User profiles for Timothy P. L. Roberts
Timothy RobertsProfessor of Radiology, University of Pennsylvania Verified email at email.chop.edu Cited by 24415 |
GABA estimation in the brains of children on the autism spectrum: measurement precision and regional cortical variation
…, DJ Wang, RG Port, L Blaskey, SE Levy, TPL Roberts - Neuroimage, 2014 - Elsevier
H magnetic resonance spectroscopy ( 1 H MRS) and spectral editing methods, such as
MEGA-PRESS, allow researchers to investigate metabolite and neurotransmitter concentrations …
MEGA-PRESS, allow researchers to investigate metabolite and neurotransmitter concentrations …
Latency of the auditory evoked neuromagnetic field components: stimulus dependence and insights toward perception
This review will focus on investigations of the auditory evoked neuromagnetic field component,
the M100, detectable in the magnetoencephalogram recorded during presentation of …
the M100, detectable in the magnetoencephalogram recorded during presentation of …
Diffusion weighted magnetic resonance imaging in stroke
TPL Roberts, HA Rowley - European journal of radiology, 2003 - Elsevier
Diffusion weighted magnetic resonance imaging has evolved from an esoteric laboratory
experiment to a critical aspect of routine clinical care of the patient presenting with symptoms …
experiment to a critical aspect of routine clinical care of the patient presenting with symptoms …
Quantitative measurement of microvascular permeability in human brain tumors achieved using dynamic contrast-enhanced MR imaging: correlation with histologic …
HC Roberts, TPL Roberts… - American Journal of …, 2000 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Dynamic contrast-enhanced MR imaging may be used to
quantify tissue fractional blood volume (fBV) and microvascular permeability. We tested this …
quantify tissue fractional blood volume (fBV) and microvascular permeability. We tested this …
Validating γ oscillations and delayed auditory responses as translational biomarkers of autism
BACKGROUND: Difficulty modeling complex behavioral phenotypes in rodents (eg, language)
has hindered pathophysiological investigation and treatment development for autism …
has hindered pathophysiological investigation and treatment development for autism …
MEG detection of delayed auditory evoked responses in autism spectrum disorders: towards an imaging biomarker for autism
TPL Roberts, SY Khan, M Rey, JF Monroe… - Autism …, 2010 - Wiley Online Library
Motivated by auditory and speech deficits in autism spectrum disorders (ASD), the
frequency dependence of superior temporal gyrus (STG) 50 msec (M50) and 100 msec (M100) …
frequency dependence of superior temporal gyrus (STG) 50 msec (M50) and 100 msec (M100) …
Relating MEG measured motor cortical oscillations to resting γ-aminobutyric acid (GABA) concentration
The human motor cortex exhibits characteristic beta (15–30Hz) and gamma oscillations (60–90Hz),
typically observed in the context of transient finger movement tasks. The functional …
typically observed in the context of transient finger movement tasks. The functional …
[HTML][HTML] White matter changes of neurite density and fiber orientation dispersion during human brain maturation
…, P Bukshpun, MLJ Wakahiro, JI Berman, TPL Roberts… - PloS one, 2015 - journals.plos.org
Diffusion tensor imaging (DTI) studies of human brain development have consistently
shown widespread, but nonlinear increases in white matter anisotropy through childhood, …
shown widespread, but nonlinear increases in white matter anisotropy through childhood, …
The ultraluminous state revisited: fractional variability and spectral shape as diagnostics of super-Eddington accretion
AD Sutton, TP Roberts… - Monthly Notices of the …, 2013 - academic.oup.com
Although we are nearing a consensus that most ultraluminous X-ray sources (ULXs) below
10 41 erg s −1 represent stellar mass black holes accreting in a super-Eddington ‘…
10 41 erg s −1 represent stellar mass black holes accreting in a super-Eddington ‘…
Resting-state oscillatory activity in autism spectrum disorders
L Cornew, TPL Roberts, L Blaskey… - Journal of autism and …, 2012 - Springer
Neural oscillatory anomalies in autism spectrum disorders (ASD) suggest an excitatory/inhibitory
imbalance; however, the nature and clinical relevance of these anomalies are unclear. …
imbalance; however, the nature and clinical relevance of these anomalies are unclear. …