DRAFT Masters Project: tDCS headset producibility This project aims to take a design of a headset used for transcranial direct current stimulation (tDCS) and make it producible, i.e., suitable for injection molding. There are also some design issues that needs to be solved regarding how to mount the headset on the head. Project Clients: Erik Rehn ([email protected] ) & Daniel Mansson ([email protected] ) Background tDCS is a technique that has been researched for nearly 50 years in its current form. The technique is based on stimulation of the brain using a weak, barely noticeable, electric signal in order to change activity patterns under the stimulated areas. The electric current is applied by attaching two electrodes, similar to the regular TENS electrodes used for muscle pain treatment, to the forehead. During the last decade, many scientific studies have shown that this technique is effective when treating depression and that it has about the same effect on clinically depressed patients as talk therapy (e.g. CBT) or antidepressant medications. What drastically sets the tDCS technique apart from drugs is that, out of the more than 10,000 simulated patients, no side effects have been shown apart from some redness on the skin under the anode (the plus electrode) and some mild headaches that passed 30 minutes after the stimulation ended. Despite the promising effects that tDCS has shown in many highly qualitative scientific studies, there are no products on the market that can provide individuals with the opportunity to use tDCS in a user-friendly and safe way. Flovv consists of a headset with electrodes and a personalized smartphone app which in part controls the headset, and in part gives the user