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developmental neuroscience

·December 19, 2024·4 min read

Notochord Guides Neural and Spinal Formation

Scientists have developed human stem cell models containing the notochord, a critical tissue that guides spine and nervous system formation during embryonic development. Using precise chemical signals inspired by natural processes in chicken, mouse, and monkey embryos, the researchers successfully coaxed human stem cells to form a notochord and a miniature trunk-like structure. This innovation mirrors key features of human development and could advance the study of spine-related birth defects and conditions like intervertebral disc degeneration.

Featured Neuroscience

·December 18, 2024·6 min read

Space Study Reveals Accelerated Growth of Human Brain Cells

Scientists sent stem-cell-derived brain organoids to the International Space Station (ISS) to study the effects of microgravity on brain development. After a month in orbit, the organoids remained healthy but displayed accelerated maturation and reduced replication compared to Earth-grown controls. Gene expression analysis revealed higher levels of genes linked to neuron maturity and lower levels of stress-related inflammation, challenging initial hypotheses.

Featured Neuroscience

·December 17, 2024·4 min read

Baby Babble Syncs With Heartbeats to Shape Speech Development

Infants' heart rate rhythms are closely linked to their early vocalizations, including coos, babbles, and emerging words. Researchers found that babies were most likely to produce sounds when their heart rate reached a peak or trough, with speech-like sounds occurring during heart rate deceleration.

Featured Neuroscience Psychology

·December 17, 2024·5 min read

Teen Brain’s Blunted Reward Response Predicts Depression Onset

A new study reveals that a reduced neural response to rewards in teens predicts the first onset of depression, but not anxiety or suicidality. Researchers used EEG scans to measure "reward positivity" in at-risk adolescents and found that those with blunted responses were more likely to develop depression.

Featured Genetics Neuroscience Psychology

·December 16, 2024·5 min read

Twin Dynamics: How Developmental Differences Shape Dominance Roles

A new study reveals that developmental differences strongly influence dominance roles in twin relationships, with typically developing twins perceived as dominant over their nontypically developing siblings. This dominance imbalance persists throughout childhood, even if developmental challenges improve.

Autism Featured Genetics Neuroscience

·December 16, 2024·6 min read

Protein Loss Triggers Molecular Changes Linked to Rett Syndrom

Researchers have uncovered how loss of the MeCP2 protein triggers early molecular changes leading to Rett syndrome, a severe neurological disorder. By studying adult mice, they demonstrated that MeCP2 loss disrupts gene expression well before measurable neurological deficits arise.

Featured Neuroscience Psychology

·December 10, 2024·6 min read

Brain Markers Reveal Teens at Risk for Gaming Addiction

New research reveals brain activity patterns that may predict gaming addiction in teens. A study of adolescents aged 10-15 found reduced activity in brain regions linked to decision-making and reward processing in those developing gaming addiction symptoms over four years.

Autism Featured Neuroscience

·December 9, 2024·6 min read

Why Autistic Children View Faces Differently

Children with autism exhibit distinct eye movement patterns when viewing faces, particularly in the initial stages of visual processing. A new study found that autistic children are more likely to use an exploratory eye movement pattern, focusing on broader areas rather than immediately fixating on facial features. This behavior may be linked to reduced visual sensitivity to social cues and is associated with autism-related challenges in social communication.

Featured Neuroscience

·December 9, 2024·5 min read

Fetal Immunity Defends the Brain Before Birth

New research reveals that fetuses can mount immune responses against infections long before birth, challenging the assumption that they rely solely on maternal immunity. A study on Zika virus infections found that immune cells like microglia protect the developing brain, while others, like monocytes, can cause damaging inflammation.

Featured Neuroscience Psychology

·December 7, 2024·4 min read

Why Your Child Keeps Rewatching That Show (and Why It’s Good)

Children’s love for repeating shows, books, or activities is more than a quirk—it supports learning and emotional wellbeing. Cognitive science reveals that repetition helps kids detect patterns, a process critical for language and cognitive development.

Autism Featured Genetics Neuroscience Psychology

·December 5, 2024·6 min read

Gene Defect Linked Brain Size and Social Behavior in ASD, Schizophrenia

A new study reveals how genetic deficits, particularly in the Tbx1 gene, are linked to reduced brain volume and altered social behavior, findings relevant to autism and schizophrenia. Researchers observed smaller amygdala volumes in Tbx1-deficient mice, a brain region key to emotional regulation and social behavior. These mice displayed less interest in social interaction, relying more on non-social cues like bedding preferences.

Autism Featured Genetics Neuroscience

·December 5, 2024·7 min read

Missing Genetic Link Uncovered in Idiopathic Autism

Researchers have uncovered a molecular mechanism linking alterations in the neuronal protein CPEB4 to idiopathic autism, which accounts for 80% of autism cases without a clear genetic cause. The study reveals that the absence of a specific microexon in CPEB4 disrupts the dynamics of molecular condensates in neurons, affecting the regulation of genes crucial for brain development. This disruption can lead to reduced protein production, impairing neuronal growth and function.