A Dynamic Systems Approach to the Effects of Aging on Bimanual Coordination

Temprado, Jean-Jacques; Vercruysse, Sarah; Salesse, Robin N.; Berton, Éric

doi:10.1159/000262445

Cited by 32 publications

(40 citation statements)

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“…These findings suggest a weakening of antiphase coupling with increasing age, as observed in previous bimanual coordination studies Serrien et al, 2000;Temprado et al, 2010;Wishart et al, 2002;Wishart et al, 2000) even for bimanual force modulation. Additionally, we found that increases in hand asymmetry with age (Temprado et al, 2010) also affect bimanual force modulation. Indeed, age-related differences were higher for left hand-stimulus coupling than for the right hand-stimulus coupling and consequently the difference between hands was higher for late middle-aged participants.…”

Section: Age-related Differences In Bimanual Force Controlsupporting

confidence: 88%

“…First, we expected performance would be generally lower with increasing age; we particularly assumed relative timing and relative force to be less accurate and more variable with increasing age . Second, based on previous findings (e.g., Byblow et al, 1995), we expected to observe a stronger hand-hand than hand-stimulus coupling, particularly in late middle-aged adults due to more difficulties to overcome intrinsic movement patterns and to adapt to task characteristics (Hu & Newell, 2011c); moreover, based on previous findings (Temprado et al, 2010;Wishart et al, 2000), we assumed the antiphase pattern would be less sustainable with increasing age. Third, we expected force produced at the minima would be more variable and less accurate than performance at the maxima (cf.…”

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confidence: 95%

“…Older adults seem to be more constrained by intrinsic coordination and thereby have more difficulties to adapt to task demands (Hu & Newell, 2011c;Newell, Vaillancourt, & Sosnoff, 2006). Although the motor repertoire of bimanual coordination patterns has been shown to remain stable with age, the antiphase pattern is more affected by age-related changes and it becomes more difficult to be produced and to be maintained with increasing age, especially at comparably high frequencies (Serrien, Swinnen, & Stelmach, 2000;Temprado, Vercruysse, Salesse, & Berton, 2010;Wishart, Lee, Murdoch, & Hodges, 2000). Moreover, with age, hand asymmetry is increased (Temprado et al, 2010) contributing to agerelated differences in bimanual performance.…”

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confidence: 99%

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Practice Effects in Bimanual Force Control: Does Age Matter?

Vieluf

Godde

Reuter

et al. 2015

Journal of Motor Behavior

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The authors examined age-related differences in fine motor control during a bimanual coordination task. The task required the modulation of fingertip forces in the precision grip according to a visually presented sinusoidal antiphase pattern (force range 2-12 N; frequency 0.2 Hz). Thirty-four right-handed participants of three age groups (young, early middle-aged, and late middle-aged) practiced 30 trials of the task. Accuracy and variability of relative timing and relative forces at minima and maxima of the sine wave were analyzed for hand-hand and hand-stimulus couplings and compared between age groups. Analysis showed for relative timing and force weaker hand-hand than hand-stimulus coupling as well as lower accuracy and higher variability for minima as compared to maxima. Further, we analyzed practice effects by comparing the first and last trials and characterized the course of practice by detecting the transition of a steeper to a shallower acquisition slope for the different age groups. Late middle-aged participants demonstrated poorer performance than both other groups for all parameters. All groups improved performance to a similar amount. However, an age-related difference in acquisition strategy is visible. Late middle-aged participants seemed to have focused on improvement of force amplitude, whereas young and early middle-aged focused on timing.

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Section: Age-related Differences In Bimanual Force Controlsupporting

confidence: 88%

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confidence: 95%

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confidence: 99%

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Practice Effects in Bimanual Force Control: Does Age Matter?

