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In Black women, racial discrimination affects the microstructure of the brain, specifically within the anterior cingulum bundle and corpus callosum, and increases adverse mental health risks.
E-Mail Philadelphia, July 7, 2021 - Tourette syndrome, a neurodevelopmental disorder, causes motor and phonic "tics" or uncontrollable repeated behaviors and vocalizations. People affected by Tourette syndrome can often suppress these tics for some time before the urges become overwhelming, and researchers have long wondered at the neural underpinnings of the suppression effort. Now, in a new study using a non-invasive technique to measure brain activity called high-density electroencephalography (hdEEG), researchers at Yale School of Medicine have assessed the impact of tic suppression on ...
In a new study, researchers have examined how ''neighborhood disadvantage'' and how it can affect the developing brain, including the brain's connectivity between regions. The study appears in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging, published by Elsevier.
E-Mail Philadelphia, April 15, 2021 -A new study shows that markers of fear recall differ between men and women, but in a hormone-dependent manner. Aberrant fear-memory processing in the brain is thought to underlie anxiety disorders, which affect hundreds of millions of people worldwide. The neurobiological mechanisms underlying these disorders remain poorly understood, but recent studies suggest that neural oscillations in the prefrontal cortex can reflect the strength of fear recall activity, providing a physiological measure. Women suffer from anxiety disorders at twice the rate of men...
E-Mail Credit: Elsevier, 2021 Philadelphia, April 6, 2021 - Since the discovery of leptin in the 1990s, researchers have wondered, how does leptin, a hormone made by body fat, suppress appetite? Despite tremendous gains in the intervening three decades, many questions still remain. Now, a new study in mice describes novel neurocircuitry between midbrain structures that control feeding behaviors that are under modulatory control by leptin. The study appears in John Krystal, MD, Editor of Biological Psychiatry, said of the findings, "Omrani and colleagues shed light on how, in non-obese anim...