Ciara Curtin is a freelance science writer based in Atlanta. Her work focuses mostly on genetics and medicine. Ciara has an M.A. in molecular, cellular and developmental biology from the University of California, Santa Barbara, and one in journalism from New York University’s science writing program.
![](https://www.thetransmitter.org/wp-content/uploads/2017/07/Ciara-pic-copyCC.jpg)
Ciara Curtin
From this contributor
Brain scans reveal subtypes of fragile X syndrome in boys
Differences in brain structure may distinguish boys with relatively mild features of fragile X syndrome from those with a severe form of the condition.
![Brain scans of boys with fragile X syndrome fall into distinct groupings.](https://www.thetransmitter.org/wp-content/uploads/2017/10/PNAS-2017-BrunoFig1-Lead844jpg.jpg)
Brain scans reveal subtypes of fragile X syndrome in boys
Data do-over backs dominance of genetics in autism risk
A reanalysis of data from more than 2 million children in Sweden suggests inherited genetic factors account for 83 percent of autism risk.
![Boy and toddler sitting on sofa.](https://www.thetransmitter.org/wp-content/uploads/2017/10/20171019-HeritabilitySwedeTwins844.jpg)
Data do-over backs dominance of genetics in autism risk
Rat study ties Rett syndrome gene to pain processing
Mutations in MECP2, the gene mutated in Rett syndrome, may alter the proportions and activity of sensory neurons in rats.
![](https://www.thetransmitter.org/wp-content/uploads/2017/09/Figure-2.DLeft-copyfinal-crop.jpg)
Rat study ties Rett syndrome gene to pain processing
Autism drugs may alter brain connectivity
Children with autism who take certain medications have different patterns of brain connectivity than do unmedicated children with the condition.
Twin tots reveal autism traits arise mostly from genes
Genes are bigger contributors to autism features than are environmental factors, according to a study of nearly 39,000 twins.
![](https://www.thetransmitter.org/wp-content/uploads/2017/07/20170706-Twins844.jpg)
Twin tots reveal autism traits arise mostly from genes
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.