Vieluf

Godde

Reuter

et al. 2015

Journal of Motor Behavior

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“…All lived independently, were physically active, and did not suffer from visuomotor impairment, cognitive, or locomotor problems. They self-declared to be in good health and free of any trouble that could prevent them from doing the task and/or understanding the instructions (see Temprado et al [26] for a similar procedure). Participants of all groups had 10 years of education on average.…”

Section: Methodsmentioning

confidence: 99%

Combining Movement Kinematics, Efficiency Functions, and Brinley Plots to Study Age-Related Slowing of Sensorimotor Processes: Insights from Fitts’ Task

et al. 2011

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Background: Measurement of changes in human information-processing capacities underlying slowing of sensorimotor processes is an important challenge for aging research. Methods exist to estimate the magnitude of slowing and variability coefficients, but attempts to apply them in motor tasks have been scarce. In the present experiment we combined movement kinematic analysis, efficiency functions and Brinley plot to assess age-related slowing and variability of sensorimotor processes in a discrete Fitts’ aiming task. Objectives: (1) Quantifying slowing and variability for the different sensorimotor processes involved in aiming movements, and (2) determining whether changes occurred continuously over time by comparing different age groups. Methods: 29 participants (24–90 years) divided into four age groups were tested. Target size manipulation resulted in three levels of difficulty. Total movement time, durations of the first and secondary movement phases and related variability were analyzed. Fitts and Brinley regression functions were calculated on the basis of the different movement variables. Results: Only older participants were slower than the three younger age groups. For this group, age-difficulty effect was observed for total movement times, but analyses showed that only the secondary movement phase slowed multiplicatively. Additive and proportional increases in variability were also observed in older participants for the first and secondary movement phases, respectively. For the secondary movement phase, estimated slowing coefficients were comparable to those reported in cognitive literature. In addition, Brinley analyses showed that variability increased more than movement time in the secondary movement phase. Discussion: Combination of the different methods of analysis allowed a precise assessment of the locus of slowing and variability of sensorimotor processes in the different movement phases. Results showed that significant changes in both slowing and variability of the different processes occurred late in life. Our findings also suggest that slowing could result from age-induced increase in noise produced by the neural system. Finally, the present results raise the question of whether age-related slowing and increase in variability observed in both cognitive and sensorimotor domains share common causes in the central nervous system.

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“…Greater magnitudes of noise in the system shall continuously perturb and push the movements away from in-phase and antiphase synchrony. Changes at the level of the magnitude of noise in motor systems have been often investigated as potential origins of the weaker synchronization occurring with pathologies, aging, or additional degrees of freedom for example Temprado, Vercruysse, Salesse, & Berton, 2010;Varoqui, Froger, Lagarde, Pelissier, & Bardy, 2010). Accordingly, it would be assumed that greater magnitude of noise in the movements of an actor and an environmental stimulus should be detrimental to the occurrence and stability of spontaneous visuomotor synchronization.…”

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confidence: 99%

Influence of Internal and External Noise on Spontaneous Visuomotor Synchronization

Varlet

Schmidt

Richardson

2015

Journal of Motor Behavior

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Historically, movement noise or variability is considered to be an undesirable property of biological motor systems. In particular, noise is typically assumed to degrade the emergence and stability of rhythmic motor synchronization. Recently, however, it has been suggested that small levels of noise might actually improve the functioning of motor systems and facilitate their adaptation to environmental events. Here, the authors investigated whether noise can facilitate spontaneous rhythmic visuomotor synchronization. They examined the influence of internal noise in the rhythmic limb movements of participants and external noise in the movement of an oscillating visual stimulus on the occurrence of spontaneous synchronization. By indexing the natural frequency variability of participants and manipulating the frequency variability of the visual stimulus, the authors demonstrated that both internal and external noise degrade synchronization when the participants' and stimulus movement frequencies are similar, but can actually facilitate synchronization when the frequencies are different. Furthermore, the two kinds of noise interact with each other. Internal noise facilitates synchronization only when external noise is minimal and vice versa. Too much internal and external noise together degrades synchronization. These findings open new perspectives for better understanding the role of noise in human rhythmic coordination.

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A Dynamic Systems Approach to the Effects of Aging on Bimanual Coordination

Cited by 32 publications

References 65 publications

Practice Effects in Bimanual Force Control: Does Age Matter?

Practice Effects in Bimanual Force Control: Does Age Matter?

Combining Movement Kinematics, Efficiency Functions, and Brinley Plots to Study Age-Related Slowing of Sensorimotor Processes: Insights from Fitts’ Task

Influence of Internal and External Noise on Spontaneous Visuomotor Synchronization

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