Timothy P. Roberts

About

Timothy P. Roberts, Ph.D., is a Professor of Radiology at the University of Pennsylvania's Perelman School of Medicine. He holds the Oberkircher Family Endowed Chair in Pediatric Radiology at the Children's Hospital of Philadelphia and serves as the Director of the Program in Advanced Imaging Research at the same institution. His department affiliation is Radiology, and he is involved in graduate group affiliations including Neuroscience, Bioengineering, and others. Dr. Roberts completed his BA in Natural Sciences at Cambridge University in 1988, his MA in 1991, and his PhD in MRI also in 1991 at Cambridge University. His research focuses on advanced imaging techniques, particularly MRI, and he contributes to the academic and clinical fields through his leadership roles and research activities at Children's Hospital of Philadelphia and the University of Pennsylvania.

Research topics

• Medicine
• Computer Science
• Nuclear medicine
• Artificial Intelligence
• Biology
• Psychology
• Nuclear magnetic resonance
• Neuroscience
• Internal medicine
• Radiology

Selected publications

• 16p11.2 deletion syndrome

  Current Opinion in Genetics & Development · 2021-03-02 · 99 citations

  reviewOpen access
  PublisherOA PDFDOI

• Frequency drift in MR spectroscopy at 3T

  NeuroImage · 2021 · 50 citations

  PURPOSE: field, especially when gradient intensive sequences are used. The aim of the study was to set a benchmark for typical drift encountered during MR spectroscopy (MRS) to assess the need for real-time field-frequency locking on MRI scanners by comparing field drift data from a large number of sites. METHOD: A standardized protocol was developed for 80 participating sites using 99 3T MR scanners from 3 major vendors. Phantom water signals were acquired before and after an EPI sequence. The…

  PublisherDOI

• Effects of eight neuropsychiatric copy number variants on human brain structure

  Translational Psychiatry · 2021 · 46 citations

  Many copy number variants (CNVs) confer risk for the same range of neurodevelopmental symptoms and psychiatric conditions including autism and schizophrenia. Yet, to date neuroimaging studies have typically been carried out one mutation at a time, showing that CNVs have large effects on brain anatomy. Here, we aimed to characterize and quantify the distinct brain morphometry effects and latent dimensions across 8 neuropsychiatric CNVs. We analyzed T1-weighted MRI data from clinically and non-cli…

  DOI

• Comparison of Multivendor Single-Voxel MR Spectroscopy Data Acquired in Healthy Brain at 26 Sites

  Radiology · 2020 · 44 citations

  = .28). Conclusion Multisite multivendor single-voxel MR spectroscopy studies performed at 3.0 T can yield results that are coherent across vendors, provided that vendor differences in pulse sequence implementation are accounted for in data analysis. However, the site-related effects on variability were more profound and suggest the need for further standardization of spectroscopic protocols. © RSNA, 2020

  PublisherOA PDFDOI

• The development and structure of the HEALthy Brain and Child Development (HBCD) Study EEG protocol

  Developmental Cognitive Neuroscience · 2024-09-18 · 25 citations

  articleOpen access

  The HEALthy Brain and Child Development (HBCD) Study, a multi-site prospective longitudinal cohort study, will examine human brain, cognitive, behavioral, social, and emotional development beginning prenatally and planned through early childhood. Electroencephalography (EEG) is one of two brain imaging modalities central to the HBCD Study. EEG records electrical signals from the scalp that reflect electrical brain activity. In addition, the EEG signal can be synchronized to the presentation of d…

  PublisherDOI

Recent grants

• Neurophysiological and neuroanatomical processes related to Autism Spectrum Disorder in Neurofibromatosis Type 1

  NIH · $473k · 2018–2021

• Analytical Neurochemistry: Core D

  NIH · $12.7M · 2021

• Electrophysiological Signatures of Language Impairment in Autism Spectrum Disord

  NIH · $3.2M · 2007–2021

Frequent coauthors

• Alexander Westphal

  Yale University

  730 shared

• Lawrence David Scahill

  609 shared

• Corey Ray-Subramanian

  University of Wisconsin–Madison

  450 shared

• Jessica L. Roesser

  University of Rochester

  426 shared

• Kelly Macy

  University of Vermont

  423 shared

• Sally J. Rogers

  University of California, Davis

  300 shared

• Susan M. Havercamp

  The Ohio State University

  292 shared

• Giacomo Vivanti

  Drexel University

  290 shared

Labs

• Roberts LaboratoryPI

Education

• PhD

  Cambridge University

  1992

• BA

  Cambridge University

  1988

Similar researchers at University of Pennsylvania

• John Q. Trojanowskih-296
• Craig B. Thompsonh-277
• Daniel J Raderh-236