McKeefry, Declan J.Murray, I.J.Kulikowski, J.J.2009-10-272009-10-272001M.Keefry, D.J., Murray, I.J. and Kulikowski, D.J. (2001). Red-green and blue-yellow mechanisms are matched in sensitivity for temporal and spatial modulation. Vision Research. Vol. 41, No. 2, pp. 245-255.http://hdl.handle.net/10454/3771NoThe spatial and temporal properties of human colour vision are examined using isoluminant, red¿green and blue¿yellow tritanopic gratings. Chromatic sensitivity is found to be low-pass as a function of both spatial and temporal frequency along all the chromatic axes investigated, including the tritanopic confusion lines employed to examine the properties of the S-cone driven mechanism. Comparison of sensitivity to on-off and contrast reversing stimuli indicates that transient mechanisms contribute to the detection of red¿green patterns but that the detection of S-cone specific patterns is governed by sustained mechanisms. By compensating for transient contributions to red¿green sensitivity, it is shown that sensitivity of chromatic mechanisms dominated by L- and M-cone input are closely matched to those with S-cone input.enColourIsoluminanceTritanopicCone-contrast sensitivityArticlehttps://doi.org/10.1016/S0042-6989(00)00247-9