Table 1.

Overview of experimental procedure of one experimental session.

Instructions, Practice, and Baseline Phase		Experimental Light Exposure Phase
100 lx at Eye		Exposure to Single Illuminance in Range of 20-2000 lx at Eye
Instructions, and task practice	Block 0: measurements of (correlates of) alertness and executive functioning	Block 1: measurements of (correlates of) alertness and executive functioning	Block 2: measurements of (correlates of) alertness and executive functioning	Block 3: measurements of (correlates of) alertness and executive functioning	Block 4: measurements of (correlates of) alertness and executive functioning	Quest.
10 min	15 min	15 min	15 min	15 min	15 min	5 min