Practicing novel, praxis-like movements: physiological effects of repetition
Our primary goal was to develop and validate a task that could provide evidence about how humans learn praxis gestures, such as those involving the use of tools. To that end, we created a video-based task in which subjects view a model performing novel, meaningless one-handed actions with kinematics...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2016-02-01
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| Series: | Frontiers in Human Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnhum.2016.00022/full |
| _version_ | 1818486488953782272 |
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| author | Joshua Benjamin Ewen Joshua Benjamin Ewen Joshua Benjamin Ewen Ajay ePillai Ajay ePillai Danielle eMcAuliffe Balaji M Lakshmanan Katarina eAment Mark eHallett Nathan Earl Crone Stewart H Mostofsky Stewart H Mostofsky Stewart H Mostofsky |
| author_facet | Joshua Benjamin Ewen Joshua Benjamin Ewen Joshua Benjamin Ewen Ajay ePillai Ajay ePillai Danielle eMcAuliffe Balaji M Lakshmanan Katarina eAment Mark eHallett Nathan Earl Crone Stewart H Mostofsky Stewart H Mostofsky Stewart H Mostofsky |
| author_sort | Joshua Benjamin Ewen |
| collection | DOAJ |
| description | Our primary goal was to develop and validate a task that could provide evidence about how humans learn praxis gestures, such as those involving the use of tools. To that end, we created a video-based task in which subjects view a model performing novel, meaningless one-handed actions with kinematics similar to praxis gestures. Subjects then imitated the movements with their right hand. Trials were repeated 6 times to examine practice effects. EEG was recorded during the task. As a control, subjects watched videos of a model performing a well-established (over learned) tool-use gesture. These gestures were also imitated 6 times. Demonstrating convergent validity, EEG measures of task-related cortical activation were similar in topography and frequency between the novel gesture task and the overlearned, praxis gesture task. As in studies assessing motor skill learning with simpler tasks, cortical activation during novel gesture learning decreased as the same gestures were repeated. In the control condition, repetition of overlearned tool-use gestures were also associated with reductions in activation, though to a lesser degree. Given that even overlearned, praxis gestures show constriction of EEG activity with repetition, it is possible that that attentional effects drive some of the repetition effects seen in EEG measures of activation during novel gesture repetition. |
| first_indexed | 2024-12-10T16:23:42Z |
| format | Article |
| id | doaj.art-49265f9677b341bd8acf868499c523de |
| institution | Directory Open Access Journal |
| issn | 1662-5161 |
| language | English |
| last_indexed | 2024-12-10T16:23:42Z |
| publishDate | 2016-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Human Neuroscience |
| spelling | doaj.art-49265f9677b341bd8acf868499c523de2022-12-22T01:41:44ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612016-02-011010.3389/fnhum.2016.00022171622Practicing novel, praxis-like movements: physiological effects of repetitionJoshua Benjamin Ewen0Joshua Benjamin Ewen1Joshua Benjamin Ewen2Ajay ePillai3Ajay ePillai4Danielle eMcAuliffe5Balaji M Lakshmanan6Katarina eAment7Mark eHallett8Nathan Earl Crone9Stewart H Mostofsky10Stewart H Mostofsky11Stewart H Mostofsky12Kennedy Krieger InstituteJohns Hopkins University School of MedicineJohns Hopkins UniversityKennedy Krieger InstituteJohns Hopkins University School of MedicineKennedy Krieger InstituteKennedy Krieger InstituteKennedy Krieger InstituteNational Institutes of Neurological Disorders and Stroke / National Institutes of HealthJohns Hopkins University School of MedicineJohns Hopkins University School of MedicineKennedy Krieger InstituteJohns Hopkins University School of MedicineOur primary goal was to develop and validate a task that could provide evidence about how humans learn praxis gestures, such as those involving the use of tools. To that end, we created a video-based task in which subjects view a model performing novel, meaningless one-handed actions with kinematics similar to praxis gestures. Subjects then imitated the movements with their right hand. Trials were repeated 6 times to examine practice effects. EEG was recorded during the task. As a control, subjects watched videos of a model performing a well-established (over learned) tool-use gesture. These gestures were also imitated 6 times. Demonstrating convergent validity, EEG measures of task-related cortical activation were similar in topography and frequency between the novel gesture task and the overlearned, praxis gesture task. As in studies assessing motor skill learning with simpler tasks, cortical activation during novel gesture learning decreased as the same gestures were repeated. In the control condition, repetition of overlearned tool-use gestures were also associated with reductions in activation, though to a lesser degree. Given that even overlearned, praxis gestures show constriction of EEG activity with repetition, it is possible that that attentional effects drive some of the repetition effects seen in EEG measures of activation during novel gesture repetition.http://journal.frontiersin.org/Journal/10.3389/fnhum.2016.00022/fullAttentionEEGmotor learningrepetition suppressionEvent-related desynchronization (ERD)Gesture production |
| spellingShingle | Joshua Benjamin Ewen Joshua Benjamin Ewen Joshua Benjamin Ewen Ajay ePillai Ajay ePillai Danielle eMcAuliffe Balaji M Lakshmanan Katarina eAment Mark eHallett Nathan Earl Crone Stewart H Mostofsky Stewart H Mostofsky Stewart H Mostofsky Practicing novel, praxis-like movements: physiological effects of repetition Frontiers in Human Neuroscience Attention EEG motor learning repetition suppression Event-related desynchronization (ERD) Gesture production |
| title | Practicing novel, praxis-like movements: physiological effects of repetition |
| title_full | Practicing novel, praxis-like movements: physiological effects of repetition |
| title_fullStr | Practicing novel, praxis-like movements: physiological effects of repetition |
| title_full_unstemmed | Practicing novel, praxis-like movements: physiological effects of repetition |
| title_short | Practicing novel, praxis-like movements: physiological effects of repetition |
| title_sort | practicing novel praxis like movements physiological effects of repetition |
| topic | Attention EEG motor learning repetition suppression Event-related desynchronization (ERD) Gesture production |
| url | http://journal.frontiersin.org/Journal/10.3389/fnhum.2016.00022/full |
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