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. Author manuscript; available in PMC: 2009 Nov 1.
Published in final edited form as: Vision Res. 2008 May 19;48(26):2593–2598. doi: 10.1016/j.visres.2008.04.003

Figure 1.

Figure 1

Temporal profiles of the stimuli used for the temporal contrast sensitivity (Panel A) and 2-pulse measurements (Panels B and C). Panel A gives an example of a 9 Hz periodic sinusoidal cone signal modulated within a 1 sec raised cosine envelope (constant time-averaged luminance) that alternated with a 1 sec steady field. Panel B shows a pair of 4 ms incremental pulses separated by a 70 ms stimulus onset asynchrony (SOA). The SOA was defined as the time (ms) between pulse onsets. Panel C shows an increment-decrement pulse combination separated by a 70 ms SOA.