Cortical thickness and regional brain connectivity pay an equally important role in linking brain and behavior.
APOEe4, a gene associated with Alzheimer's disease risk, doesn't appear to directly affect memory performance or brain activity in older adults without cognitive impairment. However, the gene does seem to influence brain regions and systems that older at-risk adults activate to support successful memory recall.
The activity of a network of dopamine neurons reflects both the innate preferences for smell and taste, as well as the physiological state of fruit flies.
Examining the brains of frequent cannabis users, researchers have identified a pattern of connectivity related to craving the substance. The findings add weight to the idea that brain regions do not work in isolation, but via the connectivity of multiple networks that signal to each other depending on state and need. Brain connectivity during cannabis cravings is not static but has fluctuations in connection patterns between the central executive network and nucleus accumbens.
A new system for high-density EEG helps with the imaging of the origin and path of both normal and abnormal neural activity.
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A new machine-learning algorithm is more accurate at determining personality traits based on selfie photographs than humans are.
Machine learning algorithm allows a brain-computer interface to readjust itself continually in the background to ensure the system is always calibrated and ready to use.
A new machine learning model uses data from the COVID-19 pandemic in conjunction with a neural network and can determine the efficacy of social distancing measures and better predict viral spread. With current quarantine measures in place, the AI model predicts a plateau in coronavirus infections between April 15-20.
Dietary triglycerides directly alter signaling in the reward circuit to regulate behavior. The findings reveal a potential mechanism by which triglyceride-rich diets may lead to adaptions in dopamine signaling that underlie reward deficit and compulsive behaviors.