Motor Task Performance under Visual and Auditory Feedback Post Stroke: A Randomised Crossover Trial

Purpose Prior investigations suggest that simultaneous performance of more than 1 motor-oriented task may exacerbate speech motor deficits in individuals with Parkinson disease (PD). The purpose of the current investigation was to examine the extent to which performing a low-demand manual task affected the connected speech in individuals with and without PD. Method Individuals with PD and neurologically healthy controls performed speech tasks (reading and extemporaneous speech tasks) and an oscillatory manual task (a counterclockwise circle-drawing task) in isolation (single-task condition) and concurrently (dual-task condition). Results Relative to speech task performance, no changes in speech acoustics were observed for either group when the low-demand motor task was performed with the concurrent reading tasks. Speakers with PD exhibited a significant decrease in pause duration between the single-task (speech only) and dual-task conditions for the extemporaneous speech task, whereas control participants did not exhibit changes in any speech production variable between the single- and dual-task conditions. Conclusions Overall, there were little to no changes in speech production when a low-demand oscillatory motor task was performed with concurrent reading. For the extemporaneous task, however, individuals with PD exhibited significant changes when the speech and manual tasks were performed concurrently, a pattern that was not observed for control speakers. Supplemental Material https://doi.org/10.23641/asha.8637008

Download Full-text

Training Anomalous Cognition in a Motor Task with Subliminal Auditory Feedback

Journal of Parapsychology ◽

10.30891/jopar.2018.02.05 ◽

2018 ◽

Vol 82 (2) ◽

pp. 132-147

Author(s):

John Palmer

Keyword(s):

Auditory Feedback ◽

Motor Task

Download Full-text

Operator orientation and compatibility in visual-motor task performance

Ergonomics ◽

10.1080/00140138908966105 ◽

1989 ◽

Vol 32 (4) ◽

pp. 387-399 ◽

Cited By ~ 63

Author(s):

CHARLES J. WORRINGHAM ◽

DENNIS B. BERINGER

Keyword(s):

Task Performance ◽

Motor Task ◽

Visual Motor

Download Full-text

Impact of task difficulty and motor ability on visual-motor task performance of children with and without developmental coordination disorder

Human Movement Science ◽

10.1016/j.humov.2014.02.006 ◽

2014 ◽

Vol 34 ◽

pp. 217-232 ◽

Cited By ~ 15

Author(s):

Noémi Cantin ◽

Jennifer Ryan ◽

Helene J. Polatajko

Keyword(s):

Task Performance ◽

Task Difficulty ◽

Developmental Coordination Disorder ◽

Motor Task ◽

Motor Ability ◽

Visual Motor ◽

Coordination Disorder

Download Full-text

Neuronal Substrates Underlying Performance Variability in Well-Trained Skillful Motor Task in Humans

Neural Plasticity ◽

10.1155/2016/1245259 ◽

2016 ◽

Vol 2016 ◽

pp. 1-9 ◽

Cited By ~ 6

Author(s):

Nobuaki Mizuguchi ◽

Shintaro Uehara ◽

Satoshi Hirose ◽

Shinji Yamamoto ◽

Eiichi Naito

Keyword(s):

Task Performance ◽

Motor Skill ◽

Brain Activity ◽

Motor Task ◽

Brain Regions ◽

Anterior Cingulate ◽

Cerebellar Hemisphere ◽

Intensive Training ◽

Performance Variability ◽

The Right

Motor performance fluctuates trial by trial even in a well-trained motor skill. Here we show neural substrates underlying such behavioral fluctuation in humans. We first scanned brain activity with functional magnetic resonance imaging while healthy participants repeatedly performed a 10 s skillful sequential finger-tapping task. Before starting the experiment, the participants had completed intensive training. We evaluated task performance per trial (number of correct sequences in 10 s) and depicted brain regions where the activity changes in association with the fluctuation of the task performance across trials. We found that the activity in a broader range of frontoparietocerebellar network, including the bilateral dorsolateral prefrontal cortex (DLPFC), anterior cingulate and anterior insular cortices, and left cerebellar hemisphere, was negatively correlated with the task performance. We further showed in another transcranial direct current stimulation (tDCS) experiment that task performance deteriorated, when we applied anodal tDCS to the right DLPFC. These results indicate that fluctuation of brain activity in the nonmotor frontoparietocerebellar network may underlie trial-by-trial performance variability even in a well-trained motor skill, and its neuromodulation with tDCS may affect the task performance.

Download Full-text

Performance, Movement, Posture, and Perceived Discomfort in Active vs. Static Seating

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/1071181319631505 ◽

2019 ◽

Vol 63 (1) ◽

pp. 1154-1158

Author(s):

Jeremy D. Faulk ◽

Cameron C. McKee ◽

Heather Bazille ◽

Michael Brigham ◽

Jasmine Daniel ◽

...

Keyword(s):

Task Performance ◽

Motor Task ◽

Fine Motor ◽

Future Research ◽

Trunk Movement ◽

Significant Difference ◽

Within Subjects ◽

Computer Based ◽

Preliminary Study ◽

Static Conditions

Active seating designs may enable users to move more frequently, thereby decreasing physiological risks associated with a sedentary lifestyle. In this preliminary study, two active seating designs (QOR360, Ariel; QOR360, Newton) were compared to a static chair (Herman Miller, Aeron) to understand how active vs. static seating may affect task performance, movement, posture, and perceived discomfort. This within-subjects experiment involved n = 11 student participants who sat upon each of the three chairs for 20 minutes while performing a series of computer-based tasks. Participants showed increased trunk movement while also reporting higher levels of perceived discomfort in the two active chair conditions. There was no significant difference in either posture or fine motor task performance between the active and static conditions. Future research may benefit from additional physiological measurements along with a wider variety of tasks that require seated users to make postural adjustments.

Download Full-text