A Pattern Stimulus for Optimal Response from the Retina
The importance of edges and sharp intensity contours in visual stimuli has led to great popularity for the checkerboard pattern stimulus since SPEHL-MAN (1965) reported a bigger response from a flashed checkerboard pattern than from a plain flash. Other patterns have been compared with it but is generally acknowledged to be the most effective type of stimulus for producing a large evoked response (White, 1969; Van Der Tweel & Spek-Reijse 1973). In clinical applications, and particularly where threshold detection may be involved, this is clearly an advantage.
KeywordsStimulus Pattern Checkerboard Pattern Check Size Normal Visual Field Luminance Response
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- Eason, R.G., White, C.T. & Bartlett, N. Effects of checkerboard pattern stimulations on evoked cortical responses in relation to check size and visual field. Psychon. Sci, 21, 113–115 (1970).Google Scholar
- Harter, M.R. & Suitt, CD. Visually evoked cortical responses and pattern vision in the infant: a longitudinal study. Psychon. Sci., 18, 235–237 (1970).Google Scholar
- Regan, D. In: Evoked potentials in psychology, sensory physiology and clinical medicine. Chapman and Hall, London. (1972).Google Scholar
- Spekreijse, H., Van Der Tweel, L.H. & Zuidema, Th. Contrast evoked responses in man. Vision Res., 13, 1577-1501.Google Scholar
- Van Der Tweel, L.H. & Spekreijse, H. Psychophysics and electro-physiology of a evoked by changes in spatial brightness contrast. Proc. 7th. Int. Symp. Iscerg, Instanbul 1-12 (1969).Google Scholar
- Van Der Tweel, L.H. & Spekreijse, H. Psychophysics and electro-physiology of a rod-achromat. Proc 10th Int. Symp. Iscerg, Los Angeles, 163-174 (1972).Google Scholar