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Today β€” 9 November 2024Main stream

Childhood Stress Disrupts Attention, Sleep, and Dopamine Balance in Adults

9 November 2024 at 15:06
This shows brains.New research links childhood adversity with later attention deficits, sleep disruptions, and specific dopamine imbalances in the brain. Focusing on critical developmental windows, scientists found that disrupted care early in life affected males more than females.
Before yesterdayMain stream

Childhood Attention Problems and Genes Linked to Psychosis Risk

28 October 2024 at 17:34
This shows a head and a brain.Childhood attention issues, coupled with genetic predispositions, increase the likelihood of experiencing psychotic-like symptoms in adolescence. By analyzing data from 10,000 youths, researchers discovered that variability in attention spans partially explains how genetic risk factors translate into psychotic-like symptoms.

Prenatal Cannabis Use Linked to Child Aggression and Cognitive Deficits

28 October 2024 at 17:16
This shows a pregnant woman.Prenatal exposure to cannabis can negatively impact children’s thinking and behavioral skills, including impulse control, attention, and aggression, which are key for academic and social success. The study observed preschool-aged children with prenatal cannabis exposure and found they showed poorer control over impulses and emotions.

Newborns’ Brains Recognize Complex Sound Patterns

25 October 2024 at 20:16
This shows a baby surrounded by musical notes.New research shows that newborns can detect complex sound patterns that follow non-adjacent, language-like rules, suggesting that the ability to process such sequences is innate. Using near-infrared spectroscopy, researchers observed newborn brain responses to sequences of tones, finding that infants could distinguish between correct and incorrect patterns. The study found that this early ability activates language-related networks, particularly in the left hemisphere, highlighting a foundation for future language skills.

In-Utero Gene Editing Could Halt Neurodevelopmental Disorders

24 October 2024 at 21:38
This shows a brain.A new study has developed a breakthrough biomedical tool that can deliver genetic material to edit faulty genes in fetal brain cells. Tested in mice, this technology offers the potential to stop the progression of neurodevelopmental conditions, like Angelman and Rett syndromes, before birth.

Stem Cell Mini-Brains Unlock Insights into Autism

24 October 2024 at 15:53
This shows a brain and DNA.Researchers have created "mini-brains" using stem cells from patients with a rare form of autism, allowing them to study brain development in detail. These organoids revealed how a genetic mutation in MEF2C disrupts the balance between excitatory and inhibitory neurons, leading to autism.

Infant Sleep Loss Linked to Brain Development Problems

24 October 2024 at 15:38
This shows an empty crib.New research shows that sleep deprivation during early development disrupts brain function, impacting neuron growth and synapse formation. The study found that young mice lacking sleep did not experience the β€œsleep rebound” seen in adults, leading to lasting deficits in social behavior and memory.

Cannabis Use Linked to Thinner Cortex in Adolescents

23 October 2024 at 21:59
This shows a brain.Cannabis use in adolescents may lead to thinning of the cerebral cortex, a key brain region for cognitive function. Researchers found that THC, the active ingredient in cannabis, causes the shrinking of dendrites, which are crucial for neuron communication.

Youth Face Rising Risks of Harassment and Exploitation in the Metaverse

23 October 2024 at 16:29
This shows cartoons of avatars.A new study reveals that youth are vulnerable to various forms of harm in the metaverse, including bullying, harassment, and sexual exploitation. Using data from over 5,000 U.S. teens, researchers found significant incidents of hate speech, sexual harassment, and grooming behavior in virtual reality (VR) spaces.

Removing Pre-Bed Screen Time Improves Toddler Sleep

23 October 2024 at 15:35
This shows a sleeping child.A world-first trial shows that eliminating screen time in the hour before bed significantly improves toddlers' sleep quality. The study involved 105 families and found that toddlers who replaced screen time with calming, non-screen activities slept more efficiently and woke up less during the night.

3D Brain Atlas Maps Key Stages of Brain Development

21 October 2024 at 22:19
This shows a brain.Researchers have created a 3D atlas of the developing mouse brain, offering a dynamic, high-resolution view of brain structures during embryonic and post-natal stages. This new tool allows scientists to explore how brain cells, such as GABAergic neurons linked to neurological disorders, emerge and interact during development.

Parent-Child Play Shapes Social Skills for Interacting with Peers

21 October 2024 at 21:06
This shows a mom and child playing.How parents and toddlers play together can predict children's future social interactions. By observing over 120 mother-child pairs, researchers found that responsive and assertive behaviors during play were linked to better social competence with peers.

Autism Risk in Males Linked to Y Chromosome

18 October 2024 at 20:45
This shows a brain.New research suggests that the Y chromosome may be responsible for the higher prevalence of autism in males, shifting focus away from protective factors on the X chromosome. Analyzing genetic data, researchers found that individuals with an additional Y chromosome were twice as likely to have an autism diagnosis, while an extra X chromosome had no effect on autism risk.

Folic Acid Reduces Lead’s Impact on Autism Risk

17 October 2024 at 23:21
This shows a pregnant woman and a brain.A study has shown that folic acid supplementation during pregnancy may reduce the link between maternal blood lead levels and autistic-like behaviors in children. By examining data from pregnant women and their toddlers, researchers found stronger associations between lead exposure and autism traits in cases of low folic acid intake.

Genetic Influences on Youth Behavior and Mental Health

17 October 2024 at 19:20
This shows two heads made out of DNA.Researchers have used an innovative approach to explore genetic links to mental health issues in youth, identifying associations with behaviors such as screen time and caffeine consumption. By focusing on polygenic scores that reflect genetic predispositions, the study highlights a range of potentially modifiable factors that may contribute to psychiatric risk.

Human-Specific Genes Reveal Link Between Brain Growth and Autism

14 October 2024 at 18:25
This shows DNA.Researchers have found a link between two human-specific genes and the gene SYNGAP1, a factor in intellectual disabilities and autism spectrum disorders. These genes, SRGAP2B and SRGAP2C, slow down synapse development, a hallmark of prolonged brain growth thought to enhance learning in humans. By turning off these genes in human neurons, scientists observed accelerated brain connectivity development, mimicking changes seen in certain neurodevelopmental conditions.

Motor Delays May Predict Genetic Disorders in Kids

14 October 2024 at 15:59
This shows a child playing with blocks.A recent study reveals that motor delays and low muscle tone are strong indicators of an underlying genetic diagnosis in children with neurodevelopmental disorders. Researchers reviewed patient records to identify early signs, finding that 75% of children with motor delays had genetic diagnoses. Early identification can enable families to seek genetic testing, potentially offering targeted treatments or monitoring for related medical issues.

Teen Friendships Shape Long-Term Wellbeing

13 October 2024 at 20:37
This shows a group of friends.New research reveals that teenage friendships lay crucial foundations for adult wellbeing, with the timing and nature of these friendships playing a pivotal role. Early adolescence social acceptance is linked to better adult mental health, while close friendships in later teens impact job satisfaction and romantic stability.

New Genetic Mutations Linked to Schizophrenia Risk

11 October 2024 at 22:14
This shows DNA.A study has identified mutations arising during brain development that may contribute to schizophrenia. Unlike inherited genes, these somatic mutations occur after conception and were found more frequently in schizophrenia patients' brain tissue. By sequencing DNA from neurons in the dorsolateral prefrontal cortex, researchers identified single-nucleotide variants linked to disrupted brain functions. This discovery highlights the importance of studying both inherited and non-inherited genetic factors.
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