A University of Missouri study states that people suffer "separation anxiety" when their iPhones were placed in another room.
The study of 40 iPhone users seemed to bolster the researchers' hypothesis that users would have physical discomfort and anxiety when separated by their phones, according to the study. The researchers also predicted a "lessening of self." From the study:
Among the key findings from this study were that when iPhone users were unable to answer their ringing iPhone during a word search puzzle, heart rate and blood pressure increased, self-reported feelings of anxiety and unpleasantness increased, and self-reported extended self and cognition decreased. These findings suggest that negative psychological and physiological outcomes are associated with iPhone separation and the inability to answer one's ringing iPhone during cognitive tasks.
"Our findings suggest that iPhone separation can negatively impact performance on mental tasks," Russell Clayton, a doctoral candidate at the MU School of Journalism and lead author of the study, said. "Additionally, the results from our study suggest that iPhones are capable of becoming an extension of ourselves such that when separated, we experience a lessening of 'self' and a negative physiological state."