Experiencing a social situation from a lower height can make people who are prone to having 'mistrustful thoughts' feel inferior and excessively mistrustful, according to the study which made use of people's reactions to a virtual reality underground tube ride.
The researchers demonstrated that making a person's height lower than normal in the virtual reality simulation could make them feel worse about themselves and more fearful that others are trying to harm them.
The experiment provides a demonstration of how low self-esteem can lead to the occurrence of paranoid thinking, researchers said.
"It is little wonder then that men and women tend to over-report their height," Freeman said.
More From This Section
"In this study we reduced people's height, which led to a striking consequence: people felt inferior and this caused them to feel overly mistrustful," he said.
The study tested 60 adult women from the general population who were prone to having 'mistrustful thoughts'. The participants experienced an underground tube ride virtual reality simulation.
In both instances, the other virtual passengers were programmed to be 'neutral', so that if fears occurred about the virtual characters then they would be known to be unfounded.
While most people did not consciously register the height difference, there was an increase in the number of people who reported feelings of social inferiority in the lower height phase of the experiment, such as being incompetent, unlikeable, and inferior.
These negative thoughts translated into an increase in paranoia towards the other passengers.
"The important treatment implication for severe paranoia that we can take from this study is that if we help people to feel more self-confident then they will be less mistrustful," Freeman said.
"This prediction is exactly what we are testing in the next phase of our work, a new randomised controlled clinical trial," he said.
The study is published in the journal Psychiatry Research.