of M1 neurons recorded during sensorimotor tasks show population level biases, but the functional significance of these biases is simply not known. Where do M1 tuning biases come from? and what is their causal role? We demonstrate that in a dynamic neural network model optimized to perform control tasks, population level biases are shaped by the properties of the musculoskeletal system. We also show that the biases which emerge in the model match those observed in monkey motor cortex.
- Notes: in PT266