TY  - JOUR
PY  - 2014//
TI  - The kinematic signature of voluntary actions
JO  - Neuropsychologia
A1  - Becchio, Cristina
A1  - Zanatto, Debora
A1  - Straulino, Elisa
A1  - Cavallo, Andrea
A1  - Sartori, Giuseppe
A1  - Castiello, Umberto
SP  - 169
EP  - 175
VL  - 64C
IS  - 
N2  - Research in the field of psychology and cognitive neuroscience has begun to explore the functional underpinnings of voluntary actions and how they differ from stimulus-driven actions. From these studies one can conclude that the two action modes differ with respect to their neural and behavioural correlates. So far, however, no study has investigated whether the voluntary and stimulus-driven actions also differ in terms of motor programming. We report two experiments in which participants had to perform either voluntary or stimulus-driven reach-to-grasp actions upon the same stimulus. Using kinematic methods, in Experiment 1 we obtained evidence that voluntary actions and stimulus-driven actions translate into differential movement patterns. <br><br>RESULTS for Experiments 2 suggest that selecting what to do, when to act, and whether to act are characterized by specific kinematic signatures and affect different aspects of the reach-to-grasp movement in a selective fashion. These findings add to current models of volition suggesting that voluntary action control results from an interplay of dissociable subfunctions related to specific decision components: what action execute, when to execute an action, and whether to execute any action.<p /> <p>Language: en</p>
LA  - en
SN  - 0028-3932
UR  - http://dx.doi.org/10.1016/j.neuropsychologia.2014.09.033
ID  - ref1
ER  -