Table 4.
Correlations between input and response parameters
| Input | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Response | (EPN–ENS)/EPN | (HPN–HNS)/HPN | (RPN–RNS)/RPN | EPN, bits s−1 | ENS, bits s−1 | HPN, bits s−1 | HNS, bits s−1 | RPN, bits s−1 | RNS, bits s−1 |
| Mean amplitude | −0.76 (10–6) for average IR change | −0.91 (10–5) | −0.64 (10–5) | −0.65 (10–5) | 0.02 (0.9) | 0.22 (0.17) | 0.41 (0.01) | ||
| Mean contrast | −0.19 (0.23) for average IR change | 0.50 (10–2) | 0.25 (0.12) | −0.27 (0.1) | −0.07 (0.65) | 0.05 (0.8) | −0.04 (0.8) | ||
| EPN−ENS, bits s–1 | 0.74 (10–6) | 0.84 (10–6) | 0.65 (10–5) | ||||||
| ФPN−ФNS, rad | 0.68 (10–6) | 0.73 (10–6) | 0.51 (10–3) | ||||||
The values represent Spearman’s rank order correlation coefficients; numbers in parentheses are P values. EPN and ENS, entropy of natural sequences (NS) and pink noise (PN), respectively; HPN and HNS, coherence of NS and PN, respectively; RPN and RNS, probability density of NS and PN, respectively.