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The General Design of the Experiment
Size of the Test FlashSpatial Summation
39 other sections not shown
absorbed absorption spectra adapting light amplitude axis beam splitter bleached brightness constancy called Chapter color systems contains curve in Fig dark dark-adapted diagram discussed disk effect electrode example excitation excitatory facet fixation point Fourier fovea frequency of firing ganglion cells Hecht identical illuminated incident increases inhibition inhibitory input intensity distribution interaction isomerization large number lateral inhibition length lens light falling Limulus eye linear logarithmic look Mach bands match measured modulation monochromatic neural neurons nonlinearity object optic nerve output pattern perception physiological pigment molecules plane plotted in Fig present procedure produce proportion pupil quantal quantum receptive fields receptors reflected region represented result retina retinal image rhodopsin rods Rushton shown in Fig simple sine wave sine-wave spatial frequencies spectrum stimulus synapse test flash test spot threshold tion transfer function trichromatic units visual perception visual pigment visual system wavelength zero