David Ledbetter is chief clinical officer of Dascena, a personalized medicine company.
David Ledbetter
Chief clinical officer
Dascena
From this contributor
There are no autism-specific genes, just brain genes
There is not yet a single example of a gene that, when mutated, increases the likelihood of autism but not of other neurodevelopmental conditions, including intellectual disability.

There are no autism-specific genes, just brain genes
Developmental disorders should be viewed as continuum
Intellectual disability, autism, epilepsy and schizophrenia should be considered part of a spectrum of developmental brain dysfunction, says David Ledbetter.

Developmental disorders should be viewed as continuum
Explore more from The Transmitter
Why hype for autism stem cell therapies continues despite dead ends
After numerous tests, there is still no evidence that these experimental treatments help, so now is not the time to expand access to them.

Why hype for autism stem cell therapies continues despite dead ends
After numerous tests, there is still no evidence that these experimental treatments help, so now is not the time to expand access to them.
Adult human cortex does not reorganize after amputation
The results from a new longitudinal study contradict classic findings in monkeys but may not warrant a rewriting of the textbooks just yet.

Adult human cortex does not reorganize after amputation
The results from a new longitudinal study contradict classic findings in monkeys but may not warrant a rewriting of the textbooks just yet.
Remembering A. James Hudspeth, hair cell explorer
Hudspeth, who died 16 August at age 79, devoted his 50-year career to untangling how the ear converts sound into electrical signals.

Remembering A. James Hudspeth, hair cell explorer
Hudspeth, who died 16 August at age 79, devoted his 50-year career to untangling how the ear converts sound into electrical signals.