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Neuroscientists at the University of Alberta have identified a mechanism that may help build memories during deep sleep. In a study published last month in eNeuro, the researchers focused on the role of the nucleus reuniens, an area of the brain that connects two other brain structures involved in creating memories and may co-ordinate their activity during slow-wave sleep. “Slow […]
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Nagoya City University (NCU) researchers have revealed an interaction between cortico-brainstem pathways during training-induced recovery in stroke model rats, providing valuable insights for improving rehabilitation methods. Upper limb hemiparesis often occurs after ischemic or hemorrhagic stroke. Unilateral upper extremity impairment can substantially disturb patients’ ability to complete activities of daily living. Therefore, continuous improvement of rehabilitation methods is needed to […]
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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. It’s a direct connection from the motor cortex of the brain to the auditory cortex that says essentially, “we’re running now, pay no attention to the sound of my footsteps.” […]
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Social behavior in mouse models of autism spectrum disorder normalized when investigators triggered the release of a specific signaling substance, serotonin, in a single part of the animals’ brains, according to a study from the Stanford University School of Medicine. “This points to a previously understudied brain mechanism that contributes to an inability to derive pleasure from social interactions,” said […]
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Neuroscientists at Cold Spring Harbor Laboratory (CSHL) have identified a neural circuit in the amygdala, the brain’s seat of emotion processing, that gives rise to anxiety. Their insight has revealed the critical role of a molecule called dynorphin, which could serve as a target for treatment of anxiety-related disorders including post-traumatic stress disorder (PTSD). Though they are distinct, fear and […]
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