TY  - JOUR
A1  - Stadler, Waltraud
A1  - Ott, Derek V. M.
A1  - Springer, Anne
A1  - Schubotz, Ricarda I.
A1  - Schütz-Bosbach, Simone
A1  - Prinz, Wolfgang
T1  - Repetitive TMS suggests a role of the human dorsal premotor cortex in action prediction
JF  - Frontiers in human neuroscienc
N2  - Predicting the actions of other individuals is crucial for our daily interactions. Recent evidence suggests that the prediction of object-directed arm and full-body actions employs the dorsal premotor cortex (PMd). Thus, the neural substrate involved in action control may also be essential for action prediction. Here, we aimed to address this issue and hypothesized that disrupting the PMd impairs action prediction. Using fMRI-guided coil navigation, rTMS (five pulses, 10Hz) was applied over the left PMd and over the vertex (control region) while participants observed everyday actions in video clips that were transiently occluded for 1s. The participants detected manipulations in the time course of occluded actions, which required them to internally predict the actions during occlusion. To differentiate between functional roles that the PMd could play in prediction, rTMS was either delivered at occluder-onset (TMS-early), affecting the initiation of action prediction, or 300 ms later during occlusion(TMS-late), affecting the maintenance of anongoing prediction. TMS-early over the left PMd produced more prediction errors than TMS-early over the vertex. TMS-late had no effect on prediction performance, suggesting that the left PMd might be involved particularly during the initiation of internally guided action prediction but may play a subordinate role in maintaining ongoing prediction. These findings open a new perspective on the role of the left PMd in action prediction which is in line with its functions in action control and in cognitive tasks. In the discussion, there levance of the left PMd for integrating external action parameters with the observer's motor repertoire is emphasized. Overall, the results are in line with the notion that premotor functions are employed in both action control and action observation.
KW  - action observation
KW  - prediction
KW  - occlusion
KW  - premotor
KW  - PMd
KW  - transcranial magnetic stimulation
Y1  - 2012
U6  - https://doi.org/10.3389/fnhum.2012.00020
SN  - 1662-5161
VL  - 6
IS  - 2
PB  - Frontiers Research Foundation
CY  - Lausanne
ER  - 
TY  - JOUR
A1  - Stadler, Waltraud
A1  - Springer, Anne
A1  - Parkinson, Jim
A1  - Prinz, Wolfgang
T1  - Movement kinematics affect action prediction comparing human to non-human point-light actions
JF  - Psychological research : an international journal of perception, attention, memory, and action
N2  - The influence of movement kinematics on the accuracy of predicting the time course of another individual's actions was studied. A human point-light shape was animated with human movement (natural condition) and with artificial movement that was more uniform regarding velocity profiles and trajectories (artificial condition). During brief occlusions, the participants predicted the actions in order to judge after occlusion whether the actions were continued coherently in time or shifted to an earlier or later frame. Error rates and reaction times were increased in the artificial compared to the natural condition. The findings suggest a perceptual advantage for movement with a human velocity profile, corresponding to the notion of a close interaction between observed and executed movement. The results are discussed in the framework of the simulation account and alternative interpretations are provided on the basis of correlations between the velocity profiles of natural and artificial movements with prediction performance.
Y1  - 2012
U6  - https://doi.org/10.1007/s00426-012-0431-2
SN  - 0340-0727
VL  - 76
IS  - 4
SP  - 395
EP  - 406
PB  - Springer
CY  - Heidelberg
ER  -