April 2020 EurekAlert

When sensory perception fades

The researchers studied the brain of mice that exhibit hereditary hearing loss, similar to age related hearing loss in humans. The scientists analysed the density of neurotransmitter receptors in the brain that are crucial for memory formation. They also researched the extent to which information storage in the brain's most important memory organ, the hippocampus, was affected.

Adaptability of the brain suffers

Memory is enabled by a process called synaptic plasticity. In the hippocampus, synaptic plasticity was chronically impaired by progressive hearing loss. The distribution and density of neurotransmitter receptors in sensory and memory regions of the brain also changed constantly. The stronger the hearing impairment, the poorer were both synaptic plasticity and memory ability.

"Our results provide new insights into the putative cause of the relationship between cognitive decline and age-related hearing loss in humans," said Denise Manahan-Vaughan. "We believe that the constant changes in neurotransmitter receptor expression caused by progressive hearing loss create shifting sands at the level of sensory information processing that prevent the hippocampus from working effectively", she adds.

Become a Member

Become a Cicada member
For only A$10 for life, you will receive a copy of Buzz magazine and can attend events.

Latest News

Vinaora Visitors Counter

073728
Today
Yesterday
This Week
Last Week
This Month
Last Month
All days
2028
3330
2028
38298
73728
0
73728

Your IP: 213.239.216.194
17-01-2021 14:07

Deafblindness

Here is a link to Deafblindness support and information.
They are based in Western Australia and supported by Senses Australia.

Hear For You logo

 

 

 

Hear For You web site

Vision Statement: “For all young people who are deaf to reach their potential in life.”

Go to top
JSN Boot template designed by JoomlaShine.com
Web Analytics