An increasing number of complaints about wind turbine noise particularly refer to fears about the health effects of infrasound emitted by sources such as wind turbines (WT). Research on the health effects of infrasound emitted by WT reveals inconsistent results. While some studies report health risks due to infrasound, most reviews conclude that there is no extra health risk due to infrasound from WT. We present a study in which the cognitive and emotional concept of infrasound and its role in the acceptance of WT is studied. First, the cognition and emotion of individuals related to infrasound are studied in qualitative in-depth interviews among residents living near WT, heat pumps and in a residential area without such facilities. In a following quantitative survey conducted in residential areas near WT the role of the risk perception of infrasound for the acceptance of the local WT is investigated. It is found that although subjects have no clear concept of infrasound, the main emotion is the fear of adverse health effects of infrasound. The role of this perception for the WT acceptance compared to other potential co-determinants are presented in this paper.