Sentences with phrase «auditory cortex neurons»

Dennis Barbour, MD, PhD, associate professor of biomedical engineering in the School of Engineering & Applied Science who studies neurophysiology, found in an animal model that auditory cortex neurons may be encoding sounds differently than previously thought.

In the current study, researchers found to their surprise that most of the nerve cells in auditory cortex neurons that stimulate brain activity (excitatory) had signaled less (had «weaker» activity) when the mice expected and got a reward.

Not exact matches

The thinking goes that most cases of chronic tinnitus result from changes in the signals sent from the ear to neurons in the brain's auditory cortex.

Specialized sensory neurons in the inner ear, called hair cells, are responsible for the detection of sounds, and this information is transmitted to the auditory cortex via several intermediate structures.

Recording the electrical activity of neurons directly from the surface of the brain, the scientists found that for a simple task, such as repeating a word presented visually or aurally, the visual and auditory cortexes reacted first to perceive the word.

The team found that approximately five percent of the neurons in the higher auditory cortex reacted to the tutor song and that this could be indicative of where the early auditory memory is located in the brain.

Dr. Daniel Bendor, from University College London, describes a novel way that neurons in auditory cortex can encode temporal information, based on how their excitatory and inhibitory inputs get mixed together.

The researchers used a technique called magnetoencephalography, which detects the firing of neurons as changes in the brain's magnetic field, to monitor the responses of the auditory cortex to the tones.

It is thought to be caused by a reorganisation of the brain's auditory cortex, so too many neurons respond to particular sound frequencies.

Sur had severed the neurons connecting the eyes of newborn ferrets to the brain's visual cortex; then he reconnected those same neurons to the auditory cortex.

Finally, the researchers tested this circuitry in live animals, artificially turning on the motor neurons in anesthetized mice and then looking to see how the auditory cortex responded.

Sensory neurons, such as those in auditory cortex, on average respond relatively indiscriminately at the beginning of a new stimulus, but rapidly become much more selective.

Each nerve hair is tuned to a particular frequency of sound and excites only certain neurons in the auditory cortex.

As a result, the neurons in the auditory cortex form what is known as a tone map.

A fetus starts to hear at about 24 weeks of gestation, as neurons migrate to — and form connections in — the auditory cortex, a brain region that processes sound, Stromswold explains.

When the team blocked adenosine, they saw a rise in the number of neurons in the auditory cortex responding to sounds.