Dissociative effects of normative feedback on motor automaticity and motor accuracy in learning an arm movement sequence

2019 ◽  
Vol 66 ◽  
pp. 529-540
Author(s):  
Christina Zobe ◽  
Daniel Krause ◽  
Klaus Blischke
Keyword(s):  
Arm Movement ◽  
Normative Feedback ◽  
Movement Sequence ◽  
Motor Accuracy

Developmental Differences in Children's Ballistic Aiming Movements of the Arm

2003 ◽  
Vol 96 (2) ◽  
pp. 589-598 ◽  
Author(s):  
Jin H. Yan ◽  
George E. Stelmach ◽  
Katherine T. Thomas ◽  
Jerry R. Thomas
Keyword(s):  
Age Groups ◽  
Arm Movements ◽  
Arm Movement ◽  
Developmental Differences ◽  
Time To Peak ◽  
Timing Variability ◽  
Movement Performance ◽  
Dependent Variables ◽  
Movement Sequence ◽  
On Line

An experiment was conducted to examine the change in the relation between programming and “on-line” correction as a developmental explanation of children's arm movement performance. Each of 54 children in three age groups (5. 8, and 10 yr.) completed two types of rapid aiming arm movements in the longitudinal plane on the surface of a digitizer. Percent primary submovements and timing variability were dependent variables. Analysis suggested that the 5-yr.-olds used “on-line” monitoring during the arm movement and did not perform the movement sequence as a functional unit. Compared with 8- and 10-yr.-olds, the 5-yr.-olds planned a smaller portion of movements, executed the arm movements with more variability in time to peak velocity. The 8- and 10-yr.-olds appeared to plan their movements and execute the sequence as a unit. The developmental implications were discussed.

scholarly journals Analysis of EMG based Arm Movement Sequence using Mean and Median Frequency

2018 ◽  
Vol 5 (5) ◽  
Author(s):  
B. N. Cahyadi ◽  
Wan Khairunizam ◽  
M. Nor Muhammad ◽  
Zunaidi Ibrahim ◽  
S.H. Majid Majid ◽  
...  
Keyword(s):  
Arm Movement ◽  
Median Frequency ◽  
Movement Sequence

Analysis of EMG based Arm Movement Sequence using Mean and Median Frequency

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
B. N. Cahyadi ◽  
Wan Khairunizam ◽  
M. Nor Muhammad ◽  
Zunaidi Ibrahim ◽  
S.H. Majid Majid ◽  
...  
Keyword(s):  
Arm Movement ◽  
Median Frequency ◽  
Movement Sequence

Throwing Action from Full-Cue and Motion-only Video-Models of an Arm Movement Sequence

1989 ◽  
Vol 68 (1) ◽  
pp. 259-266 ◽  
Author(s):  
John G. Williams
Keyword(s):  
Relative Motion ◽  
Arm Movement ◽  
Sufficient Information ◽  
Motion Pattern ◽  
Experimental Conditions ◽  
Small Ball ◽  
The Third ◽  
Movement Sequence ◽  
Flexion And Extension ◽  
Sequence Of Movements

The purpose of this study was to determine whether videotaped demonstrations of an action which displayed only the motion pattern of a model's limb as compared with one which showed both form and motion provide sufficient information for modelling a given pattern of movement. Video-demonstrations of an arm-movement sequence which ended with a throwing action were shown to adult subjects whose task was to model precisely what they saw. Each demonstration lasted 6 sec. and was shown 6 times. It portrayed the arm of a model, who held a small ball, performing a sequence of movements (flexion and extension of the elbow) which ended in the ball being thrown about 2.5 m with a ‘darts-style’ action. Three types of demonstration were presented: one showed the whole arm in dark clothing against a light-coloured background, another showed the arm as the relative motion of patches of light situated at the shoulder, elbow, and wrist joints, and the third showed the arm as the relative motion of the upper and lower segments of the arm represented by strips of light-reflectant material. These were the stimuli for the between-groups experimental conditions. Goniometry techniques were used to compare the performance of subjects relative to the model. Analysis showed that the order of the preparatory sequence was correctly produced after 4 trials under all conditions. Range of arm movement in projecting the ball closely approximated that of the model after 4 trials in all conditions. The time taken for the arm to project the ball remained constant across trials under all conditions and was always slower than the demonstrated cadence. Differences in timing were significant at α .06 with movement most like that of the model when the whole arm was observed.

