• Publications
  • Influence
Transcranial magnetic stimulation and cognitive neuroscience
The most important (and least understood) considerations regarding the use of transcranial magnetic stimulation for cognitive neuroscience are discussed and advances in theUse of this technique for the replication and extension of findings from neuropsychology are outlined. Expand
The ganglion cell and cone distributions in the monkey's retina: Implications for central magnification factors
The distribution of cones and ganglion cells was determined in whole-mounted monkey retinae, revealing that the relative representation of the fovea increases substantially in both thalamus and cortex. Expand
Quantitative distribution of GABA-immunopositive and -immunonegative neurons and synapses in the monkey striate cortex (area 17).
The number of GABA-immunoreactive [GABA(+)] neurons and synapses was determined in functionally distinct subregions delineated as rich and poor in cytochrome oxidase (CO) in the visual cortex of adult macaque monkeys to determine the site of GABA influences in cortex. Expand
Post-decision wagering objectively measures awareness
It is shown that participants fail to maximize cash earnings by wagering high following correct decisions in blindsight, the Iowa gambling task and an artificial grammar task, demonstrating, without the uncertainties associated with the conventional subjective measures of awareness, that the participants were not aware that their decisions were correct. Expand
Retinal ganglion cells that project to the dorsal lateral geniculate nucleus in the macaque monkey
Comparing the results with those of comparable investigations on cats and rabbits shows a much clearer segregation of the terminal targets of different classes of ganglion cell in monkeys, the greatest difference being the absence in the monkey of a projection to the geniculate from gamma- and epsilon-like cells. Expand
The blindsight saga
  • A. Cowey
  • Psychology, Medicine
  • Experimental Brain Research
  • 2009
The substantial literature on the effects of removing parts or all of V1 in monkeys on the residual physiological cerebral responses to visual stimuli in their field defects is at last directly relevant to human blindsight. Expand
Spatial neglect in near and far space investigated by repetitive transcranial magnetic stimulation.
The results reproduced in normal subjects the dissociation between neglect in near and far space that has been described in patients with different right-hemisphere lesions, and supports the contention that there is a dorsal/near space-ventral/far space segregation of processing in the visual system which reflects the behavioural goals of the two putative visual streams. Expand
The axo-axonic interneuron in the cerebral cortex of the rat, cat and monkey
It is concluded that the presence of axo-axonic cells in all the species and cortical areas examined suggests their association with the structural design of pyramidal cells, wherever the latter occur, and with their participation in the information processing of pyramsidal cells. Expand
Temporal aspects of visual search studied by transcranial magnetic stimulation
The results suggest that a sub-region of the right parietal lobe is important for conjunction search but not for pre-attentive pop-out, and highlights the efficacy of transcranial magnetic stimulation as a complement to other spatial and temporal imaging techniques. Expand
Magnetically induced phosphenes in sighted, blind and blindsighted observers
The spatial and motion properties of phosphenes produced by transcranial magnetic stimulation in normal subjects and in two subjects with peripheral or cortical blindness are described. Expand