The EDOR method

EDOR stands for Electro Dermal Orienting Reactivity and is a test based on analysis of the presence or absence of the vital specific orienting reactions to repeated neutral audio stimuli. Individuals showing rapid habituation to the tone sequence are identified as hyporeactive.

The mechanisms of hyporeactivity are unknown, however it is known that specific orienting reactions originate in hippocampus. This is a structure responsible for memory, spatial organisation, sorting and learning. With its high density of glucocorticoid receptors, it is sensitive to physiological stress resulting in impaired neuronal plasticity and atrophy. In this respect, EDOR tests reveal damages to a basic cognitive process that can be impaired by long-term stress.

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 discovery of the significance of hyporeactivity in depressed patients was first made by Lars-Håkan Thorell in the mid-80s. Since then, several research studies have deepened the understanding and added to the clinical knowledgebase that led to the development of the EDOR-Test.

Hyporeactivity in depression is a state associated with increased risks and a more challenging course of the illness. This makes it an excellent biological information forming as a basis for both short and long-term decisions on treatment and follow-up. However, more information is now emerging as new research is added.

PDF: Scientific background for the EDOR test

EDOR System and products

The EDOR Test is a CE-Marked medical device consisting of three main parts: the EDOR® Box connected to a pair of calibrated noise cancelling headphones, and a computer connected to the Emotra Cloud. The EDOR box generates a standardised tone sequence to the headphones and read biometric data from the patient. Data is then transferred to the computer, connected to the Emotra Cloud where data is controlled, analysed and reported back to the clinic.

The equipment is battery powered, making it portable to use in different wards, clinics and bedside testing. Total time required is 25 minutes and does not require a dedicated laboratory or research facility.