Timothy Roberts is Oberkircher Family Chair in Pediatric Radiology and vice-chair of radiology research at the Children’s Hospital of Philadelphia. He is also professor of radiology at the University of Pennsylvania.
Timothy Roberts
Professor of radiology
Children's Hospital of Philadelphia
From this contributor
In quest for autism biomarkers, this technique has magnetic appeal
To find biological markers of autism, scientists would be wise to measure the brain's electrical activity along with the resulting magnetic fields.
In quest for autism biomarkers, this technique has magnetic appeal
By
Timothy Roberts
26 March 2019 | 6 min read
When tracking brain activity, timing can be key
A brain imaging technique called magnetoencephalography characterizes not just what is happening in the brain, but also where and when, making it ideally suited for studying autism.
When tracking brain activity, timing can be key
By
Timothy Roberts
15 March 2016 | 5 min read
Imaging biomarkers could signal autism spectrum disorder
There does not appear to be a single genetic or environmental cause of autism, and given the heterogeneity of symptoms, coming up with a clear yes or no test for autism is challenging. Timothy Roberts argues that imaging and electrophysiology are key in the search for autism biomarkers.
Imaging biomarkers could signal autism spectrum disorder
By
Timothy Roberts
12 April 2011 | 4 min read
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This paper changed my life: John Tuthill reflects on the subjectivity of selfhood
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This paper changed my life: John Tuthill reflects on the subjectivity of selfhood
Wittlinger, Wehner and Wolf’s 2006 “stilts and stumps” Science paper revealed how ants pull off extraordinary feats of navigation using a biological odometer, and it inspired Tuthill to consider how other insects sense their own bodies.
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John Tuthill
12 January 2026 | 7 min read
Some facial expressions are less reflexive than previously thought
A countenance such as a grimace activates many of the same cortical pathways as voluntary facial movements.
Some facial expressions are less reflexive than previously thought
A countenance such as a grimace activates many of the same cortical pathways as voluntary facial movements.
By
Natalia Mesa
8 January 2026 | 5 min read
Cracking the neural code for emotional states
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Cracking the neural code for emotional states
Rather than act as a simple switchboard for innate behaviors, the hypothalamus encodes an animal's internal state, which influences behavior.
By
Natalia Mesa
8 January 2026 | 8 min read