fMRI brain scans reveal semantic tuning during both reading and listening to words are highly correlated in selective areas of the cerebral cortex. The new brain maps enabled researchers to accurately predict which words would active specific regions of the cortex.
Sleep disruptions during middle age may be a potential biomarker for developing Alzheimer's disease later in life. Researchers found those who experienced sleep problems in their 40s and 50s had more amyloid beta accumulation in their brains later in life. Those whose sleep problems started in their 50s and 60s had increased levels of tau. Additionally, higher levels of tau were discovered in the brains of those who lacked synchronized brain waves associated with a good night's sleep.
Obtaining new information may be addictive. Study finds information acquisition shares the same dopamine producing reward system pathway as food, financial rewards and drugs.
Learning is best predicted by both curiosity and an objective measure of knowledge. Researchers suggest it is uncertainty, or when you think you know something then discover you don't, that leads to curiosity and learning outcomes.
Gene therapy that targets retinal ganglion cells with light-sensitive cone opsins helps restore vision in mice. Researchers report a potential human treatment could be available within three years.
A new study challenges the long held theory that neurons in the brains of those with autism receive too little inhibition or too much excitation. Researchers report inhibition does not actually decrease in the brains of mice with ASD. Instead, researchers say, the altered balance may be a compensatory mechanism that helps to stabilize brain activity in response to the disorder.
Researchers have developed a new wireless brain stimulation device that could revolutionize the way neurological disorders are treated. The device, called WAND, fine tunes treatments by stimulating and recording electrical currents in the brain at the same time.
Researchers shed light on the dual nature of dopamine, as a neurotransmitter that makes us seek pleasure and also reinforces avoidance of pain.