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Cognitive testing

A full cognitive battery plus reaction time, voice-scored.

The Standardized Assessment of Concussion (SAC) is a widely-used brief cognitive battery that has informed modern sport concussion assessment. HQ Baseline covers the same cognitive domains — immediate memory, concentration, delayed recall — plus a simple reaction time test, all scored without a proctor.

Immediate memory

Ten-word lists covering standardized memory-recall testing. The athlete hears the list, repeats it back, and does it again across three trials. Voice recognition captures each word in real time; a tap-to-confirm fallback ensures no word is missed if ambient noise interferes.

Concentration

Digit span backward: the athlete hears a sequence, speaks it back in reverse order. Months backward: the athlete recites the months of the year backward, timed. Both modules use voice recognition, and both capture response time as well as accuracy.

Delayed recall

After a five-minute gap filled by the balance modules, the athlete is asked to recall the original ten-word list. Voice-scored, no writing, no paper. This module is one of the most sensitive indicators of recent concussion.

Simple reaction time

Five trials, randomized 2–5 second delays, touchscreen response. We record millisecond reaction times and compute variability. A post-injury reaction time that is slower than baseline — even by a small margin — is one of the earliest measurable concussion signs.

What the dashboard shows

Frequently asked questions

What if the voice recognition mishears a word?
The athlete can confirm or correct any word on-screen before moving on. The app is designed to handle accents, soft speech, and mild audio interference, but it always deferred to the athlete's correction.
Can someone game the baseline by underperforming?
Our scoring flags improbable baselines — e.g. a teenager whose digit span falls two standard deviations below age norms. Athletic trainers review flagged baselines and can ask the athlete to retake.
Are the word lists randomized to prevent practice effects?
Yes. We rotate through standardized word lists between annual baselines and between baseline and post-injury retests to minimize practice effects.

See it in action.