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Betteco J. de Boer, C. (Lieke) E. Peper, Arne Ridderikhoff and Peter J. Beek

In the current study, we examined whether coupling influences resulting from unintended afference-based phase entrainment are affected by movement amplitude as such or by the amplitude relation between the limbs. We assessed entrainment strength by studying how passive movements of the contralateral hand influenced unimanual coordination with a metronome. Results showed that amplitude as such did not affect entrainment strength, whereas the amplitude relation between the hands did. Larger amplitudes of the passive hand relative to the active hand resulted in stronger entrainment. This dependence on relative amplitude implies that entrainment strength is not only based on the intensity of afferent signals generated in the entraining limb but also on the susceptibility of the entrained limb to these signals.

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-Kuang Wu * 10 2013 17 4 382 398 10.1123/mcj.17.4.382 Phase Entrainment Strength Scales With Movement Amplitude Disparity Betteco J. de Boer * C. (Lieke) E. Peper * Arne Ridderikhoff * Peter J. Beek * 10 2013 17 4 399 411 10.1123/mcj.17.4.399 The Effect of Transcranial Direct Current Stimulation on

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Jill Whitall, Nadja Schott, Leah E. Robinson, Farid Bardid and Jane E. Clark

coupled non-linear limit-cycle oscillators by Kelso and colleagues ( Haken, Kelso, & Bunz, 1985 ; Kelso, Holt, Rubin, & Kugler, 1981 ). Properties of these types of oscillators such as phase-entrainment and stability were subsequently sought in cross-sectional studies of walking ( Clark, Whitall

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Cameron T. Gibbons, Polemnia G. Amazeen and Aaron D. Likens

.), Timing of behavior: Neural, psychological, and computational perspectives (pp.  237 – 259 ). Boston, MA : MIT Press . Amazeen , P.G. , Schmidt , R.C. , & Turvey , M.T. ( 1995 ). Frequency detuning of the phase entrainment dynamics of visually coupled rhythmic movements . Biological Cybernetics