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
By
David Ledbetter, Scott Myers
23 March 2021 | 5 min read
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
By
David Ledbetter
6 May 2013 | 3 min read
Explore more from The Transmitter
Is our intelligence rooted in how living organisms are organized?
Kathryn Nave explains how a concept called constraint closure may be fundamental to understanding brains, minds and cognition.
Is our intelligence rooted in how living organisms are organized?
Kathryn Nave explains how a concept called constraint closure may be fundamental to understanding brains, minds and cognition.
By
Paul Middlebrooks
15 July 2026 | 1 min read
Making an impact through academic administration
As executive director of research at Harvard Medical School’s Department of Neurobiology, Soha Ashrafi supports more than 300 scientists, students and staff members.
Making an impact through academic administration
As executive director of research at Harvard Medical School’s Department of Neurobiology, Soha Ashrafi supports more than 300 scientists, students and staff members.
By
Katie Moisse
15 July 2026 | 7 min read
This paper changed my life: Embracing an early model for naturalistic neuroscience
A 1992 PNAS paper showed how birdsong upregulates the expression of an immediate early gene in bird forebrains. The work revealed to Ribeiro the importance of studying molecular responses in naturalistic contexts.
This paper changed my life: Embracing an early model for naturalistic neuroscience
A 1992 PNAS paper showed how birdsong upregulates the expression of an immediate early gene in bird forebrains. The work revealed to Ribeiro the importance of studying molecular responses in naturalistic contexts.
By
Sidarta Ribeiro
14 July 2026 | 4 min read