Divided on the basis of maternal education, children of more educated mothers have a lower level of background activity, a less noisy brain. These children also had more precise processing of sound ingredients that is learning to make effective connections between sound, and its meaning is likely to lead to a clearer signal and reduce the background neural activity so that effective and precise sound processing can take place.
Families of low socioeconomic status risk being exposed to a less Rich linguistic environment and tend to live in noisier neighborhoods. Maybe the background noise level of the brain becomes amped up from a long-term exposure to traffic and training noise, proximity to Industrial sites, and crowded housing. That track with lower income?
Support for this interpretation comes from animal experiments, in which noise exposure led to an increase in spontaneous brain noise, a sort of hyperactivity of the brain in the auditory midbrain and cortex. So, noise inside the brain can be caused by noise outside the brain. A higher Baseline level of internal noise is competing for headspace, with important sounds like speech.
A lifetime of noise exposure and linguistic understimulation in a vicious cycle can compromise the ability to make sense of sound. Tinnitus, the pronunciation of which even specialists cannot agree on. Is it tinnitus or tinnitus is another example of noise inside the head, most commonly expressed as ringing in the ears.
It can also be on his buzz or a hung. But the sound is not coming from an external Source. It is generated internally. Tinnitus can be temporary, such as after attending a loud concert, or it can be chronic, leading to stress, depression, fatigue, and trouble concentrating. Chronic tinnitus can occur for many reasons that are poorly understood and frankly unknown.
Awesome! Tinnitus is accompanied by hearing loss and hearing loss brought about by noise. In particular, is it Chief culprit? So, in tinnitus, we see a direct link between noise outside the head and noise inside the head. Even when there is hearing loss, the source of tinnitus is the brain tinnitus in ringing form, usually matches the frequency of the sufferer’s hearing loss.
If you have sustained a hearing, loss increased thresholds at 2,000 HZ. The ringing will occur around 2000 Hertz. This is an auditory analog of phantom limb syndrome, in which an amputee feels pain in their missing limb. It may be auditory neurons firing randomly, despite not getting input from the ear.
The auditory brain is always searching for stimulation. When sound is absent, the brain can make it up. Perhaps this is also why there is increased neural noise in children with linguistic deprivation? White noise.