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ScienceDaily: Mind & Brain News |
| Time until dementia symptoms appear can be estimated via brain scan Posted: 17 Sep 2021 09:20 AM PDT Researchers have developed an approach to estimating when a person who is at high risk of Alzheimer's dementia but has no cognitive symptoms will start showing signs of cognitive decline. The approach is based on data from a single brain scan, combined with the person's age. |
| Cutting-edge 3D facial scans could give genetic clues to autism Posted: 17 Sep 2021 06:54 AM PDT Researchers are using high-tech 3D facial scans to give us a better understanding of the genetic causes of autism. |
| Six stages of engagement in ADHD treatment revealed in new, diverse study Posted: 16 Sep 2021 02:34 PM PDT Six stages of engagement in treatment of Attention-Deficit/Hyperactivity Disorder (ADHD) have been reported by researchers based on a diverse study, inclusive of parents of predominantly racial and ethnic minority children with ADHD. |
| Witnessing abuse of sibling can lead to mental health issues Posted: 16 Sep 2021 02:34 PM PDT Researchers find that youth who witness the abuse of a brother or sister by a parent can be just as traumatized as those witnessing violence by a parent against another parent. Such exposure is associated with mental health issues like depression, anxiety and anger. |
| Posted: 16 Sep 2021 08:46 AM PDT Once a scent is detected, different areas of the brain are activated. A team has recently discovered that structures of the olfactory sense work closely together with the brain's reward and aversion systems. This means that scents are processed not only by the olfactory center but also by regions responsible for emotions and valence determination. |
| Likely cause of Alzheimer’s disease identified Posted: 15 Sep 2021 01:13 PM PDT Ground-breaking new research has discovered a likely cause of Alzheimer's disease, in a significant finding that offers potential new prevention and treatment opportunities. |
| New microscopy technique reveals activity of one million neurons across the mouse brain Posted: 15 Sep 2021 10:51 AM PDT Using light beads microscopy, researchers can now capture images of a vast number of cells across different depths in the brain at high speed, with unprecedented clarity. |
| Do doctors treat pain differently based on their patients’ race? Posted: 15 Sep 2021 08:09 AM PDT Physicians prescribed opioids more often to their white patients who complained of new-onset low back pain than to their Black, Asian and Hispanic patients during the early days of the national opioid crisis, when prescriptions for these powerful painkillers were surging but their dangers were not fully apparent, a new study has found. |
| Posted: 15 Sep 2021 05:58 AM PDT A new study investigates subthreshold depression, a more severe form of depression that includes not only sad mood, but also some of the other symptoms of depression, and reports that psychological interventions may have a modest, but significant effect on the treatment of this type of depression in adolescents. |
| How the brain accounts for uncertainties in motor planning Posted: 14 Sep 2021 12:24 PM PDT Major league baseball players must decide whether and how to swing at a pitch based only on the first 10 to 20 percent of the ball's flight when there is still a lot of uncertainty about the pitch's speed and trajectory. How do they do it? New research finds that when confronted with uncertainty, humans generate a single motor plan that optimizes task performance. The research resolves a long-standing question about how the brain selects an action to execute when there is uncertainty about its ultimate goal, providing fundamental insight into motor planning in the nervous system. |
| BCL11A: Evidence for neuroprotective effect Posted: 14 Sep 2021 09:49 AM PDT The neurotransmitter dopamine influences the activity of a wide variety of brain areas. A deficiency of this substance can have drastic consequences: The death of dopamine-producing nerve cells in the substantia nigra - a particularly sensitive part of the brain - is what causes the core symptoms of Parkinson's disease. An international team has now investigated the role played by the transcription factor BCL11A in mice and human cells. If this important factor is missing, the neurons are even more sensitive and more likely to die. The researchers suspect that BCL11A plays a protective role for neurons. |
| Contrary to expectations, study finds primate neurons have fewer synapses than mice in visual cortex Posted: 14 Sep 2021 08:12 AM PDT A study analyzing over 15,000 individual synapses in macaques and mice found that primate neurons have two to five times fewer synapses in the visual cortex compared to mice -- and the difference may be due to the metabolic cost of maintaining synapses. |
| Research discovery identifies cause of neonatal strokes Posted: 14 Sep 2021 08:03 AM PDT Scientists have discovered an important cause of stroke occurring in the womb or just after birth, paving the way for new treatments. The research identified that a low number of platelets (small blood cells known for enabling clotting) in babies, either in the womb or in newborns, could cause bleeding in the brain. These types of bleeds can lead to fatal strokes or permanent neurological conditions, such as cerebral palsy. |
| Using visual information to learn voluntary behavior while blind Posted: 14 Sep 2021 08:03 AM PDT A new study suggests that even if monkeys do not realize they have received a visual signal, they still change their behavior using it. |
| Posted: 08 Sep 2021 03:06 PM PDT Researchers have made a breakthrough discovery that could pave the way for the development of novel non-opioid painkillers (analgesics) to safely and effectively treat neuropathic pain. |
| Cats less stressed after adoption by families with children with autism, study finds Posted: 08 Sep 2021 03:06 PM PDT While researchers have found that adding a shelter cat to the family can help lower stress and anxiety for children with autism, a new study shows that joining a family does wonders for the felines, too. |
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