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Autism spectrum disorders linked to neurotransmitter switching in the brain

Researchers at University of California - San Diego have discovered a link between environmentally induced autism and altered neurotransmitter expression in the brain. The study suggests that manipulating these neurotransmitters early in development can prevent autistic-like behaviors.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateAug 22, 2024

British media needs to change negative portrayals of autism

A study published in Autism in Adulthood found that British newspapers often portray autistic people negatively and stereotypically. The researchers analyzed sentiments towards autism and autistic people in 1,000 quotes from newspapers between 2011 and 2020 and found that identity-first language was linked to more positive sentiments.

SourceCity St George’s, University of London·JournalAutism in Adulthood·TypeLiterature review·DateAug 22, 2024

Brain enlargement is linked to severe symptoms of autism spectrum disorder, study shows

A study of over 900 children with autism spectrum disorder found that brain overgrowth is associated with increased social and communication symptoms. The research used MRI brain images and mini-brain experiments to show that enlarged brains are linked to altered Ndel1 enzyme activity, potentially affecting brain development.

AI model aids early detection of autism

A new AI model developed by Karolinska Institutet can predict autism in young children with an accuracy of almost 80% for those under two years old. The model uses a combination of limited information to identify patterns and strong predictors of autism, such as age of first smile and eating difficulties.

SourceKarolinska Institutet·JournalJAMA Network Open·DateAug 19, 2024

Knocking out one key gene leads to autistic traits

A recent study discovered that knocking out a key gene, ASTN2, in mice results in changes to cerebellar structure and behavior. The knockout mice exhibited reduced socialization and communication, increased hyperactivity and repetitive behavior, similar to hallmark traits of autism spectrum disorder.

SourceRockefeller University·JournalProceedings of the National Academy of Sciences·DateAug 16, 2024

New research identifies early sensorimotor markers for autism spectrum disorder

A study published in iScience has uncovered significant findings related to the early sensorimotor features and cognitive abilities of toddlers who are later diagnosed with Autism Spectrum Disorder (ASD). The research suggests that a higher IQ may confer resilience to atypical sensorimotor functioning, highlighting the need for more pr...

SourceThe Graduate Center, CUNY·JournaliScience·TypeObservational study·DateAug 14, 2024

Pink elephants in the brain?

A study published in Neuron reveals that neurons are wired to connect seemingly unrelated concepts, enhancing the brain's ability to predict what we see based on past experiences. Visual experience influences the organisation of feedback projections, which store information about the world.

SourceChampalimaud Centre for the Unknown·JournalNeuron·TypeExperimental study·DateAug 12, 2024

Fetal brain impacted when mom fights severe flu: New mouse study explains how

A new study using live mice and influenza virus sheds light on how maternal immune response affects fetal brain development. Researchers found that only a subset of severe infections can cause changes in the developing fetal brain, increasing the risk for neurodevelopmental disorders like schizophrenia and autism spectrum disorder.

Neurons in the frontal cortex help macaque monkeys decode social interactions

Research on macaque monkeys reveals that neurons in the frontal cortex respond differently to real and filmed partners during turn-taking exercises. This finding suggests that these neurons may be involved in spatial perspective-taking, a cognitive operation that enables individuals to mentally rotate themselves into others' positions.

SourceNational Institutes of Natural Sciences·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJul 24, 2024

Healthy prenatal dietary pattern and offspring autism

A cohort study found that a healthy prenatal dietary pattern was linked to reduced risk of autism diagnosis and social communication difficulties in offspring. Adherence to this dietary pattern was not significantly associated with reduced restrictive and repetitive behaviors.

SourceJAMA Network·JournalJAMA Network Open·DateJul 18, 2024

Children with conduct disorder show widespread brain structural differences – new international study

Children with conduct disorder show significant reductions in brain surface area and volume of subcortical regions compared to typically developing children. These findings suggest that the development of the brain is different in individuals with CD, highlighting the need for further research into this under-recognized condition.

SourceUniversity of Birmingham·JournalThe Lancet Psychiatry·TypeObservational study·DateJul 16, 2024

Why are board games so popular among many people with autism? New research explains

A new study reveals that people with autism are overrepresented in board gaming compared to the general population, and playing modern board games provides a social outlet in a structured space. The research also shows that board games take pressure off meeting and interacting with others, offering a form of escapism.

SourceUniversity of Plymouth·JournalJournal of Autism and Developmental Disorders·TypeObservational study·DateJul 12, 2024

Finding the sweet spot in brain development

A study by Cold Spring Harbor Laboratory researchers has discovered a crucial receptor protein that regulates the timing of temporary neural connections in the developing brain. Without this protein, mice exhibit atypical behaviors, highlighting its potential role in shaping brain circuits and preventing neurodevelopmental disorders.

