Load-dependent brain activity related to acoustic short-term memory for pitch: magnetoencephalography and fMRI.
Acoustic short-term memory (ASTM) refers to the temporary retention of acoustic information. In the present study, we investigated the neural correlates of ASTM for pitch using magnetoencephalography (MEG) and functional magnetic resonance imaging (fMRI). Both MEG and fMRI analyses revealed brain activations that varied with memory load in the vicinity of secondary auditory cortex (Brodmann's area, BA22) and superior parietal cortex (BA5/7), while analyses specific to MEG data revealed load-related activations in the frontal cortex (BA9/10).
Grimault
Stephan
S
International Laboratory for Brain Music and Sound Research, Montréal, Québec, Canada. stephan.yann.grimault@umontreal.ca
Lefebvre
Christine
C
Vachon
François
F
Peretz
Isabelle
I
Zatorre
Robert
R
Robitaille
Nicolas
N
Jolicoeur
Pierre
P
D000161:Acoustic Stimulation; D000328:Adult; D001921:Brain / Q000502:physiology*; D002540:Cerebral Cortex / Q000502:physiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D015225:Magnetoencephalography; D008570:Memory, Short-Term; D010898:Pitch Perception / Q000502:physiology*; D055815:Young Adult