@article{030295f523ba431dae8f3825c0e06224,
title = "Adaptation of visual tracking synchronization after one night of sleep deprivation",
abstract = "The temporal delay between sensory input and motor execution is a fundamental constraint in interactions with the environment. Predicting the temporal course of a stimulus and dynamically synchronizing the required action with the stimulus are critical for offsetting this constraint, and this prediction-synchronization capacity can be tested using visual tracking of a target with predictable motion. Although the role of temporal prediction in visual tracking is assumed, little is known of how internal predictions interact with the behavioral outcome or how changes in the cognitive state influence such interaction. We quantified and compared the predictive visual tracking performance of military volunteers before and after one night of sleep deprivation. The moment-to-moment synchronization of visual tracking during sleep deprivation deteriorated with sensitivity changes greater than 40 %. However, increased anticipatory saccades maintained the overall temporal accuracy with near zero phase error. Results suggest that acute sleep deprivation induces instability in visuomotor prediction, but there is compensatory visuomotor adaptation. Detection of these visual tracking features may aid in the identification of insufficient sleep.",
keywords = "Attention, Eye movement, Fatigue, Screening, Sleepiness, Smooth pursuit, Visuomotor",
author = "Jianliang Tong and Jun Maruta and Heaton, {Kristin J.} and Maule, {Alexis L.} and Jamshid Ghajar",
note = "Funding Information: Fig. 5 Effects of anticipatory saccades on smooth pursuit gain. a Example from typical baseline testing. The top trace shows the phase relationship between the gaze and the target (positive lead). The bottom trace shows the modulation of instantaneous smooth pursuit velocity gain in the component parallel to the circular target tra jectory, i.e., tangential velocity gain. Catch-up and anticipatory saccades are indicated by C and A, respectively. Smooth pursuit periods immediately following anticipatory saccades tend to have reduced gains (e.g., the shaded area) and were excluded from the analysis shown in b. b Changes during sleep dep rivation in average tangential smooth pursuit velocity gain calculated without the periods after anticipatory saccades. The error bars denote one standard deviation across subjects Acknowledgments This work was supported by Congressionally Directed Medical Research Program (CDMRP) through an Advanced Technology Award (W81XWH-08-2-0177) to Jamshid Ghajar and by US Army Medical Research and Materiel Command award (W81XWH-08-1-002; Project PI: SP Proctor, Site PI: KJ Keaton) to the Henry M. Jackson Foundation for the Advancement of Military Medicine Inc. We would like thank Dr. Lisa A. Spielman for the valuable suggestions on the statistical analysis. We would like thank Dr. Umesh Rajashekar for the useful comments on the signal processing analysis. The opinions or assertions contained herein are the private views of the authors and are not to be construed as official or as reflecting the views of the Army or the Department of Defense.",
year = "2014",
month = jan,
doi = "10.1007/s00221-013-3725-8",
language = "English",
volume = "232",
pages = "121--131",
journal = "Experimental Brain Research",
issn = "0014-4819",
publisher = "Springer Science and Business Media Deutschland GmbH",
number = "1",
}