Editing Hyperacusis (section)

==== Inner ear theory ====
Type II afferent fibers of the cochlear nerve are not responsible for hearing like the type I afferent fibers. They are thought to be cochlear pain neurons.  Gain of function of these type II afferent fibers may be caused by a flood of ATP after hair cell damage.<ref name="Liu-2015" /><ref name= "Flores-2015" /> Now sensitized, they react to the small amount of ATP released during the normal process of hearing. This may result in pain.<ref name="Liu-2015">{{cite journal | vauthors = Liu C, Glowatzki E, Fuchs PA | title = Unmyelinated type II afferent neurons report cochlear damage | journal = Proceedings of the National Academy of Sciences of the United States of America | volume = 112 | issue = 47 | pages = 14723–27 | date = November 2015 | pmid = 26553995 | pmc = 4664349 | doi = 10.1073/pnas.1515228112 | doi-access = free | bibcode = 2015PNAS..11214723L }}</ref><ref name= "Flores-2015">{{Cite journal |last1=Flores |first1=Emma N. |last2=Duggan |first2= Anne |last3= Madathany |first3=Thomas |last4= Hogan |first4=Ann K. |last5=Márquez |first5=Freddie |last6=Kumar |first6= Gagan |last7=Seal |first7=Rebecca |last8=Edwards |first8= Robert |last9=Liberman |first9=M. Charles |last10=García-Añoveros |first10=Jaime |date=2015-03-02 |title=A Non-canonical Pathway from Cochlea to Brain Signals Tissue-damaging Noise |journal=Current Biology |volume=25 |issue=5 |pages= 606–12 |doi= 10.1016/j.cub.2015.01.009 |issn=0960-9822 |pmc=4348215 |pmid=25639244|bibcode=2015CBio...25..606F }}</ref>