Abstract
Pulse-duration threshold functions were determined for spectral increments in the region of the Sloan notch (580nm) as well as for 440 and 640nm and white increments flashed on a spatially coincident white background. While increments of 440 and 640nm elicited traditional pulse-duration functions with decreasing thresholds as the duration increased, functions obtained with 580nm and white increments manifested a minima at about 50ms. These data support the notion that stimuli in the region of Sloan's notch can be detected by an achromatic mechanism that may integrate sub-threshold ON and OFF responses, thereby maximizing detection sensitivity. Copyright (C) 2000 The College of Optometrists.
| Original language | English |
|---|---|
| Pages (from-to) | 387-390 |
| Number of pages | 4 |
| Journal | Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) |
| Volume | 20 |
| Issue number | 5 |
| DOIs | |
| State | Published - Sep 2000 |
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