Woman covering her ears. Picture: AFP
TNA Reporter and Relaxnews
While having the tune of a song ringing in your ear for a short period of time may be normal, hearing unmelodious sounds drumming loudly like a live band in your ear may require medical attention.
This was the case with Tina Lannin, 42, who has been hearing choirs singing Christmas carols and rock n roll music in her ears for over 30 years.
"It’s as if the choir is in the room with you and you having no means of making them stop," Lannin said.
"One night, I was kept awake by what sounded like a drunken choir singing ‘Away in a Manger'. Sometimes it was a rock concert, and sometimes classical music or opera.”
"At times there were singers, and at other times, just instruments. But it never sounded right,” she said.
According to Daily Mail, this condition is a form of Tinnutis, where people usually hear buzzing, ringing or whistling noises in their ears.
The condition, which 90% of the time may be due to hearing loss may also suggest damage to a part of the brain, which processes sound.
"We see people every week who report hearing phantom music, and it’s something that may be under-reported.
"This is because people are familiar with tinnitus as banging or ringing, but when they hear music, they don’t think of tinnitus. Instead, they worry they are going mad."
Though some patients who suffer from the condition may think they are going mad, professor of cognitive neurology at Newcastle University, Tim Griffiths, suggests that brain scans prove that these ‘musical hallucinations’ make the brain react the same it would when you listen to actual music.
"If someone is deaf or loses their hearing, the part of the brain that processes sound signals is deprived of stimulation.
"In the absence of sound, the brain fills in the gaps, as it were, by turning to musical memory for stimulation," Griffiths was quoted by Daily Mail as saying.
'Rebooting' brain could ease ringing in ears
Scientists have found a way to ease chronic ringing in the ears, known as tinnitus, by stimulating a neck nerve and playing sounds to reboot the brain, according to research published last year.
There is currently no cure for tinnitus, which can range from annoying to debilitating and affects as many as 23 million adults in the United States, including one in 10 seniors and 40 percent of military veterans.
For Gloria Chepko, 66, who has suffered from tinnitus since she was four years old, the sound she describes as "like crickets but also bell-like," gets worse when she is tired.
"It's awful," she said. "Sometimes it is very loud, and it will get loud if I am under stress or if I have been going for a very long time and I am fatigued," she said.
"If my mind is tired and I sit down I will only hear this sound."
For some people, such as military veterans who are left with hearing damage after exposure to loud blasts and gunfire, the noise -- which could also sound like roaring, whooshing or clicking -- interferes with their ability to lead a normal life.
The US Veterans Administration spends one billion dollars per year on disability payments related to tinnitus, the most common service-related ailment in soldiers returning from Iraq and Afghanistan, industry experts say.
Scientists believe the disorder is caused by hearing loss or nerve damage, to which the brain tries but fails to adjust.
"Brain changes in response to nerve damage or cochlear trauma cause irregular neural activity believed to be responsible for many types of chronic pain and tinnitus," said Michael Kilgard of the University of Texas, co-author of the study in the journal Nature.
"We believe the part of the brain that processes sounds -- the auditory cortex -- delegates too many neurons to some frequencies, and things begin to go awry," he said.
To fix that, researchers used rats to test a theory that they could reset the brain by retraining it so that errant neurons return to their normal state.
In rats with tinnitus, they electrically stimulated the vagus nerve, which runs from the head through the neck to the abdomen, in combination with playing a certain high-pitched tone.
When stimulated, the nerve can encourage changes in the brain by releasing chemicals such as acetylcholine and norepinephrine that act as neurotransmitters.
Rats that underwent the pairing of noise and stimulation experienced a halt to the ringing sounds for up to three and a half months, while control rats that received just noise or just stimulation did not.
An examination of neural responses in the auditory cortexes showed normal levels in the rats who were treated with the combination of stimulation and sound, indicating the tinnitus had disappeared.
The treatment "not only reorganized the neurons to respond to their original frequencies, but it also made the brain responses sharper," the study said.
"The key is that, unlike previous treatments, we're not masking the tinnitus, we're not hiding the tinnitus," said Kilgard.
"We are returning the brain from a state where it generates tinnitus to a state that does not generate tinnitus. We are eliminating the source of the tinnitus."
Clinical trials are expected to begin on humans in the coming months, with the first trials starting in Europe, according to lead study author Navzer Engineer.
The process of vagus nerve stimulation, known as VNS, is already being used in the treatment of around 50,000 people with epilepsy or depression, the study said.
"This minimally invasive method of generating neural plasticity allows us to precisely manipulate brain circuits, which cannot be achieved with drugs," said Engineer.
"Pairing sounds with VNS provides that precision by rewiring damaged circuits and reversing the abnormal activity that generates the phantom sound."
Like many sufferers, Chepko has learned to cope with the noise.
"I have to find some other way to relax to just endure it, take a bath or do stretches or just lie down and stare or read a book, depending on how bad it is," she said.
"I have kind of lived around it, or over it."