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Phantom percepts: Tinnitus and pain as persisting aversive memory networks [Perspectives]

Doctor — Sun, 22 May 2011 20:54:44 +0000

Phantom perception refers to the conscious awareness of a percept in the absence of an external stimulus. On the basis of basic neuroscience on perception and clinical research in phantom pain and phantom sound, we propose a working model for their origin. Sensory deafferentation results in high-frequency, gamma band, synchronized neuronal activity in the sensory cortex. This activity becomes a conscious percept only if it is connected to larger coactivated â(self-)awarenessâ and âsalienceâ brain networks. Through the involvement of learning mechanisms, the phantom percept becomes associated to distress, which in turn is reflected by a simultaneously coactivated nonspecific distress network consisting of the anterior cingulate cortex, anterior insula, and amygdala. Memory mechanism…
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Pathways to the Cause of Tinnitus

Doctor — Thu, 19 May 2011 12:45:39 +0000

Researchers say they have found a biological explanation for tinnitus, a phantom ringing sound in the ears that affects up to 20% of the general population. (Source: WSJ.com: Health)

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Mice with behavioral evidence of tinnitus exhibit dorsal cochlear nucleus hyperactivity because of decreased GABAergic inhibition [Neuroscience]

Doctor — Fri, 06 May 2011 04:46:43 +0000

Tinnitus has been associated with increased spontaneous and evoked activity, increased neural synchrony, and reorganization of tonotopic maps of auditory nuclei. However, the neurotransmitter systems mediating these changes are poorly understood. Here, we developed an in vitro assay that allows us to evaluate the roles of excitation and inhibition in determining the neural correlates of tinnitus. To measure the magnitude and spatial spread of evoked circuit activity, we used flavoprotein autofluorescence (FA) imaging, a metabolic indicator of neuronal activity. We measured FA responses after electrical stimulation of glutamatergic axons in slices containing the dorsal cochlear nucleus, an auditory brainstem nucleus hypothesized to be crucial in the triggering and modulation of tinnitus. FA…

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TINNITUS CONTROL (Arnica Montana, Chininum Sulphuricum, Ferrum Metallicum, Kali Phosphoricum, Natrum Sulphuricum, Pulsatilla, Silicea, Thiosinaminum,) Spray [Liddell Laboratories, Inc.]

Doctor — Mon, 02 May 2011 21:34:51 +0000

Updated Date: Apr 28, 2011 EST (Source: DailyMed Drug Label Updates for the last seven days (since May 20, 2007 EST))
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The Impact of Cochlear Implantation on Tinnitus, Stress and Quality of Life in Postlingually Deafened Patients

Doctor — Fri, 29 Apr 2011 12:51:28 +0000

Audiol Neurotol 2012;17:2â11 (DOI:10.1159/000323847) (Source: Karger Publishers)

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Signs and symptoms of temporomandibular disorders and the incidence of tinnitus

Doctor — Tue, 26 Apr 2011 04:46:02 +0000

Summaryâ In a crossâsectional analysis of data from the Study of Health in Pomerania (SHIP 0), temporomandibular disorders (TMD) were the strongest predictors for tinnitus beside headache. The aim of this study was to investigate whether signs and symptoms of TMD can be identified as risk factors for developing tinnitus. The SHIP 1 is a populationâbased 5âyear longitudinal study intended to systematically describe the prevalence of and risk factors for diseases common in the population of Pomerania in northern Germany. A total of 3300 subjects (76% response) were reevaluated after 5âyears for tinnitus and signs and symptoms of TMD using the same questionnaires and examination tools as baseline. To estimate the relative risk (RR) appropriately, a modified Poisson regression was us…

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Tinnitus Caused By Too Little Inhibition Of Brain Auditory Circuits, Pitt-Led Study Says

Doctor — Fri, 22 Apr 2011 20:49:00 +0000

Tinnitus, a relentless and often life-changing ringing in the ears known to disable soldiers exposed to blasts, unwary listeners of too-loud music and millions of others, is the result of under-inhibition of key neural pathways in the brain’s auditory center, according to scientists at the University of Pittsburgh School of Medicine in this week’s early online edition of the Proceedings of the National Academy of Sciences… (Source: Health News from Medical News Today)

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[Case Report] Myxoma, dyspnoea, tinnitus, scoliosis, and alopecia

Doctor — Sat, 16 Apr 2011 04:49:13 +0000

In June, 2009, a 51-year-old woman presented to us with progressive dyspnoea on exertion, pulsatile tinnitus, back pain, and hair loss. Dyspnoea had started at least 1 year previously. During this time her exercise tolerance had decreased from an active lifestyle to the inability to climb stairs. 2 months before presentation, she started to have intrusive, pulse-synchronous tinnitus in her left ear only. Hair loss had started 2 years ago, and she had taken to wearing a wig. She admitted to back pain. (Source: LANCET)

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Russell Grant on tinnitus: I thought I had a noisy neighbour

Doctor — Wed, 13 Apr 2011 03:19:35 +0000

Tinnitus — an irritating ringing, hissing, whistling, roaring or thumping sound in the ears, with no external source — affects around seven million Britons at some point in their lives. (Source: the Mail online | Health)

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TINNITUS (Calcarea Carbonica, Carbo Vegetabilis, Chininum Sulphuricum, Cimicifuga Racemosa, Cinchona Officinalis, Coffea Cruda, Graphites, Kali Carbonicum,) Capsule [Apotheca Company]

Doctor — Wed, 06 Apr 2011 04:48:16 +0000

Updated Date: Mar 31, 2011 EST (Source: DailyMed Drug Label Updates for the last seven days (since May 20, 2007 EST))
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Tinnitus Relief » Tinnitus

Phantom percepts: Tinnitus and pain as persisting aversive memory networks [Perspectives]

Related Posts:

Pathways to the Cause of Tinnitus

Related Posts:

Mice with behavioral evidence of tinnitus exhibit dorsal cochlear nucleus hyperactivity because of decreased GABAergic inhibition [Neuroscience]

Related Posts:

TINNITUS CONTROL (Arnica Montana, Chininum Sulphuricum, Ferrum Metallicum, Kali Phosphoricum, Natrum Sulphuricum, Pulsatilla, Silicea, Thiosinaminum,) Spray [Liddell Laboratories, Inc.]

Related Posts:

The Impact of Cochlear Implantation on Tinnitus, Stress and Quality of Life in Postlingually Deafened Patients

Related Posts:

Signs and symptoms of temporomandibular disorders and the incidence of tinnitus

Related Posts:

Tinnitus Caused By Too Little Inhibition Of Brain Auditory Circuits, Pitt-Led Study Says

Related Posts:

[Case Report] Myxoma, dyspnoea, tinnitus, scoliosis, and alopecia

Related Posts:

Russell Grant on tinnitus: I thought I had a noisy neighbour

Related Posts:

TINNITUS (Calcarea Carbonica, Carbo Vegetabilis, Chininum Sulphuricum, Cimicifuga Racemosa, Cinchona Officinalis, Coffea Cruda, Graphites, Kali Carbonicum,) Capsule [Apotheca Company]

Related Posts: