Neuroscience

Brain has natural noise-cancelling circuit

To ensure that a mouse hears the sounds of an approaching cat better than it hears the sounds its own footsteps make, the mouse's brain has a built-in noise-cancelling circuit.

Neuroscience

Increased corticomotor excitability ID'd in restless legs

(HealthDay)—For patients with restless leg syndrome (RLS), the primary motor cortex (M1) exhibits hyperexcitability, which is associated with disease severity, according to a study published recently in Sleep Medicine.

Neuroscience

Motor control—how the brain responds to unexpected situations

Scientists have demonstrated that the motor cortex is necessary for the execution of corrective movements in response to unexpected changes of sensory input, but not when the same movements are executed spontaneously. Signatures ...

Neuroscience

Personalizing therapeutic brain stimulation

A study of epilepsy patients with implanted electrodes provides an unprecedented view of the changes in brain activity created by electrical stimulation. These findings, published in JNeurosci, have the potential to improve ...

Attention deficit disorders

Anomalous brain structure ID'd in preschoolers with ADHD

(HealthDay)—Anomalous brain development is evident among medication-naive preschoolers with attention-deficit/hyperactivity disorder (ADHD), according to a study published in the April issue of the Journal of the International ...

Neuroscience

Why does sleep become disrupted in old age?

The brain maintains its ability to generate local neural oscillations during sleep throughout the lifespan, according to a study of young and old mice published in JNeurosci. The research indicates that age-related disruptions ...

Neuroscience

Retraining the brain's vision center to take action

Neuroscientists have demonstrated the astounding flexibility of the brain by training neurons that normally process input from the eyes to develop new skills, in this case, to control a computer-generated tone.

Neuroscience

Mice, motor learning, and making decisions

Early understandings of the brain viewed it as a black box that takes sensory input and generates a motor response, with the in-between functioning of the brain as a mystery.

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