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. 1996 Nov 1;16(21):6945–6964. doi: 10.1523/JNEUROSCI.16-21-06945.1996

Fig. 4.

Fig. 4.

Clustering according to direction of motion in adult cat area 18. The results presented here were obtained from an adult cat. A–F illustrate the results in a format identical to that of Figure 3. The presented maps were obtained from vertical gratings moving left and right. The whole range of gray levels represents a fractional change of 2 × 10−3 inA, B, D, 0.9 × 10−3 in C, and 1 × 10−3 in E and F(wavelength 630 ± 10 nm). The ratio of the amplitudes here was 3.5, and the average S/N of the direction maps was 4.8 ± 0.9. Scale bar, 1 mm.