San Francisco Giants are zapping their brains to improve performance

Members of the San Francisco Giants are using transcranial direct current stimulation (tDCS) in an effort to improve their performance on the field. According to SF Giants sports scientist Geoff Head (real name!), "some big-name players" are using the Halo Sport device, resembling Beats headphones, to deliver a small amount of current to the wearer's motor cortex. From KQED:

Head decided to try the headset, called Halo Sport, during spring training last year—he gave them to some minor leaguers to wear as they sprinted 20-yard dashes. After two weeks, Head analyzed the results and found that the players who wore the equipment had shaved off a few one-hundredths of a second compared to a control group....

Even though a lot of the data is conflicting, the most positive results do support using tDCS to improve motor control. Hence the slew of startups targeting athletes.

The Giants’ Head says even a tiny advantage can help win games at the major league level. An improvement of two-hundredths of a second can be “the difference between safe and out sometimes,” he says.

"The SF Giants Are Zapping Their Brains With Electricity. Will It Help?" (KQED)