Table 2.

Statistical significance of evoked increases

Experimental prep	Firing rate	Spike count variance	Spike count covariance
Anesthetized, EB	$4.2\times {10}^{-17}$	$5.9\times {10}^{-14}$	$1.3\times {10}^{-66}$
Anesthetized, HX	$4.1\times {10}^{-31}$	$8.2\times {10}^{-27}$	$4.2\times {5.9}^{-33}$
Awake, EB	0.0376	0.0181	$2\times {10}^{-15}$
Awake, HX	0.154	0.0447	$1.5\times {10}^{-8}$

Determining statistical significance of evoked increases in spike count variance and covariance (population average after trial-averaging), reporting the $\mathrm{p}-$values for two-way t-tests assuming unequal variance (Figures 5A–5C). Ethyl Butyrate (EB), Hexanol (HX)