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AMUSIA VERSUS PERFECT PITCH

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by

MQ L

on 22 January 2015

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Transcript of AMUSIA VERSUS PERFECT PITCH

AMUSIA VERSUS ABSOLUTE PITCH
Absolute
pitch
Perfect pitch
Amusia
Tone deafness
Inability to identify out-of-scale notes from conventional but unfamiliar melodies
Definition
Ability to identify the pitch of a note without a reference tone
Prevalence
Amusia
Two types of amusia:
- Congenital
- Acquired
Out of 600 subjects:
4% had similar results to amusics
Task: Identify wrong notes from common pieces
Musical training before 4 years old: 40% with AP
Musical training after 9 years old: 3% with AP
NATURAL
ability
9% recurence rate amongst family members
Absolute pitch
Higher AP prevalence amongst Asian: Tonal language?
Note: Korean and Japanese are not tonal language
Probably due to early musical training
Perceives music as a different language
Neurology
70-80% HERITABLE
Genetics > Environment
Cultural invariant (genetics) and environment
Genetic and environmental influences
Many neural networks:
- Implicit pitch-tracking mechanism
The Amusic's Brain
Absolute Pitch Brain
Right IFG

Related to auditory scene analysis
Working memory mechanism
Full transcript