• Publications
  • Influence
A theory of magnitude: common cortical metrics of time, space and quantity
  • V. Walsh
  • Medicine, Psychology
  • Trends in Cognitive Sciences
  • 1 November 2003
Research into the perception of space, time and quantity has generated three separate literatures. That number can be represented spatially is, of course, well accepted and forms a basis for researchExpand
  • 1,384
  • 200
To see but not to read; the magnocellular theory of dyslexia
Developmental dyslexics often complain that small letters appear to blur and move around when they are trying to read. Anatomical, electrophysiological, psychophysical and brain-imaging studies haveExpand
  • 1,083
  • 55
  • PDF
Modulating Neuronal Activity Produces Specific and Long-Lasting Changes in Numerical Competence
Summary Around 20% of the population exhibits moderate to severe numerical disabilities [1–3], and a further percentage loses its numerical competence during the lifespan as a result of stroke orExpand
  • 284
  • 18
  • PDF
Induced Cross-Modal Synaesthetic Experience Without Abnormal Neuronal Connections
Are the kinds of abnormal cross-modal interactions seen in synaesthesia or following brain damage due to hyperconnectivity between or within brain areas, or are they a result of lack of inhibition?Expand
  • 112
  • 18
  • PDF
Unleashing Potential: Transcranial Direct Current Stimulation over the Right Posterior Parietal Cortex Improves Change Detection in Low-Performing Individuals
The limits of human visual short-term memory (VSTM) have been well documented, and recent neuroscientific studies suggest that VSTM performance is associated with activity in the posterior parietalExpand
  • 194
  • 14
  • PDF
Transfer of Cognitive Training across Magnitude Dimensions Achieved with Concurrent Brain Stimulation of the Parietal Lobe
Improvement in performance following cognitive training is known to be further enhanced when coupled with brain stimulation. Here we ask whether training-induced changes can be maintained long termExpand
  • 126
  • 10
  • PDF
The nature of foveal representation
A fundamental question in visual perception is whether the representation of the fovea is split at the midline between the two hemispheres, or bilaterally represented by overlapping projections ofExpand
  • 112
  • 9
  • PDF
Visual Selection and Posterior Parietal Cortex: Effects of Repetitive Transcranial Magnetic Stimulation on Partial Report Analyzed by Bundesen's Theory of Visual Attention
Posterior parietal cortex (PPC) may contribute to visual selection by exerting top-down influences on visual processing. To seek direct evidence for this, we used 10 Hz repetitive transcranialExpand
  • 95
  • 9
  • PDF
Specialization in the Human Brain: The Case of Numbers
How numerical representation is encoded in the adult human brain is important for a basic understanding of human brain organization, its typical and atypical development, its evolutionary precursors,Expand
  • 57
  • 8
  • PDF
Efficacy of repetitive transcranial magnetic stimulation/transcranial direct current stimulation in cognitive neurorehabilitation
Cognitive deficits are a common consequence of neurologic disease, in particular, of traumatic brain injury, stroke, and neurodegenerative disorders, and there is evidence that specific cognitiveExpand
  • 221
  • 6
  • PDF