The discussion explores the phenomenon of tone deafness, questioning its causes and underlying physiological mechanisms. Participants examine whether the condition arises from neural disconnections in the brain, genetic factors, or developmental issues. The conversation also touches on the contrasting concept of perfect pitch and its potential neurological correlates.
Participants do not reach a consensus on the causes of tone deafness or the nature of perfect pitch, with multiple competing views and ongoing questions remaining unresolved.
The discussion includes assumptions about the genetic and developmental aspects of tone deafness and perfect pitch, but these assumptions are not fully explored or validated within the conversation.
But how exactly is there an entire piece missing? I mean, is it something to do with having no codes for it in one's DNA due to some sort of mutation? Or that that area is so underdeveloped that it is considered missing?DaveC426913 said:Sonuvagun, there does seem to be a physiological basis for it - an actual missing piece of the brain.
"In nine of ten tone-deaf people, the superior arcuate fasciculus in the right hemisphere could not be detected, suggesting a disconnection between the posterior superior temporal gyrus and the posterior inferior frontal gyrus."
https://en.wikipedia.org/wiki/Tone_deafness
"The arcuate fasciculus (Latin, curved bundle) is a bundle of axons that forms part of the superior longitudinal fasciculus. The arcuate bidirectionally connects caudal temporal cortex and inferior parietal cortex to locations in the frontal lobe."
https://en.wikipedia.org/wiki/Arcuate_fasciculus
Essentially a bundle of axons connecting Broca's area with Wernicke's area.
I wondered the same thing.Priyadarshini said:But how exactly is there an entire piece missing? I mean, is it something to do with having no codes for it in one's DNA due to some sort of mutation? Or that that area is so underdeveloped that it is considered missing?