Sound Research WIKINDX
Sound Research WIKINDX |
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Hoshiyama, M., Gunji, A., & Kakigi, R. (2001). Hearing the sound of silence: A magnetoencephalographic study. NeuroReport, 12(6), 1097–1102. Added by: Mark Grimshaw-Aagaard (02/05/2014, 11:43) Last edited by: Mark Grimshaw-Aagaard (02/05/2014, 11:56) |
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| Resource type: Journal Article Peer reviewed ID no. (ISBN etc.): 0959-4965 BibTeX citation key: Hoshiyama2001 Email resource to friend View all bibliographic details  |
Categories: General Keywords: Aural Imagery, Cognition, Imagination, Neuroscience Creators: Gunji, Hoshiyama, Kakigi Collection: NeuroReport |
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| Abstract |
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We visualized the brain activity for retrieval imagery of a sound using dual 37-channel magnetometers in seven right-handed healthy subjects. A soundless video image of a hammer striking an anvil was presented on a screen. Significantly larger evoked magnetic fields were recorded, dominantly in the right hemisphere, in six subjects when they imagined the sound than when they did not. The initial peak of the response was 151.0 ± 26.5 ms (mean ± s.d.) after the blow. Equivalent current dipoles (ECDs) for the responses recorded from the right hemisphere were located around the inferior frontal sulcus in three subjects and in the insular region in three subjects, but reliable ECDs were not estimated from the left hemisphere. The results suggested that the initial activity for sound retrieval imagery appeared around the inferior frontal and insular areas, dominantly in the right hemisphere.
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p.1110
"Our results suggested that the initial activity for sound retrieval was not related to the primary auditory cortex but to the IF-INS regions, although the activities of the primary auditory cortex might follow later in the neural processes of retrieval."
Added by: Mark Grimshaw-Aagaard
Keywords: Aural Imagery Imagination Neuroscience |