SourceCold Spring Harbor Laboratory·JournalNature Communications·DateJul 1, 2024

First trial of new suicide prevention intervention designed for autistic people

A new trial of a suicide prevention intervention for autistic adults found that almost two-thirds of participants found the adapted safety plans useful. The study, funded by the National Institute of Health Research, suggests that personalized interventions can reduce self-harm and suicidal behaviors in autistic individuals.

SourceUniversity of Nottingham·JournalEClinicalMedicine·TypeRandomized controlled/clinical trial·DateJun 10, 2024

Autism screening tool goes global

A new autism screening tool, Autism Detection in Early Childhood (ADEC), has been successfully adapted for a Spanish-speaking population in Ecuador. The study found that ADEC can be used to identify children with high likelihood of developing autism, providing a cost-effective way to improve early diagnosis and support.

SourceFlinders University·JournalNature·TypeExperimental study·DateJun 4, 2024

No significant correlation found between labor-inducing drug during childbirth and future risk of ADHD and autism spectrum disorder in children, study finds

A large cohort study found no association between synthetic oxytocin exposure during childbirth and increased risk of ADHD or autism in offspring. Interestingly, sOT was linked to lower ADHD risk among children born to mothers with pre-pregnancy obesity.

SourceEnvironmental influences on Child Health Outcomes·JournalJournal of Neurodevelopmental Disorders·TypeObservational study·DateMay 28, 2024

Researchers find key differences in brain development between autistic boys and girls

A new study found significant differences in brain development between autistic boys and girls, with autistic females showing a thicker cortex at age 3 and faster cortical thinning into middle childhood. The findings highlight the need for longitudinal studies that include both sexes to better understand sex-specific changes in autism.

SourceUniversity of California - Davis Health·JournalMolecular Psychiatry·DateMay 22, 2024

Mimicking infection in pregnant mice provokes persistent changes in juvenile brains

Researchers at Harvard University have identified a specific cell type in the mouse embryonic brain that responds to an immune response in the mother, altering gene regulation and persisting in juvenile mice. This study provides new insights into how maternal immune responses might influence brain development in embryos, potentially sh...

SourceThe Company of Biologists·JournalDevelopment·TypeExperimental study·DateMay 22, 2024

Autistic-led study reveals urgent priorities for supporting autistic girls and gender diverse youth

A new study reveals the challenges faced by autistic girls, women and gender diverse people in healthcare, education and society. Autistic young people express a pressing need for tailored support at school, better understanding of their experiences and strengths, and specialised mental health services.

SourceUniversity of Technology Sydney·JournalJournal of Autism and Developmental Disorders·TypeSurvey·DateMay 22, 2024

Study implicates Neanderthal DNA in autism susceptibility

Researchers at Clemson University discovered that certain Neanderthal-derived genetic variations are more common in people with autism than in the general population. These findings suggest long-term effects of ancient human hybridization on brain organization and function, potentially leading to earlier diagnostics.

SourceClemson University·JournalMolecular Psychiatry·TypeData/statistical analysis·DateMay 17, 2024

New study links autism spectrum disorder to disrupted developmental dopamine

Researchers discovered a link between disrupted developmental dopamine signaling and autism spectrum disorder, highlighting the importance of studying neural development pathways. The study found that dopaminergic signaling disruptions led to neural circuit abnormalities and behavioral phenotypes reminiscent of autism in zebrafish larvae.

SourceElsevier·JournalAmerican Journal Of Pathology·TypeExperimental study·DateMay 15, 2024

6-month-old infants who struggle to understand and predict sequences are more likely to have social communication difficulties aged 2-3, highlighting visual statistical learning as a potential predictor of autistic-related traits

Research suggests that preverbal infants who struggle with sequence understanding are more likely to experience social communication difficulties later in childhood. Visual statistical learning is identified as a key predictor of autistic-related traits and behaviors.

SourcePLOS·JournalPLOS ONE·DateMay 15, 2024

Brain mechanisms underlying sensory hypersensitivity in a mouse model of autism spectrum disorder

A study by IBS researchers has identified the anterior cingulate cortex (ACC) as a key region responsible for sensory hypersensitivity associated with autism spectrum disorders. The team discovered that ACC hyperactivity and brain-wide hyperconnectivity contribute to sensory abnormalities in Grin2b-mutant mice.

SourceInstitute for Basic Science·JournalMolecular Psychiatry·TypeExperimental study·DateMay 9, 2024

Study shows heightened sensitivity to PTSD in autism

A recent study has revealed that individuals with autism spectrum disorder (ASD) are more susceptible to post-traumatic stress disorder (PTSD) due to an overactivation of the prefrontal cortex. The researchers found that core autism traits worsen when traumatic memories are formed, highlighting a potential predisposition to PTSD in ASD.

SourceUniversity of Queensland·JournaliScience·TypeExperimental study·DateMay 8, 2024