This dataset explores the human capabilities of thinking logically during stressful situations. First of a baseline is established by performing a logical test in a stress-free environment. This test consists of masked sentences, where the subject must fill in the masked words appropriately. After the first test phase, a second test phase is performed. This happens in a stressful environment. The environment consists of a room with a single table, where the test is performed. During the test, many people stray around in the room, stirring chaos, whilst telephone noises are emitted from speakers.