Exploring the fundamental dynamics of error-based motor learning using a stationary predictive-saccade task.
The maintenance of movement accuracy uses prior performance errors to correct future motor plans; this motor-learning process ensures that movements remain quick and accurate. The control of predictive saccades, in which anticipatory movements are made to future targets before visual stimulus inform...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2011-01-01
|
| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3179473?pdf=render |
| _version_ | 1818323634907774976 |
|---|---|
| author | Aaron L Wong Mark Shelhamer |
| author_facet | Aaron L Wong Mark Shelhamer |
| author_sort | Aaron L Wong |
| collection | DOAJ |
| description | The maintenance of movement accuracy uses prior performance errors to correct future motor plans; this motor-learning process ensures that movements remain quick and accurate. The control of predictive saccades, in which anticipatory movements are made to future targets before visual stimulus information becomes available, serves as an ideal paradigm to analyze how the motor system utilizes prior errors to drive movements to a desired goal. Predictive saccades constitute a stationary process (the mean and to a rough approximation the variability of the data do not vary over time, unlike a typical motor adaptation paradigm). This enables us to study inter-trial correlations, both on a trial-by-trial basis and across long blocks of trials. Saccade errors are found to be corrected on a trial-by-trial basis in a direction-specific manner (the next saccade made in the same direction will reflect a correction for errors made on the current saccade). Additionally, there is evidence for a second, modulating process that exhibits long memory. That is, performance information, as measured via inter-trial correlations, is strongly retained across a large number of saccades (about 100 trials). Together, this evidence indicates that the dynamics of motor learning exhibit complexities that must be carefully considered, as they cannot be fully described with current state-space (ARMA) modeling efforts. |
| first_indexed | 2024-12-13T11:15:49Z |
| format | Article |
| id | doaj.art-e834374592054481975fb07b5b35570b |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-13T11:15:49Z |
| publishDate | 2011-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-e834374592054481975fb07b5b35570b2022-12-21T23:48:37ZengPublic Library of Science (PLoS)PLoS ONE1932-62032011-01-0169e2522510.1371/journal.pone.0025225Exploring the fundamental dynamics of error-based motor learning using a stationary predictive-saccade task.Aaron L WongMark ShelhamerThe maintenance of movement accuracy uses prior performance errors to correct future motor plans; this motor-learning process ensures that movements remain quick and accurate. The control of predictive saccades, in which anticipatory movements are made to future targets before visual stimulus information becomes available, serves as an ideal paradigm to analyze how the motor system utilizes prior errors to drive movements to a desired goal. Predictive saccades constitute a stationary process (the mean and to a rough approximation the variability of the data do not vary over time, unlike a typical motor adaptation paradigm). This enables us to study inter-trial correlations, both on a trial-by-trial basis and across long blocks of trials. Saccade errors are found to be corrected on a trial-by-trial basis in a direction-specific manner (the next saccade made in the same direction will reflect a correction for errors made on the current saccade). Additionally, there is evidence for a second, modulating process that exhibits long memory. That is, performance information, as measured via inter-trial correlations, is strongly retained across a large number of saccades (about 100 trials). Together, this evidence indicates that the dynamics of motor learning exhibit complexities that must be carefully considered, as they cannot be fully described with current state-space (ARMA) modeling efforts.http://europepmc.org/articles/PMC3179473?pdf=render |
| spellingShingle | Aaron L Wong Mark Shelhamer Exploring the fundamental dynamics of error-based motor learning using a stationary predictive-saccade task. PLoS ONE |
| title | Exploring the fundamental dynamics of error-based motor learning using a stationary predictive-saccade task. |
| title_full | Exploring the fundamental dynamics of error-based motor learning using a stationary predictive-saccade task. |
| title_fullStr | Exploring the fundamental dynamics of error-based motor learning using a stationary predictive-saccade task. |
| title_full_unstemmed | Exploring the fundamental dynamics of error-based motor learning using a stationary predictive-saccade task. |
| title_short | Exploring the fundamental dynamics of error-based motor learning using a stationary predictive-saccade task. |
| title_sort | exploring the fundamental dynamics of error based motor learning using a stationary predictive saccade task |
| url | http://europepmc.org/articles/PMC3179473?pdf=render |
| work_keys_str_mv | AT aaronlwong exploringthefundamentaldynamicsoferrorbasedmotorlearningusingastationarypredictivesaccadetask AT markshelhamer exploringthefundamentaldynamicsoferrorbasedmotorlearningusingastationarypredictivesaccadetask |