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Comparisons between different fitting functions. Functions fitted to total cortical LGI for HC ages 18 – 60.
| Mathematical Function | a 0 | b 0 | c 0 | d 0 | Sum of Squared Differences |
|---|---|---|---|---|---|
| a + bX | 3.004 | −3.302×10−4 | - | - | 0.036 |
| a + bXc | 3.805 | −0.816 | −6.829×10−4 | - | 0.037 |
| a + b(X + c)d | 2.994 | −1 | 1.000×10−3 | 1.000×10−3 | 0.036 |
| a + bX+c | 2.991 | −0.525 | 8.243×10−4 | - | 0.036 |
| a + b * log(X + c) | 3.040 | −0.014 | 0.004 | - | 0.035 |
