INDEX OF RECENT RESERACH PUBLICATIONS

Critical spatial frequencies involved in face and feature recognition. The Ohio Psychologist, 49, pp. 29-31 (2002)
Beighley, J., Yonkof, A., and Robbins, D.O.

Models of Laser Effects on Vision and Performance:
Immediate and Long Term Visual Performance Changes in the Nonhuman Primate -
in press

 

CURRENT RESEARCH INTERESTS:

VISUAL RECEPTIVE FIELDS - investigation of the RF organization and trigger features of visually responsive cells in the mesencephalon and diencephalon of the turtle. Interest is being directed towards the organization of these cells to stimulus wavelength and movement in an attempt to develop a neural model for information transfer.

NEURAL MECHANISMS FOR FACE RECOGNITION- the relationship between spatial channels within the human visual system and face recognition

FLASH BLINDNESS - psychological studies designed to compare the rate of bleaching and regeneration of visual pigments in humans and subhuman primates following exposure to intense monochromatic flashes. Differences in retinal pigmentation, receptor density and effectiveness of the optical pathway are also being examined in these different species.

RETINAL DAMAGE IN SUBHUMAN PRIMATES - determination of the maximum energy dosages (duration x energy density) permissible before permanent morphological and functional deficits can be identified. The degree and duration of visual acuity loss are being compared using different laser parameters (duration, energy, wavelength, spot size and retinal site) and different test parameters (background wavelengths, intensity and contrast).

COMPARISON OF VISUAL FUNCTIONING IN HUMAN AND SUBHUMAN PRIMATES - investigation of the similarities and differences in visual sensitivity (luminance, color and contrast) in rhesus and human.

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