Gadget for the treatment of seasickness with electrotherapy. Free Technical Library News

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Gadget for the treatment of seasickness with electrotherapy

16.09.2015

Researchers at Imperial College London have developed a method to prevent seasickness through electrical stimulation. They expect to create a portable device with electrodes connected to the head and put it into mass production.

Transcutaneous electrical nerve stimulation (TENS) has long been successfully used to relieve acute and chronic pain of various origins, including headache. Electrical impulses from electrodes located on the skin above the pain focus stimulate the nerves to block pain signals in the direction of the brain, and the pain is not perceived.

The authors proposed to stimulate the left parietal lobe of the brain with electrical discharges in order to influence the vestibular apparatus of a person and thus eliminate the occurrence of nausea associated with seasickness.

The method was tested by 20 volunteers, including 10 men and 10 women. Electrodes were fixed on their heads for about 10 minutes to influence the current. The subjects were then seated in a motorized chair that rotated and tilted, simulating the conditions under which seasickness occurs in humans while traveling in ships and cars. The scientists recorded how long it took before the participants reported that they were feeling unwell, and then that the nausea had subsided. After the volunteers recovered from the first test session, the second session was carried out in the same way.

The authors noted that the current parameters and duration of exposure selected by them are safe for human health. According to the results of the experience, patients who underwent electrotherapy were less prone to seasickness and recovered from it faster than those who did not receive such treatment.

The researchers expect that in five to XNUMX years the technology will find its way into over-the-counter devices like those already available that use TENS to relieve chronic pain as well as pregnancy pain. Perhaps they will represent a cap with electrodes that can connect to a smartphone and use its processor and battery.

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