Richard Boulton

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PURPOSE To examine absolute changes in oxygenated (HbO) and deoxygenated (Hb) hemoglobin concentrations over the visual cortex in response to visual stimulation. Before this study, only relative changes have been reported at the visual cortex. METHODS Near infrared spectroscopy (NIRS) can be used to assess changes in hemoglobin concentration in tissue. A(More)
We investigated the effects of maternal drug misuse on neonatal visual evoked potentials (VEPs). Flash VEPs were recorded within 4 days of birth from 21 term infants of mothers misusing drugs and prescribed substitute methadone and 20 controls. Waveforms were classified as typical, atypical, immature or non-detectable, and amplitude and latencies were(More)
A few people in the IR community will already have heard of the Muscat software. It was begun in the early 1980s by Martin Porter, as a generalised and self-contained piece of software for managing computedsed catalogues, and for creating Information Retrieval systems. It was written with library and museum catalogues very much in mind, although it was(More)
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