We administer an online Guessing Game collecting responses across all 24 h of the day. While time-of-day itself does not affect guesses, when including trait-level sleepiness and previous night sleep, adverse sleep states lead to responses significantly farther from equilibrium.

In the current study we explore whether enriching the brain's supply of glucose will improve the quality and speed of decision making. Prior research shows that glucose enrichment supports cognition and more recent research has shown it can improve decision making on some tasks. To test our...

In the current study we explore whether enriching the brain’s supply of glucose will improve the quality and speed of decision making. Prior research shows that glucose enrichment supports cognition and more recent research has shown it can improve decision making on some tasks. To test our...