DRAFT

Announcements

Congratulations to Srinivas Chivukula for earning his PhD and on his new position as Assistant Professor of Neurosurgery at the University of Texas Southwestern Medical School.

Nature News Feature by Liam Drew: The Brain-Reading Devices Restoring Movement, Touch and Speech. <Link to the page> pdf copy

Congratulations to Sofia Sakellaridi on her new position as an Assistant Researcher in the Bioengineering Department and Lecturer in the Computer Science Department at University of California, Riverside.

New Publications

R. A. Andersen, T. Aflalo. "Preserved cortical somatotopic and motor representations in tetraplegic humans" 2022 Current Opinion in Neurobiology 74:102547. <pdf version>

S. K. Wandelt, S. Kellis, D. A. Bjånes, K. Pejsa, B. Lee, C. Liu, R. A. Andersen. "Decoding grasp and speech signals from the cortical grasp circuit in a tetraplegic human" 2022 Neuron 110, 1-11. doi: https://doi.org/10.1016/j.neuron.2022.03.009 <pdf version>

T. Aflalo, C. Zhang, B. Revechkis, E. Rosario, N. Pouratian, R. A. Andersen. "Implicit mechanisms of Intention" 2022 Current Biology 32, 1-10. https://doi.org/10.1016/j.cub.2022.03.047 <pdf version>

Feinsinger, A., N. Pouratian, H. Enadi, R. Adolphs, R. Andersen, M. Beauchamp, E. Chang, N. Crone, J. Collinger, I. Fried, A. Mamelak, M. Richardson, U. Rutishauser, S. Sheth, N. Suthana, N. Tandon, D. Yosher. "Ethical commitments, principles, and practices guiding intracranial neuroscientific research in humans" Neuron. 2022. https://doi.org/10.1016/j.neuron.2021.11.011

Andersen, R.A., T.Aflalo, L. Bashford, D. Bjanes, S. Kellis. "Exploring Cognition with Brain-Machine Interfaces" Annu. Rev. Psychol. 2022. 73:131–58. <pdf version>

Guan, C., T. Aflalo, C. Y. Zhang, E. R. Rosario, N. Pouratian, R. A. Andersen (2021) "Preserved motor representations after paralysis" bioRxiv 2021.10.07.463105; doi: https://doi.org/10.1101/2021.10.07.463105

Research

Our behaviors are dictated by our intentions, but we have only recently begun to understand how the brain forms intentions to act. The posterior parietal cortex is situated between the sensory and the movement regions of the cerebral cortex and serves as a bridge from sensation to action. We have found that an anatomical map of intentions exists within this area, with one part devoted to planning eye movements and another part to planning arm movements (Andersen and Buneo 2002). The action plans exist in a cognitive form, specifying the goal of the intended movement.  Current studies involve examining decision making, stages in motor planning, coordinate transformations for sensory guided movements and motion perception.  In recent years we have also used the findings from these animal studies to develop brain-machine interfaces using intention signals recorded from the posterior parietal cortex of tetraplegic human participants (Aflalo et al. 2015).

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