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Andrew Simmons
Researcher at King's College London
Publications - 478
Citations - 40986
Andrew Simmons is an academic researcher from King's College London. The author has contributed to research in topics: Functional magnetic resonance imaging & Cancer. The author has an hindex of 102, co-authored 460 publications receiving 36608 citations. Previous affiliations of Andrew Simmons include Karolinska Institutet & University of London.
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Journal ArticleDOI
Optimal strategies for measuring diffusion in anisotropic systems by magnetic resonance imaging.
TL;DR: An algorithm is presented that minimizes the bias inherent in making measurements with a fixed set of gradient vector directions by spreading out measurements in 3‐dimensional gradient vector space and this results in reduced scan times, increased precision, or improved resolution in diffusion tensor images.
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Social intelligence in the normal and autistic brain: an fMRI study.
Simon Baron-Cohen,Howard Ring,Sally Wheelwright,Edward T. Bullmore,Edward T. Bullmore,Mick Brammer,Mick Brammer,Andrew Simmons,Steve C.R. Williams +8 more
TL;DR: Functional magnetic resonance imaging (fMRI) confirmed Brothers' prediction that the STG and amygdala show increased activation when using social intelligence, and provided support for the social brain theory of normal function, and the amygdala theory of autism.
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Mapping motor inhibition: conjunctive brain activations across different versions of go/no-go and stop tasks.
Katya Rubia,Tamara Russell,S Overmeyer,Michael Brammer,Edward T. Bullmore,Tonmoy Sharma,Andrew Simmons,Steve C.R. Williams,Vincent Giampietro,C. Andrew,Eric Taylor +10 more
TL;DR: Increased BOLD signal was observed in left hemispheric dorsolateral prefrontal, medial, and parietal cortices during the go/no-go task, presumably reflecting a left frontoparietal specialization for response selection.
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Hypofrontality in attention deficit hyperactivity disorder during higher-order motor control: a study with functional MRI.
Katya Rubia,S Overmeyer,Eric Taylor,Michael Brammer,Steve C.R. Williams,Andrew Simmons,Edward T. Bullmore +6 more
TL;DR: Functional magnetic resonance imaging was used to investigate the hypothesis that attention deficit hyperactivity disorder (ADHD) is associated with a dysfunction of prefrontal brain regions during motor response inhibition and motor timing, and hyperactive adolescents showed lower power of response.
Journal ArticleDOI
A lateralized brain network for visuospatial attention
Michel Thiebaut de Schotten,Michel Thiebaut de Schotten,Flavio Dell'Acqua,Flavio Dell'Acqua,Stephanie J. Forkel,Andrew Simmons,Andrew Simmons,Francesco Vergani,Declan G. Murphy,Marco Catani +9 more
TL;DR: The first evidence in humans for a larger parieto-frontal network in the right than left hemisphere is reported, and a significant correlation between the degree of anatomical lateralization and asymmetry of performance on visuospatial tasks is reported.