Semin Hear 2012; 33(03): 283-294
DOI: 10.1055/s-0032-1315727
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Magnetic Resonance Imaging Correlates of Dichotic Listening Performance in Multiple Sclerosis

Yosef A. Berlow
1   Advanced Imaging Research Center
2   Department of Behavioral Neuroscience
,
James Pollaro
1   Advanced Imaging Research Center
,
Christine Krisky
1   Advanced Imaging Research Center
,
John Grinstead
1   Advanced Imaging Research Center
8   Siemens Medical Solutions, USA Inc., Malverne, Pennsylvania
,
Mathew Snodgrass
1   Advanced Imaging Research Center
,
Keith Kohout
1   Advanced Imaging Research Center
,
M. Samantha Lewis
6   National Center for Rehabilitative Auditory Research (NCRAR)
8   Siemens Medical Solutions, USA Inc., Malverne, Pennsylvania
,
Debra Wilmington
6   National Center for Rehabilitative Auditory Research (NCRAR)
8   Siemens Medical Solutions, USA Inc., Malverne, Pennsylvania
,
Michele Hutter
6   National Center for Rehabilitative Auditory Research (NCRAR)
,
Linda Casiana
6   National Center for Rehabilitative Auditory Research (NCRAR)
,
Mary Fitzpatrick
6   National Center for Rehabilitative Auditory Research (NCRAR)
8   Siemens Medical Solutions, USA Inc., Malverne, Pennsylvania
,
David J. Lilly
6   National Center for Rehabilitative Auditory Research (NCRAR)
,
Stephen Fausti
6   National Center for Rehabilitative Auditory Research (NCRAR)
7   Neurology Service, Portland VA Medical Center, Portland, Oregon
,
Robert Folmer
6   National Center for Rehabilitative Auditory Research (NCRAR)
8   Siemens Medical Solutions, USA Inc., Malverne, Pennsylvania
,
Dennis Bourdette
7   Neurology Service, Portland VA Medical Center, Portland, Oregon
4   Department of Neurology, Oregon Health & Science University
,
William D. Rooney
1   Advanced Imaging Research Center
2   Department of Behavioral Neuroscience
5   Department of Biomedical Engineering, Oregon Health & Science University
› Author Affiliations
Further Information

Publication History

Publication Date:
31 July 2012 (online)

Preview

Abstract

Multiple sclerosis (MS) pathology can cause disruptions in central auditory processing. Here, we applied quantitative magnetic resonance imaging (MRI) techniques to investigate the impact of global neurodegenerative processes on dichotic listening performance in MS. We studied 28 subjects with clinically definite MS and 26 healthy controls using 3T MRI and a dichotic digits task (DDT) performed in the scanner. Subjects with MS displayed increased white matter lesions, prolonged water proton longitudinal relaxation time constants in normal appearing white matter, reduced gray matter volumes, and reduced corpus callosum areas compared with controls. No group differences were found for any of the DDT performance measures. In subjects with MS, corpus callosum area was strongly correlated with DDT performance. This relationship remained present after controlling for other measures of neuropathology, suggesting that callosal atrophy directly impacts dichotic listening performance in MS.