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. 2007 Aug 28;184(2):143–156. doi: 10.1007/s00221-007-1085-y

Fig. 1.

Fig. 1

Exemplary phase portrait of rhythmic isofrequency wrist oscillations during an in-phase visuo-motor tracking task. Spatial anchoring, that is points or regions of reduced movement variability, are typically observed at or around movement reversal points (viz. at peak wrist flexion (left) in this example). White and gray circles represent the time indices of left and right target turning points (i.e., the movement reversals of the visual metronome), which were used to determine temporal anchoring