The Man Who Fought a Bull With Mind Control

The Crux
By Jack El-Hai
Mar 21, 2016 4:42 PMMay 21, 2019 6:02 PM
bullfight
Jose M.R. Delgado steps into a Spanish bullring as a bold demonstration of his research. (Credit: Yale University News Bureau)

Newsletter

Sign up for our email newsletter for the latest science news
 

The investigator, dressed incongruously in sweater and tie and holding a small metal box, stands in a bullring. He taunts a bull with a gesture of his hand. Suddenly the bull faces him and charges. Taking a couple of steps back, the investigator presses a button on the box to send a radio signal, and the bull halts in mid-stride. It turns away. The animal’s natural aggression has evaporated.

This risky behavior-control demonstration, conducted in Spain in 1963, was the signature experiment of José Manuel Rodríguez Delgado, a physiologist and scientific showman who explored the varied responses of the brain to electrical stimulation.

0 free articles left
Want More? Get unlimited access for as low as $1.99/month

Already a subscriber?

Register or Log In

0 free articlesSubscribe
Discover Magazine Logo
Want more?

Keep reading for as low as $1.99!

Subscribe

Already a subscriber?

Register or Log In

Stay Curious

Sign up for our weekly newsletter and unlock one more article for free.

 

View our Privacy Policy


Want more?
Keep reading for as low as $1.99!


Log In or Register

Already a subscriber?
Find my Subscription

More From Discover
Stay Curious
Join
Our List

Sign up for our weekly science updates.

 
Subscribe
To The Magazine

Save up to 40% off the cover price when you subscribe to Discover magazine.

Copyright © 2025 LabX Media Group