Figure 1.
The experimental procedure in one block. The hand on the left side in each icon represents participants' own left hand (“real hand”) ; the one on the right side represents the prosthetic hand (“rubber hand”).
Figure 2.
The schematic illustration of a participant sitting in front of the rubber hand with one real hand hidden from sight by a partition. These two hands are stimulated by identical two paint brushes.
Figure 3.
Stimulus presentation of thermal change judgment task.
Stimulus presentations of the thermal change judgment task in one trial. Pairs of visual and thermal stimuli are presented to the real and rubber hands respectively, before (presentation 1) and after (presentation 2) the blank.
Table 1.
Rubber hand illusion questionnaire.
Figure 4.
Results of proprioceptive drift.
Mean proprioceptive drift, an index of the RHI, as function of synchronous-touch and asynchronous-touch blocks. Positive value of the drift index means that the participant mis-localized his/her own hand in the direction of the rubber hand after visual-tactile stimulation.
Figure 5.
Results of rubber hand illusion questionnaire.
Results from the rubber hand illusion questionnaire. Participants rated their agreement to each question on a 7 point scale.
Figure 6.
Results of thermal change judgment task: no change on the real hand.
Results from the thermal change judgment task on trials with no change on the real hand when the object on the real hand is neutral (A) and cool (B). On the ordinate is percent of ‘ascend’ responses on the real hand.
Figure 7.
Results of thermal change judgment task: change on the real hand.
Results from the thermal change judgment task on trials with changed temperature on the real hand when it decreases (A) and increases (B). On the ordinate is percent of ‘ascend’ responses on the real hand.
Table 2.
Visually-dominated response rates in the thermal change judgment task.