Therefore, more such case studies are warranted to elucidate the pathophysiology of MHs. Few reports have described longitudinal neuroimaging findings obtained under different conditions with and without MHs (Kasai et al., 1999 Izumi et al., 2002 Shoyama et al., 2010). However, most of these studies were case reports describing neuroimaging assessment conducted at a single time point. Their results suggest that several brain areas including the superior temporal sulcus, basal ganglia, orbitofrontal cortex, and precuneus are likely to be involved in MH production. (2017) reviewed neuroimaging studies that have examined MHs. Although the pathophysiological process of MHs is not fully understood, neuroimaging studies have been conducted to investigate the mechanisms of MHs. Actually, MHs have been associated with hearing impairment, neurologic diseases, brain lesions, drug effects, and psychiatric diseases including mood disorders (Golden and Josephs, 2015 Muraosa et al., 2020). Thus, it is important to examine the etiology of MHs. MHs can cause patients significant distress, i.e., concentration difficulties, insomnia, impaired quality of life, anxiety and/or depression, and fear that they are dementing or otherwise psychiatrically ill (Coebergh et al., 2015). ![]() Musical hallucinations (MHs) are a specific type of auditory hallucination in which the auditory perception comprises songs, rhythm, harmony, and melody in the lack of actual sound (Golden and Josephs, 2015). Keywords: Musical Hallucinations, Depressive Disorder, Regional Cerebral Blood Flow, Single Photon Emission Computed Tomography (SPECT) This report suggests that increased rCBF in multiple brain areas, especially in the basal ganglia and thalamus, might be related to the pathophysiology of MHs in depressed patients. During MHs, rCBF was increased in the basal ganglia, thalamus, amygdala, and parietal lobes. SPECT scans were performed to assess the levels of rCBF in several brain areas before and during MHs. Then MHs disappeared with treatment of depression or following improvement in the mood. During the treatment period, she experienced MHs. A 72-year-old depressed woman was admitted to our hospital. ![]() This report describes a depressed patient whose regional cerebral blood flow (rCBF) was assessed using single-photon emission computed tomography (SPECT) before and during MHs. ![]() Few reports have described longitudinal neuroimaging findings in different conditions before and during MHs. Musical hallucinations (MHs) are a type of auditory hallucination in which music is perceived despite a lack of actual sound. FRONTIERS IN MEDICAL CASE REPORTS - Volume 3 Issue 5, (Sep-Oct, 2022)Ĭhanges in Regional Cerebral Blood Flow of A Depressed Patient Before and During Musical Hallucinations: A Case ReportĪuthor: Haruka Muraosa, Akihito Suzuki, Ryota Kobayashi, Toshinori Shirata
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