Size of personal space is affected by anxiety

The space surrounding the body (known by scientists as 'peripersonal space'), which has previously been thought of as having a gradual boundary, has been given physical limits by new research into the relationship between anxiety and personal space. New findings have allowed scientists to define the limit of the 'peripersonal space' surrounding the face as 20-40cm away. The study is published today in The Journal of Neuroscience. As well as having numerical limits the specific distance was found to vary between individuals. Those with anxiety traits were found to have larger peripersonal space. In an experiment, Dr Chiara Sambo and Dr Giandomenico Iannetti from UCL recorded the blink reflex - a defensive response to potentially dangerous stimuli at varying distances from subject's face. They then compared the reflex data to the results of an anxiety test where subjects rated their levels of anxiety in various situations.