Abstract
Hemispheric differences in the temporal processing of musical sounds within the primary auditory cortex were investigated using functional magnetic resonance imaging (fMRI) time series analysis on a 3.0 T system in right-handed individuals who had no formal training in music. The two hemispheres exhibited a clear-cut asymmetry in the time pattern of fMRI signals. A large transient signal component was observed in the left primary auditory cortex immediately after the onset of musical sounds, while only sustained activation, without an initial transient component, was seen in the right primary auditory cortex. The observed difference was believed to reflect differential segmentation in primary auditory cortical sound processing. Although the left primary auditory cortex processed the entire 30-s musical sound stimulus as a single event, the right primary auditory cortex had low-level processing of sounds with multiple segmentations of shorter time scales. The study indicated that musical sounds are processed as 'sounds with contents', similar to how language is processed in the left primary auditory cortex.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 470-473 |
| Number of pages | 4 |
| Journal | NeuroReport |
| Volume | 22 |
| Issue number | 10 |
| DOIs | |
| State | Published - Jul 13 2011 |
Fingerprint
Keywords
- Functional magnetic resonance imaging
- hemispheric specialization
- Heschl's gyrus
- primary auditory cortex
ASJC Scopus subject areas
- Neuroscience(all)
Cite this
Functional asymmetry in primary auditory cortex for processing musical sounds : Temporal pattern analysis of fMRI time series. / Izumi, Shuji; Itoh, Kosuke; Matsuzawa, Hitoshi; Takahashi, Sugata; Kwee, Ingrid; Nakada, Tsutomu.
In: NeuroReport, Vol. 22, No. 10, 13.07.2011, p. 470-473.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Functional asymmetry in primary auditory cortex for processing musical sounds
T2 - Temporal pattern analysis of fMRI time series
AU - Izumi, Shuji
AU - Itoh, Kosuke
AU - Matsuzawa, Hitoshi
AU - Takahashi, Sugata
AU - Kwee, Ingrid
AU - Nakada, Tsutomu
PY - 2011/7/13
Y1 - 2011/7/13
N2 - Hemispheric differences in the temporal processing of musical sounds within the primary auditory cortex were investigated using functional magnetic resonance imaging (fMRI) time series analysis on a 3.0 T system in right-handed individuals who had no formal training in music. The two hemispheres exhibited a clear-cut asymmetry in the time pattern of fMRI signals. A large transient signal component was observed in the left primary auditory cortex immediately after the onset of musical sounds, while only sustained activation, without an initial transient component, was seen in the right primary auditory cortex. The observed difference was believed to reflect differential segmentation in primary auditory cortical sound processing. Although the left primary auditory cortex processed the entire 30-s musical sound stimulus as a single event, the right primary auditory cortex had low-level processing of sounds with multiple segmentations of shorter time scales. The study indicated that musical sounds are processed as 'sounds with contents', similar to how language is processed in the left primary auditory cortex.
AB - Hemispheric differences in the temporal processing of musical sounds within the primary auditory cortex were investigated using functional magnetic resonance imaging (fMRI) time series analysis on a 3.0 T system in right-handed individuals who had no formal training in music. The two hemispheres exhibited a clear-cut asymmetry in the time pattern of fMRI signals. A large transient signal component was observed in the left primary auditory cortex immediately after the onset of musical sounds, while only sustained activation, without an initial transient component, was seen in the right primary auditory cortex. The observed difference was believed to reflect differential segmentation in primary auditory cortical sound processing. Although the left primary auditory cortex processed the entire 30-s musical sound stimulus as a single event, the right primary auditory cortex had low-level processing of sounds with multiple segmentations of shorter time scales. The study indicated that musical sounds are processed as 'sounds with contents', similar to how language is processed in the left primary auditory cortex.
KW - Functional magnetic resonance imaging
KW - hemispheric specialization
KW - Heschl's gyrus
KW - primary auditory cortex
UR - http://www.scopus.com/inward/record.url?scp=79959833781&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79959833781&partnerID=8YFLogxK
U2 - 10.1097/WNR.0b013e3283475828
DO - 10.1097/WNR.0b013e3283475828
M3 - Article
C2 - 21642880
AN - SCOPUS:79959833781
VL - 22
SP - 470
EP - 473
JO - NeuroReport
JF - NeuroReport
SN - 0959-4965
IS - 10
ER -