Study: NCT03705676

Intervention type: BEHAVIORAL
Group type: ACTIVE_COMPARATOR
Intervention: Rapid Arm Movements
Description: 240 trials of RAM in either a forward (50%) or backward (50%) shoulder flexion direction and back to neutral as fast as possible, with maintaining extension in the elbow. Visual cues (arrows) indicated the movement direction.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Rapid Arm Movements
Description: 240 trials of RAM in either a forward (50%) or backward (50%) shoulder flexion direction and back to neutral as fast as possible, with maintaining extension in the elbow. Visual cues (arrows) indicated the movement direction.

Intervention type: BEHAVIORAL
Group type: ACTIVE_COMPARATOR
Intervention: Rapid Arm Movements
Description: 240 trials of RAM in either a forward (50%) or backward (50%) shoulder flexion direction and back to neutral as fast as possible, with maintaining extension in the elbow. Visual cues (arrows) indicated the movement direction.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Rapid Arm Movements
Description: 240 trials of RAM in either a forward (50%) or backward (50%) shoulder flexion direction and back to neutral as fast as possible, with maintaining extension in the elbow. Visual cues (arrows) indicated the movement direction.

Intervention type: BEHAVIORAL
Group type: ACTIVE_COMPARATOR
Intervention: Rapid Arm Movements
Description: 240 trials of RAM in either a forward (50%) or backward (50%) shoulder flexion direction and back to neutral as fast as possible, with maintaining extension in the elbow. Visual cues (arrows) indicated the movement direction.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Rapid Arm Movements
Description: 240 trials of RAM in either a forward (50%) or backward (50%) shoulder flexion direction and back to neutral as fast as possible, with maintaining extension in the elbow. Visual cues (arrows) indicated the movement direction.

Intervention type: DEVICE
Group type: EXPERIMENTAL
Intervention: Unpleasant stimulus
Description: An unpleasant, but harmless, electrocutaneous stimulus is administered to the low back region in 25% of the threat trials during the fear condition. Due to a conditioning phase before testing, participants know to expect this stimulus after the presentation of a warning cue related to the fear trials (either pink or blue dot dependent on randomization).

Intervention type: DEVICE
Group type: EXPERIMENTAL
Intervention: Unpleasant stimulus
Description: An unpleasant, but harmless, electrocutaneous stimulus is administered to the low back region in 25% of the threat trials during the fear condition. Due to a conditioning phase before testing, participants know to expect this stimulus after the presentation of a warning cue related to the fear trials (either pink or blue dot dependent on randomization).

Intervention type: DEVICE
Group type: EXPERIMENTAL
Intervention: Unpleasant stimulus
Description: An unpleasant, but harmless, electrocutaneous stimulus is administered to the low back region in 25% of the threat trials during the fear condition. Due to a conditioning phase before testing, participants know to expect this stimulus after the presentation of a warning cue related to the fear trials (either pink or blue dot dependent on randomization).

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: Vibrotactile stimulus
Description: In all trials, during the presentation of the warning cue, a vibrotactile stimulus is administered to the low back region. This stimulus is used to evoke somatosensory evoked potentials (SEP) measured with EEG during the movement-preparation phase.

Intervention type: DEVICE
Group type: EXPERIMENTAL
Intervention: Vibrotactile stimulus
Description: In all trials, during the presentation of the warning cue, a vibrotactile stimulus is administered to the low back region. This stimulus is used to evoke somatosensory evoked potentials (SEP) measured with EEG during the movement-preparation phase.

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: Vibrotactile stimulus
Description: In all trials, during the presentation of the warning cue, a vibrotactile stimulus is administered to the low back region. This stimulus is used to evoke somatosensory evoked potentials (SEP) measured with EEG during the movement-preparation phase.

Intervention type: DEVICE
Group type: EXPERIMENTAL
Intervention: Vibrotactile stimulus
Description: In all trials, during the presentation of the warning cue, a vibrotactile stimulus is administered to the low back region. This stimulus is used to evoke somatosensory evoked potentials (SEP) measured with EEG during the movement-preparation phase.

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: Vibrotactile stimulus
Description: In all trials, during the presentation of the warning cue, a vibrotactile stimulus is administered to the low back region. This stimulus is used to evoke somatosensory evoked potentials (SEP) measured with EEG during the movement-preparation phase.

Intervention type: DEVICE
Group type: EXPERIMENTAL
Intervention: Vibrotactile stimulus
Description: In all trials, during the presentation of the warning cue, a vibrotactile stimulus is administered to the low back region. This stimulus is used to evoke somatosensory evoked potentials (SEP) measured with EEG during the movement-preparation phase.