Growing debate about the ethics and regulation of direct-to-consumer transcranial direct current stimulation (tDCS)

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Accord­ing to the adver­tis­ing hype, you too can enjoy incred­i­ble neur­al and psy­cho­log­i­cal ben­e­fits in the com­fort of your own home by using a sim­ple elec­tri­cal device that offers tran­scra­nial direct cur­rent stim­u­la­tion (tDCS). For instance, three dif­fer­ent mod­els of tDCS devices sold online claim to improve mood, increase cre­ativ­i­ty, enhance mem­o­ry, accel­er­ate learn­ing, and com­bat pain and depres­sion. For the low, low price of between $99 and $189.95, you get a com­pact hand­held device with easy-to-use con­trols and two elec­tri­cal leads that end in small sponges. These sponges are dipped into saline solu­tion to make them cur­rent-car­ry­ing elec­trodes, then placed against your head. The web­sites typ­i­cal­ly show the sponges locat­ed on either side of the fore­head, but point out that they need to be placed else­where on the skull to acti­vate dif­fer­ent parts of the brain, depend­ing on the desired outcome.

Wher­ev­er you place the sponges, when you switch on the unit, you’re pump­ing elec­tric cur­rent into your brain, although not very much.

 

» Keep read­ing arti­cle Can Zap­ping Your Brain Real­ly Make You Smarter? over at JSTOR Daily.

News in Context:

• Bioethi­cists call for stronger over­sight of direct-to-con­sumer neurotechnologies
• Tran­scra­nial Direct Cur­rent Stim­u­la­tion shows ear­ly promise to ame­lio­rate depres­sion, espe­cial­ly if com­bined with oth­er ther­a­pies and dosage optimized
• tDCS com­ing to an Equinox gym near you: Good, Bad or Depends?
• Insights on the grow­ing home use of tDCS brain stim­u­la­tion: old­er-than-expect­ed users, pos­i­tive self-report­ed results for treat­ment of depres­sion but neg­a­tive for self-enhance­ment, and a cou­ple areas of con­cern (severe burns, frequency)