A new study in mice shows a link between the brain’s chemical system and the mice’s belief about how waiting will pay off. The effect of the neuromodulator serotonin on mice’s ability to stay patient when waiting for a reward is at the core of the study[1], by Dr. Katsuhiko Miyazaki and Dr. Kayoko Miyazaki… Read more

Attention-deficit hyperactivity disorder (ADHD) is a neurobiological disorder characterized by symptoms of hyperactivity, inattention and impulsivity. People with the condition are often prescribed a stimulant drug called methylphenidate, also known as Ritalin, which treats these symptoms. However, scientists do not fully understand how the drug works. Now, researchers at the Okinawa Institute of Science and… Read more

It’s the latest fad in Silicon Valley. By reducing the brain’s feel-good chemical known as dopamine – cutting back on things like food, sex, alcohol, social media and technology – followers believe that they can “reset” the brain to be more effective and appreciate simple things more easily. Some even go so far as avoiding… Read more

Cells in the somatosensory cortex also play a key role in reward learning, the sophisticated type of learning that allows the brain to associate an action with a pleasurable outcome, Columbia neuroscientists have found. The new study, involving mice, demonstrated that a simple brain region, known for processing basic sensory information, can also guide complex… Read more

Connections between neurons in brain systems associated with reward, stress, and emotion have been identified in a new study. Conducted in mice, the study may help untangle multiple psychiatric conditions, including alcohol use disorder, anxiety disorders, insomnia, and depression in humans. “Understanding these intricate brain systems will be critical for developing diagnostic and therapeutic tools… Read more