New type of ‘extinction neuron’ in the brain may fight off fearful memories

Summary: Newly identified ‘extinction neurons’ in the hippocampus suppress fearful memories when activated, and allow the memories to return when deactivated. The findings may provide new treatment avenues for PTSD, phobias, and anxiety. Neuroscientists at The University of Texas at Austin have discovered a group of cells in the brain that are responsible when aContinue reading “New type of ‘extinction neuron’ in the brain may fight off fearful memories”

Neuroscientists Have Revealed What Your Brain Needs to Really Erase a Memory

by PETER DOCKRILL When bad things happen, we don’t want to remember. We try to block, resist, ignore – but we should perhaps be doing the opposite, researchers say. A new study led by scientists in Texas suggests the act of intentionally forgetting is linked to increased cerebral engagement with the unwanted information in question.Continue reading “Neuroscientists Have Revealed What Your Brain Needs to Really Erase a Memory”

Stanford scientists find fear, courage switches in brain

Pinpoint stimulation of a cluster of nerve cells in the brains of mice encouraged timid responses to a perceived threat, whereas stimulation of an adjacent cluster induced boldness and courage. Researchers at the Stanford University School of Medicine have identified two adjacent clusters of nerve cells in the brains of mice whose activity level uponContinue reading “Stanford scientists find fear, courage switches in brain”

Laboratory mouse studies suggest that long-term, low dose caffeine worsens anxiety and emotional and cognitive flexibility in people with Alzheimer’s disease, while providing only little benefit to learning and memory.

The study simulated long-term consumption of three cups of coffee a day. It is well known that memory problems are the hallmarks of Alzheimer’s disease. However, this dementia is also characterized by neuro-psychiatric symptoms, which may be strongly present already in the first stages of the disorder. Known as Behavioural and Psychological Symptoms of DementiaContinue reading “Laboratory mouse studies suggest that long-term, low dose caffeine worsens anxiety and emotional and cognitive flexibility in people with Alzheimer’s disease, while providing only little benefit to learning and memory.”

12 Qualities of Remarkably Courageous People

BY JEFF HADEN Courage isn’t just a willingness to confront pain or fear. Courage, like character, also involves doing the right thing when no one is watching… or will ever know what you’ve done. When you think of courage you may think of physical bravery, but there are many other forms of courage. After all,Continue reading “12 Qualities of Remarkably Courageous People”