James E Bailey

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Levels of substance P (sP), peptide-histidine-isoleucine (PHI), vasoactive intestinal polypeptide (VIP), cholecystokinin (CCK), neurotensin (NT), bombesin (BOM) and methionine-enkephalin (Met-Enk) like immunoreactivity were measured in cat, dog, primate and sloth cervical, thoracic, lumbar and sacral dorsal and ventral horns and dorsal root ganglia. The(More)
When a Maxwellian-view test field is alternately presented through different small areas in the pupil, a residual flicker is observed even though the luminance of the field is adjusted to compensate for the Stiles-Crawford effect. The stimulus alternation frequency that eliminated this residual flicker was used to estimate the magnitude of modulation in the(More)
The HRR pseudoisochromatic plate (pip) test was originally designed as a screening and diagnostic test for color vision deficiencies. The original HRR test is now long out of print. We evaluate here the new 4th edition of the HRR test, produced in 2002 by Richmond Products. The 2002 edition was compared to the original 1955 edition for a group of subjects(More)
PURPOSE Investigate photoreceptor orientation and alignment in an observer with a simple coloboma of the iris and no retinal involvement. METHOD Using a psychophysical procedure, extensive measurements of the Stiles-Crawford functions of the first kind (SCE I) were obtained from this observer. RESULTS In this observer, the usual(More)
Retinal lesions resembling retinitis pigmentosa were observed in a 39-year-old white male patient with a history of head trauma, reduced night vision, and periodic perception of light flashes. Perimetric testing revealed contracted superior-temporal fields. The results of numerous other tests of visual function, however, failed to support the tentative(More)
  • J E Bailey
  • 1980
Pathology of the visual system can alter perception in the central and peripheral visual field. Pseudoisochromatic plates and pigment panel tests can be used to study macular color vision. Perimetric techniques using color targets extends testing to the peripheral field. This facilitates detection of early, sometimes subtle defects that are missed with(More)
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