The EDOR method

EDOR stands for Electro Dermal Orienting Reactivity and is a method that identifies patients as reactive or hyporeactive based on the patients electrodermal reactions to audio stimuli. Data for analysis comes from the recorded electrodermal reactions, heart rate and blood volume when using a standardised and calibrated tone sequence.

Analysis is made on the reaction patterns from the patient. Patients that habituate extremely quickly to the signal stimuli are hyporeactive compared to reactive patients. Hyporeactive patients have been showed to be more vulnerable to suicide and suicide attempts. It is an immediate, non-verbal and non-invasive method with a marker describing both imminent and long-term suicide risk.

PDF: Orienting responses

Novel method with a sound 
scientific background

Electrodermal activity has been used in psychophysiological research for more than 100 years, but the link to suicide and hyporeactivity in depression was first discovered by Lars-Håkan Thorell in the mid-80s. Since then, a series of research studies and publications have deepened the understanding and added to the clinical knowledge-base.

Today, the existing evidence forms a basis to utilise the test as an objective tool in clinical routine, identifying hyporeactives with increased risk of suicide and violent suicide attempts in patients with primary depression.

PDF: Scientific background for the EDOR-Test

EDOR System and products

The system consists of three main parts: the EDOR® Box calibrated to a pair of headphones, a computer and the Emotra Cloud. The EDOR box generates a sequence of tone stimuli to the headphones and reads biometric data from the patient. Data is then transferred to the computer, connected to the Emotra Cloud where the files are controlled, analysed and then reported back. The EDOR Test is a CE-Marked medical device.

Equipment is easy to use and is portable, making it possible to test on different wards/clinics, bedside and in the patient’s home. Total time required is 25 minutes, where 10 minutes are for entering patient records, and 15 minutes for testing. The testing can be managed by a trained nurse, administrative staff or technician, and data is kept safe throughout the whole process.

PDF: EDOR® Test and the Emotra Cloud