Cognitive load
How hard the brain is working into each braking zone, each overtake, each restart: the load that decides where the lap time goes.
SPARK Simracing · Car simulator
Telemetry records everything the car does. SPARK Simracing adds what it cannot see: the driver's cognitive load, attention and fatigue, measured from brain activity and aligned with the telemetry, corner by corner, in a car simulator.
Three layers of the human, on the same timeline as throttle, brake and position.
How hard the brain is working into each braking zone, each overtake, each restart: the load that decides where the lap time goes.
When focus narrows, when vigilance drops across a stint, and which corners pay for it.
Heart rate and head movements next to the brain signal, so mental effort is told apart from physical effort.
Heart rate and breathing rise with physical effort and with mental effort alike. From the outside, a heavy braking zone and a moment of doubt look the same. Only a signal taken from the brain separates the two.
Synchronised with telemetry, that signal becomes a channel an engineer can work with: the lap where load peaked, the corner where attention dropped, the stint where fatigue set in. It turns "the driver felt off" into data.
The one channel car telemetry cannot reach.
In the simulator, SPARK records brain activity, heart rate, head movements and the car telemetry on one timeline. Here is what that gives the driver and the team.



SPARK does not stop at measuring. It builds an absolute reference for each car and circuit, the best lines and the best brain states, and coaches the driver towards it while the session runs.
The best trajectory for each car and circuit, made of the best passages measured.
The brain and body states measured on the best passages, as a target to drive towards.
Every input recorded to the millisecond, aligned on the brain to within a few milliseconds.
Where the head turns and where the car goes, in three dimensions, corner by corner.
Race your best lap like the ghost of a video game: line, speed and brain state.
Advice during the session, corner by corner, not only in the debrief.
Driving schools, academies, drivers, sim racers, teams and their coaches: the same measurement, put to work for what each one does in the simulator. A reference for each car, coaching, the mental state measured and progress followed over time.
Teach on the simulator, and see what each student takes in.
Your simulators become a measured training programme.
You prepare on a simulator, at home or with your team: make every session count.
What top-level programmes measure, now at your rig.
An objective read on every driver in the programme.
A human channel next to the telemetry you already trust.
Measuring what happens in the driver's head has long been limited to a handful of top-level programmes. SPARK makes it available to every sim racer, every driver and every team, in the simulator.
Everything travels in one case: the instrument the driver wears, the box and its touchscreen. Opened next to the simulator, running in minutes. Brain activity, heart rate and head movements, captured from the first lap to the last.
Next to the simulator: the driver's state and the telemetry on one timeline, with algorithmic coaching corner by corner while the session runs, and a debrief written by AI.
The reference cloud: telemetry, biometrics and EEG from every session, with the debrief, the circuit logbook and the progression over time. It also holds the performance models and the optimal reference models (circuit, EEG, biometrics), trained on every measured session.
It is the measurement of the driver's brain activity, typically by EEG, to understand cognitive load, attention and fatigue at the wheel. SPARK Simracing does it in a car simulator and aligns it with the telemetry, corner by corner.
Live coaching, corner by corner, against an absolute reference: the best line and the best brain state measured for that car and circuit, with the ghost of the best lap to race against.
Telemetry tells you what the car did. SPARK tells you what the driver did and why: the load, attention and fatigue behind each input, on the same timeline.
Motorsport in a real car is one of the domains of the instrument: the same measurement of the driver, aligned on the car's data.
Driving schools, academies with simulators, racing drivers who train on a simulator, sim racers, teams and driver development programmes, coaches and race engineers.
SPARK is fitted programme by programme. Request access and someone on the team answers you personally.
What a racing driver's cognitive load is, why it costs lap time and how to measure it with questionnaires, EEG and heart signals. What the science says.
Read the article Resources · 5 min readMotion, vibration, electrodes, synchronisation: why measuring a driver's brain activity inside a car is so hard, and what the published studies actually show.
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