Abstract

The temporal response of cone inputs to macaque retinal ganglion cells were compared with cone-specific sinusoidal modulation used to isolate each cone type. For all cell types of the parvocellular (PC) pathway, temporal responsivity was similar for short (S)-, middle (M)-, and long (L)-wavelength-sensitive cone inputs, apart from small latency differences between inputs to center and surround. The temporal response resembled that expected from receptor physiology. Responses of cells of the magnocellular pathway to M- or L-cone modulation showed more complex properties indicative of postreceptoral processing. Human psychophysical temporal-sensitivity functions were acquired with S-cone modulation under conditions similar to those for the physiological measurements. Ratios of psychophysical to physiological data from S-cone cells (the only cells that respond to this stimulus) yielded an estimate of the central filter acting upon PC-pathway signals. The filter characteristic could be described by a four-stage low-pass filter with corner frequency 3–5 Hz.

© 1995 Optical Society of America

Luminance and chromatic modulation sensitivity of macaque ganglion cells and human observers

Barry B. Lee, Joel Pokorny, Vivianne C. Smith, Paul R. Martin, and Arne Valbergt
J. Opt. Soc. Am. A 7(12) 2223-2236 (1990)

Sensitivity of macaque retinal ganglion cells and human observers to combined luminance and chromatic temporal modulation

J. Kremers, B. B. Lee, and P. K. Kaiser
J. Opt. Soc. Am. A 9(9) 1477-1485 (1992)

Physiological mechanisms underlying psychophysical sensitivity to combined luminance and chromatic modulation

B. B. Lee, P. R. Martin, A. Valberg, and J. Kremers
J. Opt. Soc. Am. A 10(6) 1403-1412 (1993)

Mechanisms subserving temporal modulation sensitivity in silent-cone substitution

Vivianne C. Smith, Joel Pokorny, Monica Davis, and Tsaiyao Yeh
J. Opt. Soc. Am. A 12(2) 241-249 (1995)

Psychophysical and physiological responses to gratings with luminance and chromatic components of different spatial frequencies

Bonnie Cooper, Hao Sun, and Barry B. Lee
J. Opt. Soc. Am. A 29(2) A314-A323 (2012)