Stability-dependent behavioural and electro-cortical reorganizations during intentional switching between bimanual tapping modes

2010 ◽  
Vol 483 (2) ◽  
pp. 118-122 ◽  
Author(s):  
Jessica Tallet ◽  
Jérôme Barral ◽  
Clara James ◽  
Claude-Alain Hauert
Keyword(s):  
Bimanual Tapping

scholarly journals Beat Patterns Determine Inter-Hand Differences in Synchronization Error in a Bimanual Coordination Tapping Task

i-Perception ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 204166952110538
Author(s):  
Yuka Saito ◽  
Tomoki Maezawa ◽  
Jun I. Kawahara
Keyword(s):  
Bimanual Coordination ◽  
Synchronization Error ◽  
Left Hand ◽  
Synchronization Errors ◽  
Right Hand ◽  
Beat Pattern ◽  
Timing System ◽  
Apparent Inconsistency ◽  
The Right ◽  
Bimanual Tapping

A previous study reported the unique finding that people tapping a beat pattern with the right hand produce larger negative synchronization error than when tapping with the left hand or other effectors, in contrast to previous studies that have shown that the hands tap patterns simultaneously without any synchronization errors. We examined whether the inter-hand difference in synchronization error occurred due to handedness or to a specificity of the beat pattern employed in that study. Two experiments manipulated the hand–beat assignments. A comparison between the identical beat to the pacing signal and a beat with a longer interval excluded the handedness hypothesis and demonstrated that beat patterns with relatively shorter intervals were tapped earlier (Experiment 1). These synchronization errors were not local but occurred consistently throughout the beat patterns. Experiment 2 excluded alternative explanations. These results indicate that the apparent inconsistency in previous studies was due to the specificity of the beat patterns, suggesting that a beat pattern with a relatively shorter interval between hands is tapped earlier than beats with longer intervals. Our finding that the bimanual tapping of different beat patterns produced different synchronization errors suggests that the notion of a central timing system may need to be revised.

Reduced Timing Variability during Bimanual Coupling: A Role for Sensory Information

2003 ◽  
Vol 56 (2) ◽  
pp. 329-350 ◽  
Author(s):  
Knut Drewing ◽  
Gisa Aschersleben
Keyword(s):  
Auditory Feedback ◽  
Sensory Information ◽  
Left Hand ◽  
Timing Variability ◽  
Bimanual Coupling ◽  
Hand Tapping ◽  
Bimanual Tapping ◽  
Action Timing ◽  
Action Goals

On a repetitive tapping task, the within-hand variability of intertap intervals is reduced when participants tap with two hands as compared to one-hand tapping. Because this bimanual advantage can be attributed to timer variance (Wing—Kristofferson model, 1973a, b), separate timers have been proposed for each hand, whose outputs are then averaged (Helmuth & Ivry, 1996). An alternative notion is that action timing is based on its sensory reafferences (Aschersleben & Prinz, 1995; Prinz, 1990). The bimanual advantage is then due to increased sensory reafference. We studied bimanual tapping with the continuation paradigm. Participants first synchronized their taps with a metronome and then continued without the pacing signal. Experiment 1 replicated the bimanual advantage. Experiment 2 examined the influence of additional sensory reafferences. Results showed a reduction of timer variance for both uni- and bimanual tapping when auditory feedback was added to each tap. Experiment 3 showed that the bimanual advantage decreased when auditory feedback was removed from taps with the left hand. Results indicate that the sensory reafferences of both hands are used and integrated into timing. This is consistent with the assumption that the bimanual advantage is at least partly due to the increase in sensory reafference. A reformulation of the Wing—Kristofferson model is proposed to explain these results, in which the timer provides action goals in terms of sensory reafferences.

Reduced Timing Variability in Patients with Unilateral Cerebellar Lesions during Bimanual Movements

1996 ◽  
Vol 8 (2) ◽  
pp. 107-118 ◽  
Author(s):  
E. A. Franz ◽  
R. B. Ivry ◽  
L. L. Helmuth
Keyword(s):  
Process Model ◽  
Ipsilateral Side ◽  
Bimanual Movements ◽  
Timing Variability ◽  
Temporal Aspects ◽  
Coupling Constraints ◽  
Temporal Coupling ◽  
Cerebellar Lesions ◽  
Bimanual Tapping

Timing variability on a repetitive tapping task was studied in subjects with unilateral cerebellar lesions. During unimanual tapping, within-hand variability was larger when tapping with the ipsilesional hand in comparison to tapping with the contralesional hand. However, variability in the impaired hand was greatly reduced when subjects tapped with two hands together. The improvement in within-hand variability during bimanual tapping was associated with a reduction in central variability rather than response implementation variability according to the two-process model of Wing and Kristofferson (1973). It is proposed that (1) each half of the cerebellum independently regulates the temporal aspects of movements on the ipsilateral side and (2) temporal coupling constraints require these separate signals to be integrated prior to response implementation for bimanual movements.

A Direct-Learning Approach to Acquiring a Bimanual Tapping Skill

2016 ◽  
Vol 49 (5) ◽  
pp. 550-567 ◽  
Author(s):  
Claire F. Michaels ◽  
Thábata V. B. Gomes ◽  
Rodolfo N. Benda
Keyword(s):  
Learning Approach ◽  
Direct Learning ◽  
Bimanual Tapping

Asymmetric Cognitive Clock Structures in West African Rhythms

1997 ◽  
Vol 15 (2) ◽  
pp. 189-221 ◽  
Author(s):  
Jonathan M. Magill ◽  
Jeffrey L. Pressing
Keyword(s):  
Structural Equation ◽  
Cognitive Model ◽  
West African ◽  
Equation Modeling ◽  
Experimental Conditions ◽  
Time Line ◽  
Substantial Modification ◽  
Pulse Stream ◽  
Pattern Production ◽  
Bimanual Tapping

Results of an experimental investigation of pattern production by a West African (Asante) master drummer are reported. He performed bimanual tapping, with the Kete time-line pattern in one hand and either a regular 3-pulse or a regular 4-pulse in the other hand. Experimental variables manipulated were pulse-stream size (three or four), pulse hand allocation (left or right), and recording protocol, which was either synchronous (played in relation to a computer-generated tone) or spontaneous (no tone). Structural equation modeling was used to systematically examine the comparative fit of two mental models: an asymmetric timeline- ground (TLG) model, which represents a computational elaboration of traditional African understanding, and a pulse-ground (PG) model, which is based on Western ideas of regular meter. The African-based TLG model with at most minor adjustment provided an excellent fit for seven of eight experimental conditions; one condition achieved a good fit only after more substantial modification of the model. The African TLG model achieved superiority over the Western PG model only under certain specific conditions, suggesting that the use of the African cognitive model is subtle, context-dependent, and linked to specific training regimes.

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