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. 2013 Jun 10;7:253. doi: 10.3389/fnhum.2013.00253

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Copyright © 2013 van der Steen and Keller.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc.

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Implementation of adaptation (A) and anticipation (B,C) in ADAM. asyn, asynchrony; Int, interval; T, Timekeeper period. (A) The time of occurrence of the next tone is determined based on the asynchrony and the settings of error correction parameters α and β (Equation 1). The setting of β affects the current timekeeper period (Equation 2). The interval produced by ADAM between t_n and t_n+1 is equal to T_n + (α + β) × asyn_n. (B,C) A curve-fitting process that is applied to the preceding intervals predicts the participant's next tap time (Equations 3 and 4). The timing of upcoming tone or the next interval produced by ADAM can be set to enable ADAM's next tone to coincide with the predicted next tap of the participant.