Article from The Athletic on the S2 Cognition Test, one of the newer tools teams use to evaluate NFL prospects
Was Brock Purdy’s emergence predictable ?
S2 Cognition test has pointed to NFL success
"If you watched Brock Purdy at last year’s NFL Scouting Combine, you would have seen a quarterback with below-average height, a merely adequate arm and foot speed that, while good, didn’t separate him from the pack.
The test he absolutely aced — and one that predicted his brilliant rookie season for the 49ers — was administered out of public view. Purdy landed in the mid 90s on something called the S2 Cognition test, a score you might consider Drew Brees-like. Which is to say, it’s elite.
The S2 isn’t an intelligence test like the 50-question Wonderlic exam but rather measures how quickly and accurately athletes process information. It’s like the 40-yard dash for the brain.
”The game will never be too fast for Brock, I’ll say that,” said Brandon Ally, a neuroscientist and cofounder of Nashville-based S2 Cognition. “I don’t think he’ll ever have trouble adjusting.”
Ally and his partner, Scott Wylie, have tested more than 40,000 athletes, from big-league batsmen to pro golfers, and the company has contracts with 14 NFL teams. The group already has been testing players at college all-star games during the current draft cycle and will do more testing at next week’s combine in Indianapolis. By the time the draft begins in April, S2 will have scores for more than 800 prospects.
“The GMs have become so interested in the data that we start testing as soon as these kids declare,” Ally said.
The exam lasts 40 to 45 minutes. It’s performed on a specially designed gaming laptop and response pad that can record reactions in two milliseconds. To put that in perspective, an eye blink lasts 100 to 150 milliseconds.
In one section of the exam, a series of diamonds flash on the screen for 16 milliseconds each. Every diamond is missing a point, and the test taker must determine — using left, right, up or down keys — which part is missing.
In another, the test seeks to find out how many objects an athlete can keep track of at the same time. In another, there are 22 figures on the screen and the athlete must locate a specific one as quickly as possible. The object might be a red triangle embedded in other shapes that are also red.
“We’re talking about things they have to perceive on the screen within 16/1,000th of a second, which is essentially subliminal and which scientific literature says you shouldn’t be able to process,” Ally said.
“And I’ll be honest with you, we’re seeing pro baseball players see something way faster than 16 milliseconds, which has never been reported in literature, all the way to some athletes who may take 150 milliseconds. So our eyes may see the same thing. But for some, it takes longer to process than others.”
