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ScienceDaily: Mind & Brain News |
| International study links brain thinning to psychosis Posted: 05 May 2021 08:37 AM PDT Subtle differences in the shape of the brain that are present in adolescence are associated with the development of psychosis, according to an international team. The 'sobering' results were made using the largest study to date of brain scans in adolescents at risk for psychosis. |
| Novel CBD analog shows promising pain-halting effects in mice Posted: 05 May 2021 08:13 AM PDT Studies have shown that while CBD reduces pain sensation in animals, its ability to do so in humans is limited by low bioavailability, the extent to which the drug successfully reaches its site of action. Now, new research suggests this obstacle may be overcome by a novel CBD analog known as KLS-13019. |
| Restricting growth, spread of head and neck cancers Posted: 05 May 2021 06:44 AM PDT Researchers have discovered a key molecule that allows cancer stem cells to bypass the body's natural immune defenses, spurring the growth and spread of head and neck squamous cell cancers. Their study, conducted in mice, also demonstrates that inhibiting this molecule derails cancer progression and helps eliminate these stem cells. |
| When algorithms go bad: How consumers respond Posted: 05 May 2021 04:50 AM PDT Consumers are less forgiving of brand failures when algorithms are anthropomorphized, use machine learning, or are used for subjective or interactive tasks. |
| How accurate are virtual assessments of cognitive function? Posted: 05 May 2021 04:48 AM PDT A new analysis examines the accuracy and reliability of virtual compared with in-person cognitive assessments for diagnosing dementia or mild cognitive impairment. |
| New study deconstructs Dunbar's number (number of friends) Posted: 04 May 2021 06:10 PM PDT An individual human can maintain stable social relationships with about 150 people, not more. This is the proposition known as 'Dunbar's number' - that the architecture of the human brain sets an upper limit on our social lives. A new study indicates that a cognitive limit on human group sizes cannot be derived in this manner. |
| Gene therapy in Alzheimer's disease mouse model preserves learning and memory Posted: 04 May 2021 04:16 PM PDT Researchers have used gene therapy to prevent learning and memory loss in a mouse model of Alzheimer's disease, a key step toward eventually testing the approach in humans with the neurodegenerative disease. |
| Neighborhood disadvantage may be an environmental risk factor for brain development Posted: 04 May 2021 04:14 PM PDT A new study suggests that certain neighborhoods - particularly those characterized by poverty and unemployment - may pose an environmental risk to the developing brains of children, impacting neurocognitive performance and even brain size. |
| Chronic exposure to low levels of blast may be associated with neurotrauma Posted: 04 May 2021 08:26 AM PDT Scientists demonstrated that TBI biomarkers were elevated among law enforcement and military personnel, including those without a diagnosed brain injury or concussion, repeatedly exposed to low level blast. Repeated exposure have been linked to a series of reported symptoms such as headaches, fatigue, dizziness, memory difficulties, and tinnitus. Researchers hope these data are the first step to identifying objective biomarkers as clinically relevant diagnostic tools. |
| Circadian rhythm research could turn early birds into night owls Posted: 04 May 2021 08:26 AM PDT Researchers have identified a set of genes, called clock genes, that control circadian rhythms. But a more complicated gene network than previously known appears related to these rhythms. Scientists detail a statistical model they are using to help identify the genes involved in this network. With help from other disciplines, they hope to fully understand how these genes work together to make different people more productive at different times of day. |
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