scholarly journals Sleep-Related Offline Learning in a Complex Arm Movement Sequence

2014 ◽  
Vol 40 (1) ◽  
pp. 7-20 ◽  
Author(s):  
Andreas Malangré ◽  
Peter Leinen ◽  
Klaus Blischke
Keyword(s):  
Motor Skills ◽  
Arm Movement ◽  
Reaching Movements ◽  
Group Differences ◽  
Initial Training ◽  
Training Performance ◽  
Offline Learning ◽  
Movement Sequence ◽  
Execution Speed ◽  
Performance Error

Abstract Sleep is known to elicit off-line improvements of newly learned procedural skills, a phenomenon attributed to enhancement consolidation of an internal skill representation. In the motor domain, enhancement consolidation has been reported almost exclusively for sequential-finger-tapping skills. The aim of the present study was to extend the notion of sleep-related enhancement consolidation to tasks closer to everyday motor skills. This was achieved by employing a sequence of unrestrained reaching-movements with the non-dominant arm. Fifteen reaching-movements had to be executed as fast as possible, following a spatial pattern in the horizontal plane. Terminating each movement, a peg had to be fitted into a hole on an electronic pegboard. Two experimental groups received initial training, one in the evening, the other one in the morning. Subsequently, performance in both groups was retested twelve, and again 24 hrs later. Thus, during retention each individual experienced a night of sleep, either followed or preceded by a wake interval. Performance error remained low throughout training and retests. Yet mean total execution time, indicative of task execution-speed, significantly decreased for all individuals throughout initial training (no group differences), and significantly decreased again in either group following nocturnal sleep, but not following wake. This finding does not appear to result merely from additional practice afforded at the time of retests, because only after a night of sleep individuals of both experimental groups also revealed performance improvement beyond that estimated from their initial training performance.

The activity of dentate neurons during an arm movement sequence

1974 ◽  
Vol 71 (2-3) ◽  
pp. 309-326 ◽  
Author(s):  
Robert J. Grimm ◽  
Donald S. Rushmer
Keyword(s):  
Arm Movement ◽  
Movement Sequence

scholarly journals Chunk concatenation evolves with practice and sleep-related enhancement consolidation in a complex arm movement sequence

2016 ◽  
Vol 51 (1) ◽  
pp. 5-17
Author(s):  
Klaus Blischke ◽  
Andreas Malangré
Keyword(s):  
Movement Time ◽  
Arm Movement ◽  
Production Costs ◽  
Motor Sequence ◽  
Sequence Element ◽  
Transition Speed ◽  
Sequence Production ◽  
Movement Sequence ◽  
Movement Distance ◽  
Element Movement

AbstractThis paper addresses the notion of chunk concatenation being associated with sleep-related enhancement consolidation of motor sequence memory, thereby essentially contributing to improvements in sequence execution speed. To this end, element movement times of a multi-joint arm movement sequence incorporated in a recent study by Malangré et al. (2014) were reanalyzed. As sequence elements differed with respect to movement distance, element movement times had to be purged from differences solely due to varying trajectory lengths. This was done by dividing each element movement time per subject and trial block by the respective “reference movement time” collected from subjects who had extensively practiced each sequence element in isolation. Any differences in these “relative element movement times” were supposed to reflect element-specific “production costs” imposed solely by the sequence context. Across all subjects non-idiosyncratic, lasting sequence segmentation was shown, and four possible concatenation points (i.e. transition points between successive chunks) within the original arm movement sequence were identified. Based on theoretical suppositions derived from previous work with the discrete sequence production task and the dual processor model (Abrahamse et al., 2013), significantly larger improvements in transition speed occurring at these four concatenation points as compared to the five fastest transition positions within the sequence (associated with mere element execution) were assumed to indicate increased chunk concatenation. As a result, chunk concatenation was shown to proceed during acquisition with physical practice, and, most importantly, to significantly progress some more during retention following a night of sleep, but not during a waking interval.

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