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Categories: Psychology Research

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A brain circuit inhibits food intake during nausea.

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New research has highlighted the profound link between dietary choices and brain health.

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Using state-of-the-art microscopy techniques, researchers have shed new light on the underlying mechanisms driving Alzheimer's disease.

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Bursts of brain rhythms with 'beta' frequencies control where and when neurons in the cortex process sensory information and plan responses. Studying these bursts would improve understanding of cognition and clinical disorders, researchers argue in a new review.

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When epileptic patients suffer seizures, their brain is undergoing repetitive and excessive neuronal firing. But what triggers this has stumped scientists for years. Now, researchers have used fluorescence calcium sensors to track astrocytes' role in epileptic seizures, finding that that astrocyte activity starts approximately 20 seconds before the onset of epileptic neuronal hyperactivity.

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A sensitive perception of the environment is crucial for guiding our behavior. However, an overly sensitive response of the brain's neural circuits to stimuli can lead to neurodevelopmental disorders such as epilepsy. Researchers now report how neuronal networks in the mouse brain are fine-tuned.

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In posttraumatic stress disorder (PTSD), intrusive thoughts, changes in mood, and other symptoms after exposure to trauma can greatly impact a person's quality of life. About 6 percent of people who experience trauma develop the disorder, but scientists don't yet understand the neurobiology underlying PTSD. Now, a new genetic study of more than 1.2 million people has pinpointed 95 loci, or locations in the genome, that are associated with risk of developing PTSD, including 80 that had not been previously identified.

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Thought emerges and is controlled in the brain via the rhythmically and spatially coordinated activity of millions of neurons, scientists argue in a new article. Understanding cognition and its disorders requires studying it at that level.

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Scientists created four cannabis-derived CBN analogs (chemical look-a-likes) with enhanced neuroprotective properties and potential for therapeutic application in neurological disorders like Alzheimer's, Parkinson's, and traumatic brain injury. Their findings reveal novel aspects of CBN's neuroprotective activity and demonstrate the clinical potential of CBN and value of studying its analogs.

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Investigators have discovered how brain cells responsible for working memory -- the type required to remember a phone number long enough to dial it -- coordinate intentional focus and short-term storage of information.

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A research team reports that social stress during adolescence in female mice later results in prolonged elevation of the hormone cortisol after they give birth.

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A new study offers a first look into the complex molecular changes that occur in brain cells with Lewy bodies, which are key pathological hallmarks of Parkinson's disease and some dementias. The findings reveal that brain cells with Lewy bodies exhibit a specific gene expression pattern akin to a disease-related fingerprint.

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A study on the effects of a junk food diet on rats reinforces scientific understanding about the gut-brain connection.

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Researchers have discovered that an FDA-approved epilepsy drug can prevent or slow the growth of NF1-linked optic gliomas in mice, laying the groundwork for a clinical trial.

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Over a ten-year period, biobank participants who met recommended levels of physical activity had a 23% lower risk of cardiovascular disease, and the protective effects were even more pronounced in individuals with depression.

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Engineers have developed the smallest implantable brain stimulator demonstrated in a human patient that could revolutionize treatment for drug-resistant depression and other psychiatric or neurological disorders.

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When the brain has trouble filtering incoming information and predicting what's likely to happen, psychosis can result, research shows.

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Researchers conducted a survey to understand how the mental health of displaced Ukrainians has been affected by the ongoing war. Their findings describe high levels of post-traumatic stress disorder (PTSD) and generalized anxiety among both refugees and people displaced within Ukraine.

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Researchers have discovered the neural circuitry in the spinal cord that allows brain-independent motor learning. The study found two critical groups of spinal cord neurons, one necessary for new adaptive learning, and another for recalling adaptations once they have been learned. The findings could help scientists develop ways to assist motor recovery after spinal cord injury.

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Childhood maltreatment can continue to have an impact long into adulthood because of how it effects an individual's risk of poor physical health and traumatic experiences many years later, a new study has found.