Why is Tinnitus so annoying?
Journal Title: Biomedical Journal of Scientific & Technical Research (BJSTR) - Year 2017, Vol 1, Issue 4
Abstract
Animals have their hearing as a warning system for the first line of defence, which raises the alert. In humans, except from the basic innate “animal” reactions, we have our thoughts and feelings, with our sentiments and communication between people predominating. There is a short interval between the detection of sound by the cochlea and the perception of sound by the auditory cortex. However, during this time many types of interactions take place. A quarter of a second is a long time for a fast computer, but for our brains as well. Humans not only hear the sound, but can also be affected both physically and emotionally in many ways. There is no human being who has not felt the pleasant, striking feeling on his back at the sound of a charming music. We do not fully know the connections and interactions between the auditory tract and other parts of the brain. The way we operate is even less understood. Suffice it to say that abnormal electrical activity at any point from the cochlea up to close to the auditory cortex can have many different effects between them. The changes in electrical activity occurring for any reason on the acoustic path are perceived by the brain as sound, even though there is no new sound in the environment. The auditory cortex “does not recognize” that this activity is not external. It just processes it as sound. Similarly, the brain stem does not know that this new electrical activity is not a threat; it simply reacts as if it were a threat. Compare this to what would happen if someone were to hit you in the eye: besides the pain, you would almost certainly see a glow. They wouldn’t have shined a light on the eye, but the difference in electrical activity in the visual system is perceived by the visual cortex as “light”. In classic migraine, where the blood flow in the visual cortex is impaired, the flashes are common experience.
Authors and Affiliations
Constantinos Avraamides
Keywords
Related Articles
- EP ID EP570990
- DOI 10.26717/BJSTR.2017.01.000375
- Views 196
- Downloads 0
Investigation of Different Materials as Acetone Sensors for Application in Type-1 Diabetes Diagnosis
Diabetes, one of the most rapidly-growing chronic diseases in the world, is overall relative expensive on both diagnosis and monitoring. Breath acetone has proven to be a biomarker of diabetes which is a met...
A Cross-Sectional Study on the Knowledge, Attitude and Practice of Folic Acid Supplement Status in Women of Childbearing Age in Dongguan City
Objective: To understand the knowledge, attitude and practice (KAP) of folic acid supplement status among women of childbearing age in Dongguan city so as to provide evidence for developing a strategy of health education...
Antidepressive Therapy in Myocardial Infarction, Prevents Recurrent Cardiovascular Events?
There is an endorsement from American Heart Association that depression should be considered a risk factor of heart disease and recommends its screening as part of routine practice. However, all experts do not agree due...
The Relationship of Blood Glucose and Blood Pressure In Age-Related Cataracts
Surgical correction of cataracts now has a high success rate and results in restored sight for affected patients. Researchers, however, continue to try and find ways to prevent or delay development of the condition. The...
Domination of gastric Complications Among Diabetic Patients
Up to 50% of patients with type 1 and 2 diabetes mellitus (DM) and suboptimal glycemic control have delayed gastric emptying (GE), which can be documented with scintigraphy, 13 C-breath tests, or a wireless motility caps...