Neuroscientists Figure Out Why Harsh Sounds Bother Brain
Why do the harsh sounds emitted by alarms or human shrieks grab our attention?
What is going on in the brain when it detects these frequencies? Neuroscientists from the University of Geneva (UNIGE) and Geneva University Hospitals (HUG), Switzerland, have been analyzing how people react when they listen to a range of different sounds, the aim being to establish the extent to which repetitive sound frequencies are considered unpleasant.
The scientists also studied the areas inside the brain that were stimulated when listening to these frequencies. Surprisingly, their results – which are