Table 1.

Entropy of neural activity during working memory task in the Aβ and control groups.

	Aβ		Control
	Peak	Averaged	Peak	Averaged
Spike entropy	0.197 ± 0.012**	0.118 ± 0.003**	0.271 ± 0.008	0.206 ± 0.006
LFPtheta entropy	0.897 ± 0.014**	0.754 ± 0.017**	0.949 ± 0.011	0.792 ± 0.008
LFPgamma entropy	0.893 ± 0.013**	0.836 ± 0.010**	0.943 ± 0.008	0.855 ± 0.005

All entropy values in bit.

Data are shown as mean ± s.e.m.

^**P < 0.01 for tests of significant difference.