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. 2009 Dec 23;10:155. doi: 10.1186/1471-2202-10-155

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Copyright ©2009 Schmidlin et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Behavior: reach and grasp drawer task. Panel A: Reaction times (RT) for each hands in the behavioral unimanual tasks for the 4 monkeys involved in the behavioral reach and grasp drawer task. In each case, the hand with which the PMG monkey (Mk-PM) exhibited the shortest average RTs (right) has been statistically tested against the fastest hand of the 3 normal monkeys (Mk-IU, Mk-I4, Mk-I5) using a Mann-Whitney test. Panel B: Movement times corresponding to the following movement components: First reaching time: from 'hand movement onset' to 'touch knob', Pulling time: from 'touch knob' to 'drawer fully open', Second reaching time: from 'grasping hand movement onset' to 'enter drawer's well', Grasping time: from 'hand penetrating in the well' to 'hand out of the well'.