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The influence of task outcome on implicit motor learning.
Kim HE, Parvin DE, Ivry RB. Kim HE, et al. Elife. 2019 Apr 29;8:e39882. doi: 10.7554/eLife.39882. Elife. 2019. PMID: 31033439 Free PMC article.
Recent studies have demonstrated that task success signals can modulate learning during sensorimotor adaptation tasks, primarily through engaging explicit processes. Here, we examine the influence of task outcome on implicit adaptation, using a reaching task …
Recent studies have demonstrated that task success signals can modulate learning during sensorimotor adaptation tasks, primarily thro …
Dissociable use-dependent processes for volitional goal-directed reaching.
Tsay JS, Kim HE, Saxena A, Parvin DE, Verstynen T, Ivry RB. Tsay JS, et al. Proc Biol Sci. 2022 Apr 27;289(1973):20220415. doi: 10.1098/rspb.2022.0415. Epub 2022 Apr 27. Proc Biol Sci. 2022. PMID: 35473382 Free PMC article.
Furthermore, these execution biases were not only replicated in a delayed-response task but were also insensitive to reward. Taken together, these results extend our understanding of how volitional movements are influenced by recent experience....
Furthermore, these execution biases were not only replicated in a delayed-response task but were also insensitive to reward. Taken to …
Characteristics of Implicit Sensorimotor Adaptation Revealed by Task-irrelevant Clamped Feedback.
Morehead JR, Taylor JA, Parvin DE, Ivry RB. Morehead JR, et al. J Cogn Neurosci. 2017 Jun;29(6):1061-1074. doi: 10.1162/jocn_a_01108. Epub 2017 Feb 14. J Cogn Neurosci. 2017. PMID: 28195523 Free PMC article.
This learning can be precisely measured, but its source has been hard to pin down because standard adaptation tasks introduce two potential learning signals: task performance errors and sensory prediction errors. Here we employed a new method that induces sensory predictio …
This learning can be precisely measured, but its source has been hard to pin down because standard adaptation tasks introduce two potential …
Implicit Adaptation Is Modulated by the Relevance of Feedback.
Tsay J, Parvin DE, Dang KV, Stover AR, Ivry RB, Morehead JR. Tsay J, et al. J Cogn Neurosci. 2024 Jun 1;36(6):1206-1220. doi: 10.1162/jocn_a_02160. J Cogn Neurosci. 2024. PMID: 38579248
To tackle this question, we presented multiple cursors as visual feedback in a center-out reaching task and varied the task relevance of these cursors. In other words, participants were instructed to hit a target with a specific task-relevant cursor, while ig …
To tackle this question, we presented multiple cursors as visual feedback in a center-out reaching task and varied the task re …
Credit assignment in movement-dependent reinforcement learning.
McDougle SD, Boggess MJ, Crossley MJ, Parvin D, Ivry RB, Taylor JA. McDougle SD, et al. Proc Natl Acad Sci U S A. 2016 Jun 14;113(24):6797-802. doi: 10.1073/pnas.1523669113. Epub 2016 May 31. Proc Natl Acad Sci U S A. 2016. PMID: 27247404 Free PMC article. Clinical Trial.
To explore this problem, we modified a popular decision-making task used in studies of reinforcement learning, the two-armed bandit task. ...
To explore this problem, we modified a popular decision-making task used in studies of reinforcement learning, the two-armed bandit …
Distinct Neural Signatures of Outcome Monitoring After Selection and Execution Errors.
Mushtaq F, McDougle SD, Craddock MP, Parvin DE, Brookes J, Schaefer A, Mon-Williams M, Taylor JA, Ivry RB. Mushtaq F, et al. J Cogn Neurosci. 2022 Mar 31;34(5):748-765. doi: 10.1162/jocn_a_01824. J Cogn Neurosci. 2022. PMID: 35104323 Free PMC article.
To explore how the brain responds to these different types of errors, we examined feedback-locked EEG activity while participants completed a modified version of a standard three-armed bandit probabilistic reward task. Our task framed unrewarded outcomes as the resu …
To explore how the brain responds to these different types of errors, we examined feedback-locked EEG activity while participants completed …
Dual-Task Training Affect Cognitive and Physical Performances and Brain Oscillation Ratio of Patients With Alzheimer's Disease: A Randomized Controlled Trial.
Parvin E, Mohammadian F, Amani-Shalamzari S, Bayati M, Tazesh B. Parvin E, et al. Front Aging Neurosci. 2020 Dec 22;12:605317. doi: 10.3389/fnagi.2020.605317. eCollection 2020. Front Aging Neurosci. 2020. PMID: 33424581 Free PMC article.
This study aimed to investigate the effect of 12 weeks of dual-task training on cognitive status, physical performance, and brain oscillation of patients with Alzheimer's disease (AD). ...
This study aimed to investigate the effect of 12 weeks of dual-task training on cognitive status, physical performance, and brain osc …
Neural Signatures of Prediction Errors in a Decision-Making Task Are Modulated by Action Execution Failures.
McDougle SD, Butcher PA, Parvin DE, Mushtaq F, Niv Y, Ivry RB, Taylor JA. McDougle SD, et al. Curr Biol. 2019 May 20;29(10):1606-1613.e5. doi: 10.1016/j.cub.2019.04.011. Epub 2019 May 2. Curr Biol. 2019. PMID: 31056386 Free PMC article.
To explore this, we used a modified version of a classic reinforcement learning task in which feedback indicated whether negative prediction errors were, or were not, associated with execution errors. ...
To explore this, we used a modified version of a classic reinforcement learning task in which feedback indicated whether negative pre …
The effect of visual uncertainty on implicit motor adaptation.
Tsay JS, Avraham G, Kim HE, Parvin DE, Wang Z, Ivry RB. Tsay JS, et al. J Neurophysiol. 2021 Jan 1;125(1):12-22. doi: 10.1152/jn.00493.2020. Epub 2020 Nov 25. J Neurophysiol. 2021. PMID: 33236937 Free PMC article.
However, these predictions remain untested since manipulations of error size in standard visuomotor tasks introduce confounds in the degree to which performance is influenced by other learning processes such as strategy use. Here, we used a novel visuomotor task that isola …
However, these predictions remain untested since manipulations of error size in standard visuomotor tasks introduce confounds in the degree …
15 results