TITLE

Correlations between brain activity and components of motor learning in middle-aged adults: an fMRI

AUTHOR(S)
Wadden, Katie; Brown, Katlyn; Maletsky, Rebecca; Lara, A.
PUB. DATE
May 2013
SOURCE
Frontiers in Human Neuroscience;May2013, Vol. 7, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Implicit learning may be shown by improvements in motor performance, which occur unconsciously with practice and are typically restricted to the task that was practiced. The purpose of this study was to examine behaviorally relevant brain activation associated with change in motor behavior during sequence-specific motor learning of a perceptuomotor continuous tracking (CT) task in middle-aged adults. To gain further insight into the neural structures associated with change in motor behavior, overall improvement in tracking (root mean square error; RMSE) was decomposed into two components-temporal precision and spatial accuracy. We hypothesized that individual differences in CT task performance would be evident in unique networks of brain activation that supported overall tracking behavior as well-temporal and spatial tracking accuracy. A group of middle-aged healthy individuals performed the CT task, which contains repeated and random segments for seven days. Functional magnetic resonance imaging (fMRI) data was collected on the first and seventh day while the participants performed the task. Subjects did not gain explicit awareness of the sequence. To assess behaviorally-relevant changes in the blood oxygenation level-dependent (BOLD) response associated with individual sequence-specific tracking performance, separate statistical images were created for each participant and weighted by the difference score between repeated and random performance for days 1 and 7. Given the similarity of performance for random and repeated sequences during early practice, there were no unique networks evident at day 1. On Day 7 the resultant group statistical fMRI image demonstrated a positive correlation between RMSE difference score and bilateral cerebellar activation (lobule VI). In addition, individuals who showed greater sequence-specific temporal precision demonstrated increased activation in the precentral gyrus, middle occipital gyrus, and putamen of the right hemisphere and the thalamus, cuneus, and cerebellum of the left hemisphere. Activation of this neural network further confirms its involvement in timing of movements as it has been previously associated with task performance when individuals are instructed to emphasize speed over accuracy. In the present study, behavioral performance was associated with neural correlates of individual variation in motor learning that characterized the ability to implicitly learn a sequence-specific CT task.
ACCESSION #
90620730

 

Related Articles

  • Cerebellar lesions impair context-dependent adaptation of reaching movements in primates. Lewis, Richard F.; Tamargo, Rafael J. // Experimental Brain Research;May2001, Vol. 138 Issue 2, p263 

    To produce accurate movements when conditions change suddenly, the brain must be capable of learning multiple versions of a given motor task and must be able to access the appropriate program using sensory information linked to the context of the movement. The neural basis for context-dependent...

  • Relative errors can cue absolute visuomotor mappings. Dam, Loes; Ernst, Marc // Experimental Brain Research;Dec2015, Vol. 233 Issue 12, p3367 

    When repeatedly switching between two visuomotor mappings, e.g. in a reaching or pointing task, adaptation tends to speed up over time. That is, when the error in the feedback corresponds to a mapping switch, fast adaptation occurs. Yet, what is learned, the relative error or the absolute...

  • Bimanual grasp planning reflects changing rather than fixed constraint dominance. vand erWel, Robrecht P. R. D.; Rosenbaum, David A. // Experimental Brain Research;Sep2010, Vol. 205 Issue 3, p351 

    We studied whether motor-control constraints for grasping objects that are moved to new positions reflect a rigid constraint hierarchy or a flexible constraint hierarchy. In two experiments, we asked participants to move two plungers from the same start locations to different target locations...

  • Perceptual-motor sequence learning of general regularities and specific sequences. Marsolek, Chad J.; Field, Jason E. // Journal of Experimental Psychology. Human Perception & Performan;Jun99, Vol. 25 Issue 3, p815 

    Presents an experiment linking relatively independent subsystems to procedural learning of perceptual-motor sequence components. General-regularity learning; Specific-sequence learning; Declarative memory for specific sequences.

  • Temporal binding of action and effect in interval reproduction. Humphreys, Gruffydd R.; Buehner, Marc J. // Experimental Brain Research;Jun2010, Vol. 203 Issue 2, p465 

    We report two experiments demonstrating temporal binding between action and outcome (Haggard et al. ) as measured in a temporal reproduction paradigm. Our results show that the effect is empirically robust, does not rely on repeated presentation of fixed intervals, truly affects time perception,...

  • Superiority of variable to repeated practice in transfer on anagram solution. Michael K. Goode; Lisa Geraci; Henry L. Roediger III // Psychonomic Bulletin & Review;Jun2008, Vol. 15 Issue 3, p662 

    Previous research in motor learning shows that practicing variations of a task (variable practice) leads to better transfer than does repeatedly practicing the exact same task (repeated practice). In contrast, research on priming using verbal materials shows that performance on a test improves...

  • Movement chunking during sequence learning is a dopamine-dependant process: a study conducted in Parkinson’s disease. Tremblay, Pierre-Luc; Bedard, Marc-Andre; Langlois, Dominic; Blanchet, Pierre J.; Lemay, Martin; Parent, Maxime // Experimental Brain Research;Sep2010, Vol. 205 Issue 3, p375 

    Chunking of single movements into integrated sequences has been described during motor learning, and we have recently demonstrated that this process involves a dopamine-dependant mechanism in animal (Levesque et al. in Exp Brain Res 182:499–508, ; Tremblay et al. in Behav Brain Res...

  • Optic flow improves adaptability of spatiotemporal characteristics during split-belt locomotor adaptation with tactile stimulation. Eikema, Diderik; Chien, Jung; Stergiou, Nicholas; Myers, Sara; Scott-Pandorf, Melissa; Bloomberg, Jacob; Mukherjee, Mukul // Experimental Brain Research;Feb2016, Vol. 234 Issue 2, p511 

    Human locomotor adaptation requires feedback and feed-forward control processes to maintain an appropriate walking pattern. Adaptation may require the use of visual and proprioceptive input to decode altered movement dynamics and generate an appropriate response. After a person transfers from an...

  • Practice and Motor Learning. Hynes-Dusel, Joanne Margaret // Physical Educator;Spring2002, Vol. 59 Issue 2, p58 

    Provides information on a study that tested random versus blocked differences as well as compared inter versus intra task variability on adults learning a novel task, the first stage of skill acquisition in practice and motor learning. Methodologies used; Results and discussion; Conclusion.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics