Phase Entrainment Strength Scales With Movement Amplitude Disparity

Boer, Betteco J. de; Peper, C. E.; Ridderikhoff, Arne; Beek, Peter J.

doi:10.1123/mcj.17.4.399

Cited by 4 publications

(4 citation statements)

References 37 publications

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“…abnormal unintended interlimb coupling. This interpretation is supported by observations that, for healthy participants, asymmetry in movement amplitude results in less pronounced unintended entrainment between the hands (Peper et al, 2008;Buchanan and Ryu, 2012;de Boer et al, 2013).…”

Section: Discussionsupporting

confidence: 61%

“…B were thus likely due to the asymmetry in movement amplitude between the hands rather than abnormal unintended interlimb coupling. This interpretation is supported by observations that, for healthy participants, asymmetry in movement amplitude results in less pronounced unintended entrainment between the hands (Peper et al., ; Buchanan and Ryu, ; de Boer et al., ). Although the potential role of unintended coupling based on efferent signals was not explicitly addressed in this study, it is noteworthy that the stability of active bimanual coordination in CRPS patients was more reduced for in‐phase than for antiphase coordination.…”

Section: Discussionmentioning

confidence: 59%

“…To reduce predictability of passive movements, the amplitudes of the cycles were randomly varied (SD = 2.5% of the AROM). To control for differences in bimanual coordination that might be related to an asymmetry in movement amplitude between the hands (Peper et al., ; Buchanan and Ryu, ; de Boer et al., ), the amplitude of passive movements for the patient's unaffected hand was calculated on the basis of that wrist's AROM ( relative matching ) or was exactly the same as for the affected hand ( absolute matching ). Similarly, age‐ and gender‐matched control participants performed the relative matching as well as the absolute matching condition – the latter implying that the amplitude of passive movements was identical to that of the matched patient's affected hand.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Intended and unintended (sensory‐)motor coupling between the affected and unaffected upper limb in complex regional pain syndrome

Bank

Peper

Marinus

et al. 2015

European Journal of Pain

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Impaired motor control of the affected limb interfered with bimanual coordination, in particular for tasks involving voluntary (intended) as opposed to automatic (unintended) interlimb coupling. Our findings suggest inappropriate functioning of higher order centres involved in motor control of the affected limb, probably due to pain-related processes and impaired processing of proprioceptive information. Motor function of the affected limb may benefit from intended synchronization with movements of the unaffected contralateral limb, suggesting that bilateral training may be useful in patients with unilateral CRPS.

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Section: Discussionsupporting

confidence: 61%

Section: Discussionmentioning

confidence: 59%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Intended and unintended (sensory‐)motor coupling between the affected and unaffected upper limb in complex regional pain syndrome

Bank

Peper

Marinus

et al. 2015

European Journal of Pain

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“…For the vast majority of previous studies this cannot be verified because the performed amplitudes were neither reported nor considered in interpreting the results, which may have introduced potentially unjustified and confounded conclusions regarding coordinative stability as a function of movement frequency. Previous studies have indeed found indications that moving with larger amplitudes relates to enhanced interlimb [19][20][21][22][23][24][25][26] and perceptuo-motor coupling [27][28][29]. With the current study, we opt for a re-appraisal of the role of amplitude on coordinative stability (as was done for the first time two decades ago by, e.g., [16,19,20]) by presenting results of a refined, artifact-free analysis of the experimental data of Post, Peper, and Beek [21].…”

Section: Introductionmentioning

confidence: 99%

A Re-Appraisal of the Effect of Amplitude on the Stability of Interlimb Coordination Based on Tightened Normalization Procedures

et al. 2020

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The stability of rhythmic interlimb coordination is governed by the coupling between limb movements. While it is amply documented how coordinative performance depends on movement frequency, theoretical considerations and recent empirical findings suggest that interlimb coupling (and hence coordinative stability) is actually mediated more by movement amplitude. Here, we present the results of a reanalysis of the data of Post, Peper, and Beek (2000), which were collected in an experiment aimed at teasing apart the effects of frequency and amplitude on coordinative stability of both steady-state and perturbed in-phase and antiphase interlimb coordination. The dataset in question was selected because we found indications that the according results were prone to artifacts, which may have obscured the potential effects of amplitude on the post-perturbation stability of interlimb coordination. We therefore redid the same analysis based on movement signals that were normalized each half-cycle for variations in oscillation center and movement frequency. With this refined analysis we found that (1) stability of both steady-state and perturbed coordination indeed seemed to depend more on amplitude than on movement frequency per se, and that (2) whereas steady-state antiphase coordination became less stable with increasing frequency for prescribed amplitudes, in-phase coordination became more stable at higher frequencies. Such effects may have been obscured in previous studies due to (1) unnoticed changes in performed amplitudes, and/or (2) artifacts related to inappropriate data normalization. The results of the present reanalysis therefore give cause for reconsidering the relation between the frequency, amplitude, and stability of interlimb coordination.

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Coupling dynamics in speech gestures: amplitude and rate influences

Lieshout

2017

Exp Brain Res

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Speech is a complex oral motor function that involves multiple articulators that need to be coordinated in space and time at relatively high movement speeds. How this is accomplished remains an important and largely unresolved empirical question. From a coordination dynamics perspective, coordination involves the assembly of coordinative units that are characterized by inherently stable coupling patterns that act as attractor states for task-specific actions. In the motor control literature, one particular model formulated by Haken et al. (Biol Cybern 51(5):347-356, 1985) or HKB has received considerable attention in the way it can account for changes in the nature and stability of specific coordination patterns between limbs or between limbs and external stimuli. In this model (and related versions), movement amplitude is considered a critical factor in the formation of these patterns. Several studies have demonstrated its role for bimanual coordination and similar types of tasks, but for speech motor control such studies are lacking. The current study describes a systematic approach to evaluate the impact of movement amplitude and movement duration on coordination stability in the production of bilabial and tongue body gestures for specific vowel-consonant-vowel strings. The vowel combinations that were used induced a natural contrast in movement amplitude at three speaking rate conditions (slow, habitual, fast). Data were collected on ten young adults using electromagnetic articulography, recording movement data from lips and tongue with high temporal and spatial precision. The results showed that with small movement amplitudes there is a decrease in coordination stability, independent from movement duration. These findings were found to be robust across all individuals and are interpreted as further evidence that principles of coupling dynamics operate in the oral motor control system similar to other motor systems and can be explained in terms of coupling mechanisms between neural oscillators (organized in networks) and effector systems. The relevance of these findings for understanding motor control issues in people with speech disorders is discussed as well.

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Phase Entrainment Strength Scales With Movement Amplitude Disparity

Cited by 4 publications

References 37 publications

Intended and unintended (sensory‐)motor coupling between the affected and unaffected upper limb in complex regional pain syndrome

Intended and unintended (sensory‐)motor coupling between the affected and unaffected upper limb in complex regional pain syndrome

A Re-Appraisal of the Effect of Amplitude on the Stability of Interlimb Coordination Based on Tightened Normalization Procedures

Coupling dynamics in speech gestures: amplitude and rate influences

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