Neurons in the anterior intraparietal cortex learn to modulate their activity to compensate for errors in brain-machine interface tasks. Findings suggest the extent to which a person can learn a new skill is constrained by preexisting neural networks.
A new artificial neural network can assess a viewer's reaction to movies based on patterns of facial expressions. With enough information, researchers say the ANN will be able to assess how an audience is reacting to a movie and predict an individual's response based on a few minutes of observation.
Newly designed microbots can deliver vital drugs throughout the human body. The microbots can traverse the body and penetrate bodily mucus to efficiently deliver medications to target sites.
Auditory NeuroscienceFeaturedNeuroscienceNeuroscience VideosOpen Neuroscience ArticlesPsychologyVisual Neuroscience··6 min read
Researchers have developed two new illusions that shed light on how our senses can influence each other, specifically, how the presence of audio can influence visual illusions.
When a mouse senses a threat, neurons in the ventromedial hypothalamus become activated and remain active for ten seconds after the threat is removed. Fear responses could be induced by artificially stimulating these neurons. Artificially silencing the neurons reduced fear behavior.
Serotonin produced by the raphe is critical for sleep in both mice and zebrafish. The firing of neurons in the raphe and the release of serotonin may help the brain build up better sleep pressure. The results may explain why some sleep-related side effects of antidepressants increase serotonin in the brain.