Fig 1.
4 single frames extracted from Steadicam condition video clip: the camera started from a position, common to all conditions (first frame), and was consequently moved by a steadicam construction, carried by a professional camera man, to the end position (last frame).
The two middle frames illustrate the picture change during this way.
Fig 2.
Experimental paradigm employed during EEG recording.
Fig 3.
Hydrocel Geodesic Sensor Net– 128 channels map.
Electrodes circled in red indicate central electrode-clusters of interest chosen to assess rolandic mu-rhythm modulation (electrodes 30, 31, 36, 37, 41,42, 53, 54 in left and 79, 80, 86, 87, 93, 103, 104, 105 in right). Electrodes circled in green indicate electrode-clusters of interest chosen to assess whether recordings in central areas might be affected by posterior activity (electrodes 69, 70, 73, 74 in left and electrodes 82, 83, 88, 89 in right).
Fig 4.
Central alpha frequency power (log corrected for normality) in the two hemispheres across the four time windows.
Interaction effect F(2,3) = 4.21, p<0.05, partial eta squared = 0.22.
Fig 5.
Central low beta frequency power (log corrected for normality) in the three observation conditions across the four time windows.
Interaction effect F(6,90) = 5.52, p<0.001, partial eta squared = 0.27.
Fig 6.
Central middle beta frequency power (log corrected for normality) in the three observation conditions across the four time windows.
F(6,90) = 5.96, p<0.001, partial eta squared = 0.28.