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
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The challenge of defining a neural population
Our current approach is largely arbitrary. We need new methods for grouping cells, ideally by their dynamics.

The challenge of defining a neural population
Our current approach is largely arbitrary. We need new methods for grouping cells, ideally by their dynamics.
Oxytocin prompts prairie voles to oust outsiders, fortifying their friendships
The “love hormone” drives the neurobiology behind platonic bonds in animals usually studied for their romantic attachments.

Oxytocin prompts prairie voles to oust outsiders, fortifying their friendships
The “love hormone” drives the neurobiology behind platonic bonds in animals usually studied for their romantic attachments.
Contested paper on vaccines, autism in rats retracted by journal
The editor-in-chief cited “inconsistencies in the number of subjects” as the reason for the retraction.

Contested paper on vaccines, autism in rats retracted by journal
The editor-in-chief cited “inconsistencies in the number of subjects” as the reason for the retraction.