Auditory imagery mismatch negativity elicited in musicians.
A mismatch between auditory sensation and expectant imagery of syllables elicited a possible equivalent of mismatch negativity in a previous study. The purpose of this study was to verify whether auditory imagery from musical notation could also mediate such imagery-based mismatch negativity. Neuromagnetic recording was obtained from eight musicians, who were instructed to identify unpredictably occurring pitch mismatches between a random tone sequence and a visually presented musical score. The difference between incongruent and congruent responses showed a magnetic distribution consistent with two frontal-negative current dipoles bilaterally located in the vicinity of Heschl's gyrus, peaking at approximately 150 ms in latency. This imagery-based mismatch negativity may represent an early neural process of deviance detection between the sensory input and expectant imagery.
Yumoto
Masato
M
Department of Laboratory Medicine, Faculty of Medicine, University of Tokyo, Tokyo, Japan. yumoto-tky@umin.ac.jp
Matsuda
Maki
M
Itoh
Kenji
K
Uno
Akira
A
Karino
Shotaro
S
Saitoh
Osamu
O
Kaneko
Yuu
Y
Yatomi
Yutaka
Y
Kaga
Kimitaka
K
D000161:Acoustic Stimulation / Q000379:methods; D000328:Adult; D001303:Auditory Cortex / Q000502:physiology* / Q000528:radiation effects; D001307:Auditory Perception / Q000502:physiology* / Q000528:radiation effects; D001931:Brain Mapping; D003265:Contingent Negative Variation; D004585:Electrooculography; D005072:Evoked Potentials, Auditory / Q000502:physiology* / Q000528:radiation effects; D005260:Female; D006801:Humans; D007092:Imagination / Q000502:physiology*; D015225:Magnetoencephalography / Q000379:methods; D008297:Male; D008875:Middle Aged; D009146:Music; D010775:Photic Stimulation / Q000379:methods; D011930:Reaction Time / Q000502:physiology / Q000528:radiation effects