Search

Your search keyword '"Lemay, Michel A."' showing total 334 results
Start Over Author "Lemay, Michel A."
334 results on '"Lemay, Michel A."'

1. Intraspinal Stimulation

Author

Lemay, Michel, Giszter, Simon F., Migliore, Michele, Section editor, Linster, Christiane, Section editor, Cavarretta, Francesco, Section editor, Jaeger, Dieter, editor, and Jung, Ranu, editor

Published
2022
Full Text
View/download PDF

4. Query Completion Using Bandits for Engines Aggregation

Author

Durand, Audrey, Beaumont, Jean-Alexandre, Gagne, Christian, Lemay, Michel, and Paquet, Sebastien

Subjects
Computer Science - Information Retrieval
Abstract

Assisting users by suggesting completed queries as they type is a common feature of search systems known as query auto-completion. A query auto-completion engine may use prior signals and available information (e.g., user is anonymous, user has a history, user visited the site before the search or not, etc.) in order to improve its recommendations. There are many possible strategies for query auto-completion and a challenge is to design one optimal engine that considers and uses all available information. When different strategies are used to produce the suggestions, it becomes hard to rank these heterogeneous suggestions. An alternative strategy could be to aggregate several engines in order to enhance the diversity of recommendations by combining the capacity of each engine to digest available information differently, while keeping the simplicity of each engine. The main objective of this research is therefore to find such mixture of query completion engines that would beat any engine taken alone. We tackle this problem under the bandits setting and evaluate four strategies to overcome this challenge. Experiments conducted on three real datasets show that a mixture of engines can outperform a single engine., Comment: Presented at The 3rd Multidisciplinary Conference on Reinforcement Learning and Decision Making (RLDM), June 11-14 (2017), University of Michigan, USA

Published
2017

7. Electrical Stimulation of Distal Tibial Nerve During Stance Phase of Walking May Reverse Effects of Unilateral Paw Pad Anesthesia in the Cat.

Author

Hangue Park, Klishko, Alexander N., Kyunggeune Oh, Zhang, Celina, Grenga, Gina, Herrin, Kinsey R., Dalton IV, John F., Kistenberg, Robert S., Lemay, Michel A., Pitkin, Mark, DeWeerth, Stephen P., Prilutsky, Boris I., Park, Hangue, Oh, Kyunggeune, and Dalton, John F

Subjects
ELECTRIC stimulation, TIBIAL nerve, NEURAL stimulation, CENTER of mass, ANESTHESIA, CATS
Abstract

Cutaneous feedback from feet is involved in regulation of muscle activity during locomotion, and the lack of this feedback results in motor deficits. We tested the hypothesis that locomotor changes caused by local unilateral anesthesia of paw pads in the cat could be reduced/reversed by electrical stimulation of cutaneous and proprioceptive afferents in the distal tibial nerve during stance. Several split-belt conditions were investigated in four adult female cats. In addition, we investigated the effects of similar distal tibial nerve stimulation on overground walking of one male cat that had a transtibial, bone-anchored prosthesis for 29 months and, thus, had no cutaneous/proprioceptive feedback from the foot. In all treadmill conditions, cats walked with intact cutaneous feedback (control), with right fore- and hindpaw pads anesthetized by lidocaine injections, and with a combination of anesthesia and electrical stimulation of the ipsilateral distal tibial nerve during the stance phase at 1.2× threshold of afferent activation. Electrical stimulation of the distal tibial nerve during the stance phase of walking with anesthetized ipsilateral paw pads reversed or significantly reduced the effects of paw pad anesthesia on several kinematic variables, including lateral center of mass shift, cycle and swing durations, and duty factor. We also found that stimulation of the residual distal tibial nerve in the prosthetic hindlimb often had different effects on kinematics compared with stimulation of the intact hindlimb with paw anesthetized. We suggest that stimulation of cutaneous and proprioceptive afferents in the distal tibial nerve provides functionally meaningful motion-dependent sensory feedback, and stimulation responses depend on limb conditions. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

36. Electrical Stimulation of Distal Tibial Nerve During Stance Phase of Walking May Reverse Effects of Unilateral Paw Pad Anesthesia in the Cat

Author

Park, Hangue, primary, Klishko, Alexander N., additional, Oh, Kyunggeune, additional, Zhang, Celina, additional, Grenga, Gina, additional, Herrin, Kinsey R., additional, Dalton, John F., additional, Kistenberg, Robert S., additional, Lemay, Michel A., additional, Pitkin, Mark, additional, DeWeerth, Stephen P., additional, and Prilutsky, Boris I., additional

Published
2023
Full Text
View/download PDF

38. Chemogenetic modulation of sensory afferents induces locomotor changes and plasticity after spinal cord injury

Author

Eisdorfer, Jaclyn T., primary, Sobotka-Briner, Hannah, additional, Schramfield, Susan, additional, Moukarzel, George, additional, Chen, Jie, additional, Campion, Thomas J., additional, Smit, Rupert, additional, Rauscher, Bradley C., additional, Lemay, Michel A., additional, Smith, George M., additional, and Spence, Andrew J., additional

Published
2022
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results