Abstract:
OBJECTIVE:We report a case study on possible alterations in resting-state functional connectivity between the auditory network and non-auditory brain regions in tinnitus patients. DESIGN:Independent component analyses were performed to evaluate coherent spontaneous activity in distributed brain networks. The resting-state functional connectivity scores between the right and left auditory networks were measured. Direct comparison of resting-state connectivity between tinnitus patients and controls was made using a two-sample t-test. STUDY SAMPLE:Four patients (three male, one female; mean age 45 ± 3.92 years) with chronic tinnitus lateralized to the left ear, and six age-matched controls (four male, two female; mean age 45 ± 2.76 years) participated in this case study. RESULTS:The average resting-state functional connectivity (FC) score between the left and right auditory cortical regions was significantly lower in tinnitus patients than in controls (P < 0.05). Direct comparison between patients and controls showed that increased functional connectivity caused by tinnitus occurred predominantly in the left amygdala and in the dorsomedial prefrontal cortex. CONCLUSIONS:Our pilot study suggested that resting state functional magnetic resonance imaging (fMRI) could be useful to investigate possible alterations in resting-state neuronal activity between the auditory and non-auditory networks in tinnitus patients.
journal_name
Int J Audioljournal_title
International journal of audiologyauthors
Kim JY,Kim YH,Lee S,Seo JH,Song HJ,Cho JH,Chang Ydoi
10.3109/14992027.2011.652677subject
Has Abstractpub_date
2012-05-01 00:00:00pages
413-7issue
5eissn
1499-2027issn
1708-8186journal_volume
51pub_type
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