Disrupted Brain Functional Network Architecture in Chronic Tinnitus Patients - Chen YC, Feng Y, Xu JJ, Mao CN, Xia W, Ren J, Yin X.

PURPOSE: Resting-state functional magnetic resonance imaging (fMRI) studies have demonstrated the disruptions of multiple brain networks in tinnitus patients. Nonetheless, several studies found no differences in network processing between tinnitus patients...
Source: SafetyLit - Category: Global & Universal Tags: Distraction, Fatigue, Chronobiology, Vigilance, Workload Source Type: news

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AbstractLoud noise frequently results in hyperacusis or hearing loss (i.e., increased or decreased sensitivity to sound). These conditions are often accompanied by tinnitus (ringing in the ears) and changes in spontaneous neuronal activity (SNA). The ability to differentiate the contributions of hyperacusis and hearing loss to neural correlates of tinnitus has yet to be achieved. Towards this purpose, we used a combination of behavior, electrophysiology, and imaging tools to investigate two models of noise-induced tinnitus (either with temporary hearing loss or with permanent hearing loss). Manganese (Mn2+) uptake was used...
Source: Anatomy and Embryology - Category: Anatomy Source Type: research
Authors: Li C, Yu J, Li K, Hou K, Yu J Abstract The lateral foramen magnum region is defined as the bilateral occipital area that runs laterally up to the jugular foramen. The critical vasculatures of this region are not completely understood. Dural arteriovenous fistulas that occur in this region are rare and difficult to treat. Therefore, we searched PubMed to identify all relevant previously published English language articles about lateral foramen magnum dural arteriovenous fistulas, and we performed a review of this literature to increase understanding about these fistulas. Four types of dural arteriovenous fi...
Source: Interventional Neuroradiology - Category: Radiology Tags: Interv Neuroradiol Source Type: research
The jugular bulb is a venous structure linking the sigmoid sinus with the internal jugular vein. Jugular diverticulum is a rare condition characterized by extraluminal outpouching from the jugular bulb. As the patients may be totally asymptomatic, but sensorineural symptoms such as sensorineural hearing loss, tinnitus and vertigo can also occur. Diagnosis of these patients can be made by some radiologic methods such as high-resolution computerized tomography, magnetic resonance imaging, or a novel radiologic technique flat panel computed tomography. In this paper we report a 22-year-old female patient with jugular divertic...
Source: Journal of Craniofacial Surgery - Category: Surgery Tags: Brief Clinical Studies Source Type: research
Conclusions The study establishes that there is a relationship between presence of AG and IIH. Arachnoid granulation seems to act in a compensatory mechanism in patients with IIH.
Source: Journal of Computer Assisted Tomography - Category: Radiology Tags: Neuroradiology Source Type: research
Conclusions: Disrupted ionic homeostasis in the inner ear, but not the EH, may contribute to changes in the –SP/AP ratio. The relevance of glycerol test in identifying EH through detection of hearing changes needs further investigation in the future.
Source: Otology and Neurotology - Category: ENT & OMF Tags: Vestibular Disorders Source Type: research
Abstract Loud noise frequently results in hyperacusis or hearing loss (i.e., increased or decreased sensitivity to sound). These conditions are often accompanied by tinnitus (ringing in the ears) and changes in spontaneous neuronal activity (SNA). The ability to differentiate the contributions of hyperacusis and hearing loss to neural correlates of tinnitus has yet to be achieved. Towards this purpose, we used a combination of behavior, electrophysiology, and imaging tools to investigate two models of noise-induced tinnitus (either with temporary hearing loss or with permanent hearing loss). Manganese (Mn2+) uptak...
Source: Brain Structure and Function - Category: Neuroscience Authors: Tags: Brain Struct Funct Source Type: research
Abstract Langguth et al. (2006) described a method for targeting primary auditory cortex (PAC) during transcranial magnetic stimulation (TMS) using the 10-20 electroencephalography system. Study aims were to measure the degree of accuracy in placing the TMS coil on the scalp overlying PAC using the 10-20 method and determine the extent to which accuracy depends on the hemisphere of the coil placement. Twelve participants underwent anatomical magnetic resonance imaging (MRI) of their head in a 3T scanner. Before imaging, a fiducial marker was placed on their scalp corresponding to the TMS coil position. MRI scans w...
Source: Brain Topography - Category: Neuroscience Authors: Tags: Brain Topogr Source Type: research
Conclusion: The ELH was progressive in the long-term course of the disease in this large population of definite MD patients, but short-term and middle-term fluctuations of the symptom severity did not involve measurable variations of the ELH. Furthermore, the symptom severity did not decrease with increasing disease duration.
Source: Otology and Neurotology - Category: ENT & OMF Tags: Vestibular Disorders Source Type: research
Conclusions: The associations between auditory-related networks are weakened in tinnitus patients, even if they have normal hearing. It is possible that rs-fMRI can be a tool for objective examination of tinnitus, by focusing the auditory-related areas.
Source: Otology and Neurotology - Category: ENT & OMF Tags: Audiology Source Type: research
In conclusion, taVNS at acupoints CO10-12, TF4 could activate the prefrontal, auditory and limbic cortices of healthy brain and this scheme could be a promising tool for tinnitus treatment. PMID: 29305037 [PubMed - as supplied by publisher]
Source: Hearing Research - Category: Audiology Authors: Tags: Hear Res Source Type: research
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