A P Leff
Affiliation: University College London
- The cortical dynamics of intelligible speechAlexander P Leff
Wellcome Trust Centre for Neuroimaging, University College London, London, United Kingdom
J Neurosci 28:13209-15. 2008..Task-related, directional effects can now be incorporated into models of speech comprehension...
- The left superior temporal gyrus is a shared substrate for auditory short-term memory and speech comprehension: evidence from 210 patients with strokeAlexander P Leff
Wellcome Trust Centre for Neuroimaging, Institute of Neurology, UCL, 12 Queen Square, London WC1N 3BG, UK
Brain 132:3401-10. 2009..The method applied here will be particularly useful for modelling structure-function relationships within other complex cognitive domains...
- Vowel-specific mismatch responses in the anterior superior temporal gyrus: an fMRI studyAlexander P Leff
Wellcome Trust Centre for Neuroimaging, London, UK
Cortex 45:517-26. 2009..Neural components of this pathway would be expected to respond to sudden, perhaps unexpected changes in speech signal that result in a change to narrative meaning...
- Structural anatomy of pure and hemianopic alexiaA P Leff
MRC Clinical Sciences Centre and Division of Neuroscience, Faculty of Medicine, Imperial College, Hammersmith Hospital, London, UK
J Neurol Neurosurg Psychiatry 77:1004-7. 2006..Patients with pure alexia also often have a hemianopia but are more disabled, making frequent errors on individual words; they have sustained damage to a brain region that supports efficient word identification...
- Treatment of reading impairment after strokeAlexander P Leff
Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, UK
Curr Opin Neurol 21:644-8. 2008..In this review, we focus on the classification of acquired alexia and the current theory and practice underlying the rehabilitation of this diverse set of disorders...
- The functional anatomy of single-word reading in patients with hemianopic and pure alexiaA P Leff
MRC Clinical Sciences Centre, Cyclotron Unit, Hammersmith Hospital, London W12 0NN, UK
Brain 124:510-21. 2001..The relative contributions of pure and hemianopic alexia in individual patients needs to be assessed, as the latter has been shown to respond well to specific rehabilitation programmes...
- How number processing survives left occipito-temporal damageM Cappelletti
Institute of Cognitive Neuroscience, University College London, London, UK
Neurocase 18:271-85. 2012....
- Changing meaning causes coupling changes within higher levels of the cortical hierarchyT M Schofield
Wellcome Trust Centre for Neuroimaging, University College London, 12 Queen Square, London WC1N 3BG, United Kingdom
Proc Natl Acad Sci U S A 106:11765-70. 2009..e., a word). Furthermore, our lateralization results suggest left hemisphere specificity for the processing of phonological stimuli, regardless of their elemental (i.e., spectrotemporal) characteristics...
- Lesion sites that predict the ability to gesture how an object is usedC J Price
Wellcome Trust Centre for Neuro imaging, Institute of Neurology, University College London, UK
Arch Ital Biol 148:243-58. 2010..Our methods provide a framework for future studies aiming to predict the consequences of brain damage...
- The planning and guiding of reading saccades: a repetitive transcranial magnetic stimulation studyA P Leff
Medical Research Council Cyclotron Unit and Imperial College School of Medicine, Hammersmith Hospital, London W12 0NN, UK
Cereb Cortex 11:918-23. 2001..Our results are compatible with the hypotheses that the left PPC maintains reading saccades along a line of text while the right FEF is involved in the preparation of the motor plan for the scanpath at the start of each new line of text...
- Optokinetic therapy improves text reading in patients with hemianopic alexia: a controlled trialG A Spitzyna
Department of Clinical Neurosciences, Royal Free Hospital and University College Medical School, London, UK
Neurology 68:1922-30. 2007....
- Reading Front to Back: MEG Evidence for Early Feedback Effects During Word RecognitionZ V J Woodhead
Wellcome Trust Centre for Neuroimaging, University College London, London, UK
Cereb Cortex 24:817-25. 2014..These findings demonstrate that left inferior frontal activity modulates vOT in the early stages of word processing and provides a mechanistic account of top-down effects during word recognition. ..
- The role of the thalamus in amnesia: a tractography, high-resolution MRI and neuropsychological studyL Cipolotti
Department of Neuropsychology, National Hospital for Neurology and Neurosurgery, Queen Square, London, United Kingdom
Neuropsychologia 46:2745-58. 2008..This finding raises the possibility that fractionation of familiarity and recollection to separate thalamic nuclei may not fully capture the role of thalamic sub-regions in memory function...
- "Bottom-up" and "top-down" effects on reading saccades: a case studyN J Upton
Department of Human Sciences, Brunel University, Uxbridge, Middlesex UB8 2HG, UK
J Neurol Neurosurg Psychiatry 74:1423-8. 2003..To investigate the role right foveal/parafoveal sparing plays in reading single words, word arrays, and eye movement patterns in a single case with an incongruous hemianopia...