Table 5. Correlations of PER2 expression in the cortex.

Region	ACAv	AIp	EPd	PIR2	ENTls	ENTld
SCN	0.43	−0.11	−0.07	−0.56	−0.07	−0.06
ACAv		0.38	0.46	0.11	0.50	0.55
AIp			0.86	0.67	0.88	0.84
EPd				0.67	0.86	0.84
PIR2					0.68	0.64
ENTls						0.91

Pearson r values comparing regions of the cortex and the SCN across the 24-h day. Values in bold are statistically significant (p<0.05).