Smartphone sensors may tell if someone is high on marijuana

A new study explores the possibility of using a smartphone to detect cannabis intoxication in consumers. It finds that different sensors in smartphones are capable of doing so with an accuracy of up to 90 per cent.

Smartphone sensors can be used for checking marijuana consumption, a new study in the US claims. The study reports a 90 per cent rate of accuracy for such a test on marijuana intake performed through smartphone sensors.

The new study has been performed by a team of scientists from the Rutgers Institute for Health in the US. Now published in Drug and Alcohol Dependence, it maps the feasibility of using phone sensors to detect subjective intoxication from cannabis consumption. The study finds that the feasibility is strong and that sensors in a smartphone can indeed be used to map such intoxication.