Transient ischemic attacks before ischemic stroke: preconditioning the human brain? A multicenter magnetic resonance imaging study

S Wegener, B Gottschalk, V Jovanovic, R Knab… - Stroke, 2004 - Am Heart Assoc
Background and Purpose— We investigated whether transient ischemic attacks (TIAs) before
stroke can induce tolerance by raising the threshold of tissue vulnerability in the human …

fMRI during word processing in dyslexic and normal reading children

P Georgiewa, R Rzanny, JM Hopf, R Knab… - …, 1999 - journals.lww.com
THE present study addresses phonological processing in children with developmental
dyslexia. Following the hypothesis of a core deficit of assembled phonology in dyslexia a set of …

Surface orientation discrimination activates caudal and anterior intraparietal sulcus in humans: an event-related fMRI study

…, F Hamzei, V Glauche, R Knab… - Journal of …, 2001 - journals.physiology.org
Perception of surface orientation is an essential step for the reconstruction of the three-dimensional
(3D) structure of an object. Human lesion and functional neuroimaging studies have …

The influence of extra-and intracranial artery disease on the BOLD signal in FMRI

F Hamzei, R Knab, C Weiller, J Röther - Neuroimage, 2003 - Elsevier
Functional MRI is based on the vascular response due to neuronal activation. The underlying
mechanism of fMRI is the blood oxygenation level-dependent (BOLD) effect—a complex …

Subcortical structures involved in pain processing: evidence from single-trial fMRI

U Bingel, M Quante, R Knab, B Bromm, C Weiller… - Pain, 2002 - Elsevier
Pain is processed in multiple cortical and subcortical brain areas. Subcortical structures are
substantially involved in different processes that are closely linked to pain processing, eg …

Prediction of malignant middle cerebral artery infarction by early perfusion-and diffusion-weighted magnetic resonance imaging

GJ Thomalla, T Kucinski, V Schoder, J Fiehler, R Knab… - Stroke, 2003 - Am Heart Assoc
Background and Purpose— We tested the hypothesis that early diffusion- and perfusion-weighted
MRI (DWI and PWI, respectively) allows the prediction of malignant middle cerebral …

Somatotopic organization of human somatosensory cortices for pain: a single trial fMRI study

U Bingel, J Lorenz, V Glauche, R Knab, J Gläscher… - Neuroimage, 2004 - Elsevier
The ability to locate pain plays a pivotal role in immediate defense and withdrawal behavior.
However, how the brain localizes nociceptive information without additional information …

Cerebral blood flow predicts lesion growth in acute stroke patients

J Fiehler, M von Bezold, T Kucinski, R Knab, B Eckert… - Stroke, 2002 - Am Heart Assoc
Background and Purpose— We sought to study the role of MRI-derived cerebral blood flow (CBF)
measurements for the prediction of lesion development in acute stroke patients. …

Apparent diffusion coefficient decreases and magnetic resonance imaging perfusion parameters are associated in ischemic tissue of acute stroke patients

J Fiehler, R Knab, JR Reichenbach… - Journal of Cerebral …, 2001 - journals.sagepub.com
Perfusion-and diffusion-weighted magnetic resonance imaging scans are thought to allow
the characterization of tissue at risk of infarction. The authors tested the hypothesis that the …

Single trial fMRI reveals significant contralateral bias in responses to laser pain within thalamus and somatosensory cortices

U Bingel, M Quante, R Knab, B Bromm, C Weiller… - Neuroimage, 2003 - Elsevier
Pain is processed in multiple brain areas, indicating the complexity of pain perception. The
ability to locate pain plays a pivotal role in immediate defense and withdrawal behavior. …