Fig. 4.

Temporal weighting functions of the same magnocellular neuron (Figs. 2, 3) for receptive field center (thick lines) and surround (thin lines). Each data point is for a range of times between stimulus and response (sampled at the stimulus update rate, or 14.8 msec; short tick marks). The data points marked with caretscorrespond to responses during the first bin (in the range 0–14.8 msec). Time labels (long tick marks) are interpolated with respect to the data points (short tick marks), as specified in Materials and Methods. Note that the M-cone response is both weaker and somewhat slower than the L-cone response. All responses are in spikes/(sec · C), where C is the cone contrast of the stimulus.