All Outputs (6)

The loss of the PDE6 deactivating enzyme, RGS9, results in precocious light adaptation at low light levels (2008)
Journal Article
Stockman, A., Smithson, H., Webster, A., Holder, G., Rana, N., Ripamonti, C., & Sharpe, L. (2008). The loss of the PDE6 deactivating enzyme, RGS9, results in precocious light adaptation at low light levels. Journal of Vision, 8(1), https://doi.org/10.1167/8.1.10

The GTPase activating protein, RGS9-1, is vital for the deactivation and regulation of the phototransduction cascade (C. K. Chen et al., 2000; C. W. Cowan, R. N. Fariss, I. Sokal, K. Palczewski, & T. G. Wensel, 1998; W. He, C. W. Cowan, & T. G. Wense... Read More about The loss of the PDE6 deactivating enzyme, RGS9, results in precocious light adaptation at low light levels.

Specificity of cone inputs to macaque retinal ganglion cells (2006)
Journal Article
Sun, H., Smithson, H., Zaidi, Q., & Lee, B. (2006). Specificity of cone inputs to macaque retinal ganglion cells. Journal of Neurophysiology, 95(2), 837-849. https://doi.org/10.1152/jn.00714.2005

The specificity of cone inputs to ganglion cells has implications for the development of retinal connections and the nature of information transmitted to higher areas of the brain. We introduce a rapid and precise method for measuring signs and magni... Read More about Specificity of cone inputs to macaque retinal ganglion cells.

Do masks terminate the icon? (2006)
Journal Article
Smithson, H., & Mollon, J. (2006). Do masks terminate the icon?. Quarterly Journal of Experimental Psychology, 59(1), 150-160. https://doi.org/10.1080/17470210500269345

Iconic memory is operationally defined by part-report experiments (Sperling, 1960). If a mask is presented after the target, the mask is thought to be superposed on the target in the iconic representation, or to displace it from the representation. B... Read More about Do masks terminate the icon?.

Sensory, computational and cognitive components of human colour constancy (2005)
Journal Article
Smithson, H. (2005). Sensory, computational and cognitive components of human colour constancy. Philosophical Transactions of the Royal Society B: Biological Sciences, 360(1458), 1329-1346. https://doi.org/10.1098/rstb.2005.1633

When the illumination on a scene changes, so do the visual signals elicited by that scene. In spite of these changes, the objects within a scene tend to remain constant in their apparent colour. We start this review by discussing the psychophysical p... Read More about Sensory, computational and cognitive components of human colour constancy.

Is the S-opponent chromatic sub-system sluggish? (2004)
Journal Article
Smithson, H., & Mollon, J. (2004). Is the S-opponent chromatic sub-system sluggish?. Vision Research, 44(25), 2919-2929. https://doi.org/10.1016/j.visres.2004.06.022

The S-opponent pathway has a reputation for being sluggish relative to the L/M-opponent pathway. Cottaris and De Valois [Nature 395 (1998) 896] claim that S-opponent signals are available in Macaque V1 only after 96-135 ms whereas L/M-opponent signal... Read More about Is the S-opponent chromatic sub-system sluggish?.

Colour constancy in context: Roles for local adaptation and levels of reference (2004)
Journal Article
Smithson, H., & Zaidi, Q. (2004). Colour constancy in context: Roles for local adaptation and levels of reference. Journal of Vision, 4(9), 693-710. https://doi.org/10.1167/4.9.3

By determining the locations of boundaries between colour categories, we measured changes in the colour appearance of test-reflectances as a function of the simulated illumination. Test-reflectances were displayed against a variegated background of r... Read More about Colour constancy in context: Roles for local adaptation and levels of reference.