Doctors determined it was necessary to remove the damaged are of the man’s left amygdala.
According to New Scientist, after successful surgery, the man soon noticed a “ ‘stomach-lurching’ aversion to music – which was particularly noticeable when he heard the song accompanying a certain TV commercial – but he also discovered he was no longer afraid of spiders.”
The report goes on to state that the man eventually got over his aversion to music, but that his arachnophobia never returned. He is able to touch and observe spiders at close range and ‘actually finds them fascinating.’
The man has reported no other changes to fears or anxieties. For example, he has the same level of anxiety about public speaking post surgery.