Schizophrenia
Brain ‘chimeroids’ reveal person-to-person differences rooted in genetics
These fusions created from multiple donors’ organoids may help scale up comparative brain research.
![Research image of a chimeroid.](https://www.thetransmitter.org/wp-content/uploads/2024/07/Chimeroid-Lede-1200-1024x692.webp)
Brain ‘chimeroids’ reveal person-to-person differences rooted in genetics
These fusions created from multiple donors’ organoids may help scale up comparative brain research.
Connectivity takes U-turn in people with rare autism-linked mutations
Patterns of brain connectivity shift during puberty in people with deletion of the 22q11.2 chromosomal region.
![Research image of brain activity](https://www.thetransmitter.org/wp-content/uploads/2024/05/1200_connectivity-1024x683.png)
Connectivity takes U-turn in people with rare autism-linked mutations
Patterns of brain connectivity shift during puberty in people with deletion of the 22q11.2 chromosomal region.
‘SNAP’ dance of astrocytes and neurons falls out of step with age, disease
The findings add to growing evidence that astrocytes are star players in cognition.
![A research image showing astrocytes and neurons](https://www.thetransmitter.org/wp-content/uploads/2024/03/Genes-neuroscience-1200-1024x692.webp)
‘SNAP’ dance of astrocytes and neurons falls out of step with age, disease
The findings add to growing evidence that astrocytes are star players in cognition.
Is excess brain fluid an early marker of autism?
Brain scans of hundreds of infants suggest that up to 80 percent of those with autism have unusual amounts of cerebrospinal fluid. Researchers are studying how this might contribute to the condition.
![A grid of four brain scans showing excess cerebrospinal fluid.](https://www.thetransmitter.org/wp-content/uploads/2023/08/1200-CSF-trends-autism-lede-final.png)
Is excess brain fluid an early marker of autism?
Brain scans of hundreds of infants suggest that up to 80 percent of those with autism have unusual amounts of cerebrospinal fluid. Researchers are studying how this might contribute to the condition.
‘Polygenic risk scores’ for autism, explained
These scores — composite measures of a person’s autism-linked common genetic variants — cannot predict an autism diagnosis but could help researchers better understand the condition’s underlying biology.
![Illustration of DNA methylation.](https://www.thetransmitter.org/wp-content/uploads/2023/05/844-polygenic-risk-scores-autism-explained.jpg)
‘Polygenic risk scores’ for autism, explained
These scores — composite measures of a person’s autism-linked common genetic variants — cannot predict an autism diagnosis but could help researchers better understand the condition’s underlying biology.
Autism and the cell’s antennae
Many autism-linked genes are somehow tied to cilia, the tiny hair-like sensors that stud a cell’s surface. But the question remains whether, and how, cilia differences contribute to the condition.
![Lab images of cilia.](https://www.thetransmitter.org/wp-content/uploads/2022/01/Cilia-Seabra-lab-autism-844.jpg)
Autism and the cell’s antennae
Many autism-linked genes are somehow tied to cilia, the tiny hair-like sensors that stud a cell’s surface. But the question remains whether, and how, cilia differences contribute to the condition.
The link between maternal infection and autism, explained
Having an infection during pregnancy is tied to a small increase in the chances of having an autistic child, but the connection may not be causal.
![Illustration of a pregnant woman seated next to a large diagram of the brain featuring chromosomes, bacteria and other microbes.](https://www.thetransmitter.org/wp-content/uploads/2022/12/1200-maternal-inflamation-1024x683.webp)
The link between maternal infection and autism, explained
Having an infection during pregnancy is tied to a small increase in the chances of having an autistic child, but the connection may not be causal.
Autism’s genetic heterogeneity evident in brain connectivity patterns
The results highlight the importance of subgrouping study participants based on their underlying genetics, the researchers say.
![Conceptual illustration of a door leading from one area of the brain to another area of the brain.](https://www.thetransmitter.org/wp-content/uploads/2022/09/brain-connectivity-patterns-autism-genetic-heterogeneity-844.jpg)
Autism’s genetic heterogeneity evident in brain connectivity patterns
The results highlight the importance of subgrouping study participants based on their underlying genetics, the researchers say.
Noah Sasson: Connecting with the autistic community
Intentional interactions with autistic people led Sasson to refocus his research.
![Noah Sasson, a thin white man, stands in a courtyard with his hands in his pockets.](https://www.thetransmitter.org/wp-content/uploads/2022/09/Noah-Sasson-autism-844.jpg)
Noah Sasson: Connecting with the autistic community
Intentional interactions with autistic people led Sasson to refocus his research.
Chromosome 22 mutations leave telltale marks on brain development in autistic people
Many brain regions develop differently between people with 22q11.2 duplications and deletions, and those trajectories also vary with a person’s diagnosis.
![A large MRI scan of a human brain, with a grid of 15 smaller MRI scans to its left](https://www.thetransmitter.org/wp-content/uploads/2022/08/longitudinal-cortical-development-autism-844.jpg)
Chromosome 22 mutations leave telltale marks on brain development in autistic people
Many brain regions develop differently between people with 22q11.2 duplications and deletions, and those trajectories also vary with a person’s diagnosis.
Explore more from The Transmitter
New connectomes fly beyond the brain
Researchers are mapping the neurons in Drosophila’s ventral nerve cord, where the central nervous system meets the rest of the body.
![Research image of neurons in the fly’s ventral nerve cord.](https://www.thetransmitter.org/wp-content/uploads/2024/07/lede-motormodules-1200-1024x692.webp)
New connectomes fly beyond the brain
Researchers are mapping the neurons in Drosophila’s ventral nerve cord, where the central nervous system meets the rest of the body.
Building an autism research registry: Q&A with Tony Charman
A purpose-built database of participants who have shared genomic and behavioral data could give clinical trials a boost, Charman says.
![Illustration of researchers talking to laypeople amidst strands of DNA.](https://www.thetransmitter.org/wp-content/uploads/2024/07/1200_Charman-1024x687.webp)
Building an autism research registry: Q&A with Tony Charman
A purpose-built database of participants who have shared genomic and behavioral data could give clinical trials a boost, Charman says.
Cerebellar circuit may convert expected pain relief into real thing
The newly identified circuit taps into the brain’s opioid system to provide a top-down form of pain relief.
![](https://www.thetransmitter.org/wp-content/uploads/2024/07/paincircuit-1200-1024x692.webp)
Cerebellar circuit may convert expected pain relief into real thing
The newly identified circuit taps into the brain’s opioid system to provide a top-down form of pain relief.