FIGURE 2. Real-time control of 1D hand movements.
From the following article:
Real-time prediction of hand trajectory by ensembles of cortical neurons in primates
Johan Wessberg, Christopher R. Stambaugh, Jerald D. Kralik, Pamela D. Beck, Mark Laubach, John K. Chapin, Jung Kim, S. James Biggs, Mandayam A. Srinivasan and Miguel A. L. Nicolelis
Nature 408, 361-365(16 November 2000)
doi:10.1038/35042582
a, b, Coherence analysis reveals that most cortical neurons are significantly coupled with different frequency components of the movements. c, d, Observed (black) and real-time predicted 1D hand movements using linear (red) and ANN (blue) models in monkey 1 (c) and 2 ( d). e, f, Correlation coefficient variation for predicted hand movements, using linear (red) and ANN (black) models, in one recording session in monkey 1 (e) and 2 (f). g, Real-time 1D movements of a local (blue) and remote (red) robot arm obtained in monkey 1 by using the linear model.