Saccades Exhibit Abrupt Transition Between Reactive and Predictive, Predictive Saccade Sequences Have Long-Term Correlations Export

@article{citeulike:223026, abstract = {To compensate for neural delays, organisms require predictive motor control. We investigated the transition between reaction and prediction in saccades (rapid eye movements) to periodically paced targets. Tracking at low frequencies (0.2-0.3 Hz) is reactive (eyes lag target) and at high frequencies (0.9-1.0 Hz) is predictive (eyes anticipate target); there is an abrupt rather than smooth transition between the two modes (a "phase transition," as found in bistable physical systems). These behaviors represent stable modes of the oculomotor control system, with attendant rapid switching between the neural pathways underlying the different modes. Furthermore, predictive saccades exhibit long-term correlations (slow decay of the autocorrelation function, manifest as a 1/f {alpha} spectrum). This indicates that predictive trials are not independent. The findings have implications for the understanding of predictive motor control: predictive performance during a given trial is influenced by a feedback process that takes into account the latency of previous trials. 10.1152/jn.00478.2003}, address = {Department of Otolaryngology, Head and Neck Surgery, The Johns Hopkins University, School of Medicine, Baltimore, Maryland 21287, USA. mjs@dizzy.med.jhu.edu}, author = {Shelhamer, Mark and Joiner, Wilsaan M.}, citeulike-article-id = {223026}, citeulike-linkout-0 = {http://dx.doi.org/10.1152/jn.00478.2003}, citeulike-linkout-1 = {http://jn.physiology.org/cgi/content/abstract/90/4/2763}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/14534279}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=14534279}, day = {1}, doi = {10.1152/jn.00478.2003}, issn = {0022-3077}, journal = {J Neurophysiol}, keywords = {eye-movement, model, power\_law, review, saccade}, month = {October}, number = {4}, pages = {2763--2769}, posted-at = {2009-07-04 05:08:23}, priority = {2}, title = {Saccades Exhibit Abrupt Transition Between Reactive and Predictive, Predictive Saccade Sequences Have Long-Term Correlations}, url = {http://dx.doi.org/10.1152/jn.00478.2003}, volume = {90}, year = {2003} }

TY - JOUR ID - citeulike:223026 L3 - citeulike-article-id:223026 N2 - To compensate for neural delays, organisms require predictive motor control. We investigated the transition between reaction and prediction in saccades (rapid eye movements) to periodically paced targets. Tracking at low frequencies (0.2-0.3 Hz) is reactive (eyes lag target) and at high frequencies (0.9-1.0 Hz) is predictive (eyes anticipate target); there is an abrupt rather than smooth transition between the two modes (a "phase transition," as found in bistable physical systems). These behaviors represent stable modes of the oculomotor control system, with attendant rapid switching between the neural pathways underlying the different modes. Furthermore, predictive saccades exhibit long-term correlations (slow decay of the autocorrelation function, manifest as a 1/f {alpha} spectrum). This indicates that predictive trials are not independent. The findings have implications for the understanding of predictive motor control: predictive performance during a given trial is influenced by a feedback process that takes into account the latency of previous trials. 10.1152/jn.00478.2003 IS - 4 JF - J Neurophysiol SN - 0022-3077 AD - Department of Otolaryngology, Head and Neck Surgery, The Johns Hopkins University, School of Medicine, Baltimore, Maryland 21287, USA. mjs@dizzy.med.jhu.edu EP - 2769 TI - Saccades Exhibit Abrupt Transition Between Reactive and Predictive, Predictive Saccade Sequences Have Long-Term Correlations VL - 90 SP - 2763 KW - eye-movement KW - model KW - power_law KW - review KW - saccade AU - Shelhamer, Mark AU - Joiner, Wilsaan PY - 2003/10/01/ UR - http://dx.doi.org/10.1152/jn.00478.2003 ER -