Smartphone Application, Mood and Stress

Smartphone Application, Mood and Stress

The purpose of this study is to investigate the placebo effect in a smartphone-based training, ostensibly designed to improve mood and perceived stress by daily exposition to either mock sound or color.

The overall goal of the outlined study is to investigate the placebo effect in a smartphone-based training, ostensibly designed to improve mood and perceived stress by daily exposition to either mock sound or color. During 14 days, subjects will participate in regular daily training sessions. During another 6 days, subjects will transfer the smartphone-based training to daily life.

Inclusion Criteria:

• Access to smartphone during study period

Exclusion Criteria:

• Severe visual impairment
• Dyschromatopsia
• Severe defective hearing
• Regular intake of medication (excl. contraceptives)
• Severe mental disorders