Perceptual Coherence : Hearing and Seeing

34 Perceptual Coherence
Figure 2.2. The receptive field for a cell. The gray area represents the baseline firing
rate; the white area represents the excitation region; and the black area is the inhibition
region. In (A), the response is portrayed in terms of the stimulus onset at
time 0; in (B), the receptive field is portrayed in terms of the spike. Here, the excitation
and inhibition areas can be thought of as features that trigger (or inhibit) a spike.
Table 2.3 Probability of Firing Based on Table 2.2
Time Before Spike (ms)
Frequency 80 60 40 20 0 (Spike)
F 1 .61 .56 .50 .50 .50
F 2 .50 .28 .33 0 .44
F 3 .56 .44 .61 1.00 .67
F 4 .44 .44 .50 .44 .61