Participant Using Robot (2 of 2) (video) Cell Press Share Print E-Mail Loading video... Caption Participants experienced being in the presence of another person in the asynchronous versus synchronous stimulation condition (p < 0.01) and experienced being touched by that invisible presence behind them (p < 0.01). Asynchronous stimulation induced a backward drift in selflocation toward the position of the presence (p < 0.05; Credit Current Biology, Blanke et al. Usage Restrictions Credit Required Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.