Editing Absolute pitch (section)

===Difference in cognition, not elementary sensation===
Physically and functionally, the auditory system of an absolute listener evidently does not differ from that of a non-absolute listener.<ref>{{cite journal |author=Sergeant, D. |title=Experimental investigation of absolute pitch |journal=Journal of Research in Music Education|volume=17 |year=1969 |pages=135–143 |doi=10.2307/3344200 |issue=1 |publisher=Journal of Research in Music Education, Vol. 17, No. 1 |jstor=3344200|s2cid=144294536 }}</ref> Rather, "it reflects a particular ability to analyze frequency information, presumably involving high-level cortical processing."<ref>{{cite journal |author=Gregersen, P. K. |title=Instant Recognition: The Genetics of Pitch Perception |journal=The American Journal of Human Genetics| volume=62 |year=1998 |pages=221–223 |doi=10.1086/301734 |pmid=9463341 |issue=2 |pmc=1376907}}</ref> Absolute pitch is an act of [[cognition]], needing memory of the frequency, a label for the frequency (such as "B-flat"), and exposure to the range of sound encompassed by that categorical label. Absolute pitch may be directly analogous to recognizing [[color]]s, [[phoneme]]s (speech sounds), or other categorical perception of [[Stimulus (physiology)|sensory stimuli]]. For example, most people have learned to recognize and name the color ''blue'' by the range of frequencies of the [[electromagnetic radiation]] that are perceived as [[light]]; those who have been exposed to musical notes together with their names early in life may be more likely to identify the note C.<ref name="Ref-1">{{cite journal |author1=Takeuchi, A. H. |author2=Hulse, S. H. |title=Absolute pitch |journal=Psychological Bulletin|volume=113 |year=1993 |pages=345–361 |doi=10.1037/0033-2909.113.2.345 |pmid=8451339 |issue=2}}</ref> Although it was once thought that it "might be nothing more than a general human capacity whose expression is strongly biased by the level and type of exposure to music that people experience in a given culture",<ref name="google">{{cite book|title=The Origins of Music|author1=Wallin, N.L.|author2=Merker, B.|author3=Brown, S.|date=2000|publisher=A. Bradford|isbn=9780262731430|url=https://books.google.com/books?id=vYQEakqM4I0C&pg=PA13|page=13|access-date=August 16, 2015}}</ref> absolute pitch may be influenced by genetic variation, possibly an [[autosomal]] [[dominant gene]]tic trait.<ref>{{cite journal |author1=Profita, J. |author2=Bidder, T. G. |title=Perfect pitch |journal=American Journal of Medical Genetics|volume=29 |year=1988 |pages=763–771 |doi=10.1002/ajmg.1320290405 |pmid=3400722 |issue=4}}</ref><ref>{{cite journal |author=Baharloo, S. |author2=Johnston, P. A. |author3=Service, S. K. |author4=Gitschier, J. |author5=Freimer, N. B. |name-list-style=amp |title=Absolute pitch: An approach for identification of genetic and nongenetic components |journal=The American Journal of Human Genetics|volume=62 |year=1998 |pages=224–231 |doi=10.1086/301704 |pmid=9463312 |issue=2 |pmc=1376881| url=http://www.journals.uchicago.edu/AJHG/journal/issues/v62n2/970244/970244.web.pdf |archive-url=https://ghostarchive.org/archive/20221009/http://www.journals.uchicago.edu/AJHG/journal/issues/v62n2/970244/970244.web.pdf |archive-date=October 9, 2022 |url-status=live}}</ref><ref name="Theusch, E. et al."/><ref name="Drayna, D. et al."/><ref name="gregersen_2013"/>