It will be seen that, in all cases, the activity in the illusion condition was greater than the activity in either the asynchronous or incongruent conditions. This index corresponds to the integrated illusion, which should be directly related to the average fMRI signal during the illusion periods. However, in the present experiment, the cerebellar activity was greater in the illusion condition than in the incongruent condition, which also included synchronous stimulation.

The experimenter moved each participant's left index finger so that it touched the right rubber hand on the knuckle of the index finger, and at the same time, the experimenter touched the participant's right index finger on the knuckle, synchronizing the touches on the two hands as closely as possible. The participants were instructed to relax completely, and in a short test session before the scan started, the participants had been trained to relax their left index finger as the experimenter moved it. Together, these findings provide strong support for the hypothesis that the feeling of body ownership is mediated by the detection of correlated multisensory signals and that the premotor cortex and the cerebellum play important roles in this process.

During the illusion, the participants felt more strongly that the rubber hand was their own hand, compared with asynchronous (paired one-tailed t test; t = 8. Pavani F, Spence C, Driver J (2000) Visual capture of touch: out-of-the-body experiences with rubber gloves. After having made the key-press response, participants were instructed to relax completely in all conditions.

As expected, participants took longer to incorporate the black RH and presented lower RH illusion magnitude and a smaller proprioceptive drift for the black RH. Colby CL, Duhamel JR (1991) Heterogeneity of extrastriate visual areas and multiple parietal areas in the macaque monkey.When I switched to RZ the weight did take some getting used to, my serve motion in particular was off for a while, but it was worth it in the long run. The yellow/red activations correspond to the statistical parametric map of the contrast [(illusion - asynchronous) + (illusion - incongruent)] ( p < 0.