Effects of Cognitive Fatigue on Gait

The goal of this study is to comprehend how mental fatigue could affect human gait. The main questions to answer are:

* Does mental fatigue change how people walk? * How long does it take for walking patterns to return to normal after mental fatigue sets in? * What role do constructs like boredom, sleepiness, and motivation play in this relationship?

To achieve this, participants will take part in the experiment, split into two sessions:

Day 1 (online, about 25 minutes): Practice session. Participants will practice a computer task that will be used to induce mental fatigue in the next session.

Day 2 (in-person, about 1.5 to 2 hours): Participants will wear several wearable sensors: motion sensors on their legs, feet, and back, sensor insoles in their shoes, a cap that measures brain activity, and glasses that track eye movement. After sensor placement, participants will walk in a straight line for 10 meters to measure their normal walking pattern. They will then complete a 32-minute computer task designed to induce mental fatigue. Afterward, participants will walk in a straight line for 10 meters again, rest for 3 minutes, and repeat this walk-and-rest cycle 3 more times. Participants will also answer short questions about how tired, bored, and alert they feel throughout the session.