But suggests there are some sounds that we find intrinsically unpleasant, and in response to these the amygdala appears to directly modulate the auditory cortex, heightening our perception of sounds we find unpleasant. Only 13 participants were used, so it's not too encompassing, but interesting nonetheless, for numerous reasons.
Such an experience, if it happened (and it genuinely hasn't, I promise) would be mortifyingly embarrassing for me, and every time I remember it or think of it I'd no doubt be overcome by a nearly crippling sense of shame and embarrassment. The amygdala is what does this; it gives memories their , which is a crucial element of learning, teaching us that some things are pleasant (e.g. good food sources) and should be sought out, and some things are unpleasant and dangerous (e.g. predators, poisoned food), and should be avoided. If I had no amygdala, I would have still been embarrassed by the instant as it happened, but I wouldn't remember that element of it. My memory of it would be essentially neutral, as if I'd catalogued it away as "Trousers-down Christmas-pants Apparent-assault incident no. 396.b" (If I don't learn the negative consequences of the event, there's no reason I wouldn't end up repeating it)
Listening to the noises inside the scanner they rated them from the most unpleasant - the sound of knife on a bottle - to pleasing - bubbling water. Researchers were then able to study the brain response to each type of sound.