Figure 2.

Example acceleration vectors of voluntary thumb movements. First-peak acceleration vectors from early-precue trials without TMS. Data from one subject. The plot shows that each of the five precues induced a thumb movement in a different direction, with little overlap between movements in response to different precues.

van Elswijk et al. BMC Neuroscience 2008 9:51   doi:10.1186/1471-2202-9-51
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