A summary of rod and cone TCSFs and two-pulse summation studies
Study Receptor
type
Method Adaptation
level
a
Spatial extent Surround Retinal
locus
Pulse duration
(ms)
Hess and Nordby (1986) Rod TCSF 0.003–130 ST 10 · 15 (0.3 cpd
grating)
N/A 4 –5
Nygaard and Frumkes (1985) Rod TCSF 0.025–0.4 ST 2 No 7
Smith (1973) Rod TCSF 0.005–50 ST 7 (0.3 cpd grating) N/A 7
van den Berg and Spekreijse
(1977)
Rod TCSF 0.13 ST 5 No 10
de Lange (1958) Cone TCSF 4.3–430 PT 2 Yes Fovea
Keesey (1970) Cone TCSF 26–260 PT 1 Yes Fovea
Kelly (1959) Cone TCSF 1000 PT 2 Yes Fovea
Roufs (1972) Cone TCSF 2–525 PT 1 No Fovea
Swanson et al. (1987) Cone TCSF 0.9–900 PT 2 No Fovea
van der Gon/van der Tweel
(1961)
Cone TCSF 2–200 PT 0.37 No Fovea
van Nes et al. (1967) Cone TCSF 0.85–850 PT 0.64 cpd grating N/A Fovea
Burr and Morrone (1993) Cone 2 Pulse 163 PT 6.25 (1 cpd grating) N/A Fovea 8
Herrick (1972) Cone 2 Pulse 5.0–210 PT 1.1 No Fovea 5
Ikeda (1965) Cone 2 Pulse 61.2 & 328 PT 0.5 Yes Fovea 12.5
Meijer et al. (1978) Cone 2 Pulse 120 PT 1.6 No 3.5 10
Roufs (1973) Cone 2 Pulse 1–120 PT 1 No Fovea 2–3
Shinomori and Werner (2003) Cone 2 Pulse 49 PT 2.26 (Gaussian
patch)
N/A Fovea 1.2
Uchikawa and Yoshizawa
(1993)
Cone 2 Pulse 10 PT 1.5 No Fovea 10
Uetsuki and Ikeda (1970) Cone 2 Pulse 1–300 PT 0.5 Yes Fovea 10