Conference Paper: fMRI study of sound pressure level processing in the Central Auditory System
| Title | fMRI study of sound pressure level processing in the Central Auditory System |
|---|---|
| Authors | Zhang, JW Lau, C Cheng, JS Xing, KK Zhou, IY Cheung, MMH Wu, EX |
| Issue Date | 2012 |
| Publisher | International Society of Magnetic Resonance in Medicine. |
| Citation | The 20th Annual Meeting & Exihibition of the International Society of Magnetic Resonance in Medicine (ISMRM 2012), Melbourne, Australia, 5-11 May 2012. In Proceedings of the 20th ISMRM, 2012, no. 2898 [How to Cite?] |
| Abstract | Intensity is an important physical property of the sound wave and is usually reported as sound pressure level (SPL). This study examines the fMRI hemodynamic responses in the rat inferior colliculus (IC), lateral lemniscus (LL), medial geniculate body (MGB) and auditory cortex (AC) over a broad 72dB SPL range using sparse temporal sampling. The BOLD signal change increases significantly with SPL in IC and LL, but not in MGB and AC, which agrees with electrophysiology findings. This is the first fMRI observation of differences in SPL dependences between auditory structures and furthers our understanding of SPL processing. |
| Description | Theme: Adapting MR in a Changing World Electronic Poster Session - fMRI: Neuroscience Applications & Brain Physiology: no. 2898 (computer no. 79) |
| dc.contributor.author | Zhang, JW |
|---|---|
| dc.contributor.author | Lau, C |
| dc.contributor.author | Cheng, JS |
| dc.contributor.author | Xing, KK |
| dc.contributor.author | Zhou, IY |
| dc.contributor.author | Cheung, MMH |
| dc.contributor.author | Wu, EX |
| dc.date.accessioned | 2012-09-20T08:16:10Z |
| dc.date.available | 2012-09-20T08:16:10Z |
| dc.date.issued | 2012 |
| dc.description.abstract | Intensity is an important physical property of the sound wave and is usually reported as sound pressure level (SPL). This study examines the fMRI hemodynamic responses in the rat inferior colliculus (IC), lateral lemniscus (LL), medial geniculate body (MGB) and auditory cortex (AC) over a broad 72dB SPL range using sparse temporal sampling. The BOLD signal change increases significantly with SPL in IC and LL, but not in MGB and AC, which agrees with electrophysiology findings. This is the first fMRI observation of differences in SPL dependences between auditory structures and furthers our understanding of SPL processing. |
| dc.description.nature | link_to_OA_fulltext |
| dc.description | Theme: Adapting MR in a Changing World |
| dc.description | Electronic Poster Session - fMRI: Neuroscience Applications & Brain Physiology: no. 2898 (computer no. 79) |
| dc.description.other | The 20th Annual Meeting & Exihibition of the International Society of Magnetic Resonance in Medicine (ISMRM 2012), Melbourne, Australia, 5-11 May 2012. In Proceedings of the 20th ISMRM, 2012, no. 2898 |
| dc.identifier.citation | The 20th Annual Meeting & Exihibition of the International Society of Magnetic Resonance in Medicine (ISMRM 2012), Melbourne, Australia, 5-11 May 2012. In Proceedings of the 20th ISMRM, 2012, no. 2898 [How to Cite?] |
| dc.identifier.hkuros | 207480 |
| dc.identifier.uri | http://hdl.handle.net/10722/165192 |
| dc.language | eng |
| dc.publisher | International Society of Magnetic Resonance in Medicine. |
| dc.publisher.place | Australia |
| dc.relation.ispartof | Proceedings of the 20th Annual Meeting of the International Society of Magnetic Resonance in Medicine, ISMRM 2012 |
| dc.title | fMRI study of sound pressure level processing in the Central Auditory System |
| dc.type | Conference_Paper |