منابع مشابه
Structural brain changes in tinnitus.
Tinnitus is a common but poorly understood disorder characterized by ringing or buzzing in the ear. Central mechanisms must play a crucial role in generating this auditory phantom sensation as it persists in most cases after severing the auditory nerve. One hypothesis states that tinnitus is caused by a reorganization of tonotopic maps in the auditory cortex, which leads to an overrepresentatio...
متن کاملTinnitus Neural Mechanisms and Structural Changes in the Brain: The Contribution of Neuroimaging Research
Introduction Tinnitus is an abnormal perception of sound in the absence of an external stimulus. Chronic tinnitus usually has a high impact in many aspects of patients' lives, such as emotional stress, sleep disturbance, concentration difficulties, and so on. These strong reactions are usually attributed to central nervous system involvement. Neuroimaging has revealed the implication of brain s...
متن کاملStructural Brain Changes Following Left Temporal Low-Frequency rTMS in Patients with Subjective Tinnitus
Repetitive transcranial magnetic stimulation (rTMS) of the temporal cortex has been used to treat patients with subjective tinnitus. While rTMS is known to induce morphological changes in healthy subjects, no study has investigated yet whether rTMS treatment induces grey matter (GM) changes in tinnitus patients as well, whether these changes are correlated with treatment success, and whether GM...
متن کاملStructural changes of the corpus callosum in tinnitus
OBJECTIVES In tinnitus, several brain regions seem to be structurally altered, including the medial partition of Heschl's gyrus (mHG), the site of the primary auditory cortex. The mHG is smaller in tinnitus patients than in healthy controls. The corpus callosum (CC) is the main interhemispheric commissure of the brain connecting the auditory areas of the left and the right hemisphere. Here, we ...
متن کاملStructural Brain Changes in PTSD
Chronic stress induces structural and hormonal changes in the various brain structures: caudate nucleus, putamen, hippocampus, amygdala, prefrontal cortex in participants with post‐traumatic stress disorder. Based on the results of recent neuroimaging studies on post‐traumatic stress disorder, hippocampus, amygdala, and prefrontal cortex play a key role in triggering the typical symptoms of PTS...
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ژورنال
عنوان ژورنال: Cerebral Cortex
سال: 2005
ISSN: 1460-2199,1047-3211
DOI: 10.1093/cercor/bhj070