Pulling the Senses Together

Patch ran the Kentucky Derby without a left eye, starting from a post position where all his competitors were invisible. Gunner cleaned up the World Championship Reining titles from 1996 to 2002, fully deaf. Addy is blind in his right eye, but that didn’t stop him from winning the Hickstead Derby—famous for its tricky high-speed course over obstacles that stand 5 feet high. There’s no doubt that horses with sensory disabilities can compete with the best, but how do their brains manage these feats? And how do those same brain processes affect horse-and-human teams with no disabilities?

Chickpea is dead to the leg from years of spurs resting against her sides. Strong contact with unforgiving hands has hardened her mouth. She makes no move on her own, waiting for her rider to command her pace and placement from moment to moment. Her sister Mac is just the opposite—she’s highly sensitive to every aid and carries her own body without a helicopter parent up top. What is happening inside their brains to cause this disparity, and how can we ride with their brains to address it?

Take Cory for a ride, and he’ll show you whether the barn hose was wound to the left or the right last night. Seriously! Horses notice tiny alterations—and most will tell you about them if you’re listening. One reason for this is that horses don’t group similar items together the way we do. The tractor that grooms the arena might be fine, but the same tractor coming down a barn aisle is a fire-breathing dragon from Dante’s seventh circle of hell. Why? And what does this mental process mean for the horse’s performance and welfare?

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