Announcements

Congratulations to Sumner Norman on being awarded a Della Martin Fellowship.

Congratulations to Luke Bashford on being awarded a BBE Postdoctoral Fellowship.

New Publications

Chivukula, S., C. Zhang, T. Aflalo, M. Jafari, K. Pejsa, N. Pouratian and R. A. Andersen (2020). "Neural encoding of felt and imagined touch within human posterior parietal cortex." bioRxiv: 2020.2007.2027.223636.

Aflalo, T., C. Zhang, E. R. Rosario, N. Pouratian, G. A. Orban and R. A. Andersen (2020). "A shared neural substrate for action verbs and observed actions in human posterior parietal cortex." bioRxiv: 2020.2004.2020.039529.

Jafari, M., T. N. Aflalo, S. Chivukula, S. S. Kellis, M. A. Salas, S. L. Norman, K. Pejsa, C. Y. Liu and R. A. Andersen (2020). "Neural correlates of cognitive motor signals in primary somatosensory cortex." bioRxiv: 2020.2004.2020.041269.

Zhang, C. Y., T. Aflalo, B. Revechkis, E. Rosario, D. Ouellette, N. Pouratian and R. A. Andersen (2020). "Preservation of Partially Mixed Selectivity in Human Posterior Parietal Cortex across Changes in Task Context." eNeuro 7(2).

Pu, H., J. Lim, S. Kellis, C. Y. Liu, R. A. Andersen, A. H. Do, P. Heydari and Z. Nenadic (2020). "Optimal artifact suppression in simultaneous electrocorticography stimulation and recording for bi-directional brain-computer interface applications." J Neural Eng 17(2): 026038.

Norman, S. L., D. Maresca, V. N. Christopoulos, W. S. Griggs, C. Demene, M. Tanter, M. G. Shapiro and R. A. Andersen (2020). "Single Trial Decoding of Movement Intentions Using Functional Ultrasound Neuroimaging." bioRxiv: 2020.2005.2012.086132.

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).

figure_3_scherberger_475_copy.jpg