Fine-grained pitch processing of music and speech in congenital amusia.
Congenital amusia is a lifelong disorder of music processing that has been ascribed to impaired pitch perception and memory. The present study tested a large group of amusics (n=17) and provided evidence that their pitch deficit affects pitch processing in speech to a lesser extent: Fine-grained pitch discrimination was better in spoken syllables than in acoustically matched tones. Unlike amusics, control participants performed fine-grained pitch discrimination better for musical material than for verbal material. These findings suggest that pitch extraction can be influenced by the nature of the material (music vs speech), and that amusics' pitch deficit is not restricted to musical material, but extends to segmented speech events.
CNRS, UMR5292,INSERM, U1028, Lyon Neuroscience Research Center, Auditory Cognition and Psychoacoustics Team, Lyon, F-69000, France. barbara.tillmann@olfac.univ-lyon1.fr
Barbara
B
Tillmann
Elena
E
Rusconi
Caroline
C
Traube
Brian
B
Butterworth
Carlo
C
Umiltà
Isabelle
I
Peretz
D001308:Auditory Perceptual Disorders / Q000503:physiopathology*; D016022:Case-Control Studies; D006801:Humans; D009146:Music; D010897:Pitch Discrimination / Q000502:physiology*; D013067:Speech Perception / Q000502:physiology*