Please read carefully before starting:

• Environment: Sit in a quiet room and minimize distractions.
• Execution: Each test consists of 30 trials.
• Errors: Pressing a key too early (before the stimulus appears) or pressing the wrong key will be counted as an error.
• Breaks: Between trials, there will be a random pause (2–6 seconds). Stay focused!

Specific Tasks:

1. Test 1 (Simple Reaction): A rectangle will slowly appear at a random position. Press SPACE as soon as you can see it.
2. Test 2 (Decision Reaction): You will see Circles and Triangles in Green or Yellow. Press SPACE only for CIRCLES. Do nothing for triangles.
3. Test 3 (Complex Stimuli): You will see images of food. Press:
   • 'D' for German dishes
   • 'F' for Vietnamese dishes
   • 'G' for Spanish dishes