Table 3. Linear regression statistics for the analysis of correlations vs. cell-pair distance.

	Statistics of layer 2/3 correlations		Statistics of layer 4 correlations
Correlations	Slope (p-value)	${\mathrm{R}}^2$ Value	Slope (p-value)	${\mathrm{R}}^2$ Value
Proposed Signal Corr.	$-\mathrm{𝟗}\times {\mathrm{𝟏𝟎}}^{-\mathrm{𝟓}}$ ($p=0.002$)	0.012	$-\mathrm{𝟏}\times {\mathrm{𝟏𝟎}}^{-\mathrm{𝟒}}$ ($p=3\times {10}^{-6}$)	0.023
Pearson Signal Corr.	$-5\times {10}^{-5}$ ($p=0.02$)	0.007	$-3\times {10}^{-5}$ ($p=0.02$)	0.005
Proposed Noise Corr.	$-\mathrm{𝟏}\times {\mathrm{𝟏𝟎}}^{-\mathrm{𝟒}}$ ($p=0.005$)	0.010	$-\mathrm{𝟓}\times {\mathrm{𝟏𝟎}}^{-\mathrm{𝟓}}$ ($p=0.06$)	0.004
Pearson Noise Corr.	$-4\times {10}^{-5}$ ($p=0.1$)	0.003	$-5\times {10}^{-5}$ ($p=0.02$)	0.005