Have you ever felt that any success you are having is random, and is only because of some external circumstances or just luck? You may have what is called imposter syndrome and you are not alone. People who systematically underestimate themselves and their own performance live in constant fear that their “deception” will be exposed. A new study1 shows for the first time that even under real-life conditions the phenomenon happens, and it happens regardless of age, gender, and intelligence.
In a group of older men, individuals having frequent bad dreams were twice as likely to be later diagnosed with Parkinson’s disease as those who did not, new research from University of Birmingham reports. Although it can be really beneficial to diagnose Parkinson’s disease early, there are very few risk indicators and many of these require expensive hospital tests or are very common and non-specific, such as diabetes, said Dr Abidemi Otaiku, of the University’s Centre for Human Brain Health, lead author of the study1.
Researchers at University of North Carolina School of Medicine have zeroed in on a specific kind of neuron in mice to increase the production of neural stem cells and spur on the creation of new adult neurons. Targeting these cells modulated memory retrieval and altered anxiety-like behaviors in mice, their study1 details. Targeting the hypothalamic neurons to enhance adult hippocampal neurogenesis will not only benefit brain functions, but also holds the potential to treat cognitive and affective deficits associated with various brain disorders,
Use of steroids and anti-inflammatory drugs for pain relief could raise the chances of developing chronic pain, new research from McGill University and colleagues in Italy suggests. The findings bring questions for conventional practices used to treat pain, of which chronic low back pain is the most commonly reported chronic pain condition. For many decades it’s been standard medical practice to treat pain with anti-inflammatory drugs. But we found that this short-term fix could lead to longer-term problems,
The striatum, a region of the forebrain, was on average 10% larger in psychopathic individuals compared to a control group of individuals that had low or no psychopathic traits, in a new study1. Previous studies have pointed to an overly active striatum in psychopaths but have not conclusively determined the impact of its size on behaviors. Our study’s results help advance our knowledge about what underlies antisocial behavior such as psychopathy.
Acute stress is associated with increased myelination of axons in areas of the brain associated with memory and emotions, recent research shows. The study1, from scientists at the University of California, Berkeley, and UC San Francisco (UCSF), represents a potential explanation for why some people are quick to recover from, and others vulnerable to traumatic stress, and for the varied symptoms - avoidance behavior, anxiety and fear, for example - triggered by the memory of such stress.
A previously unknown function of astrocytes brings a new approach for neuroscience researchers that could ultimately lead to treatments for disorders like epilepsy, Alzheimer’s, and traumatic brain injury, scientists report. Astrocytes are glial cells in the brain that communicate with neuronal synapses, cleaning up glutamate and potassium from the extracellular space after neuron activity. The electrical activity of astrocytes changes how neurons function. We have discovered a new way that two of the most important cells in the brain talk to each other.
Epilepsy seizures increase insulation of nerve fibers involved in seizing, leading the brain to have seizures more efficiently, a new study1 from the Stanford University School of Medicine has found. I was surprised by what we saw. Initially, I thought that because this is a disease process, we would see deficient myelination somehow. What we’re seeing is myelination in a pattern that favors seizure progression, said lead author Juliet Knowles, MD, Ph.