Table 3.

Correlations among the four cognitive domains in the whole sample (MDD+HC).

	Executive function	Attention	Processing speed	Memory
Executive function	–	.652**	.540**	.657**
Attention	–	–	.583**	.599**
Processing speed	–	–	–	.540**
Memory	–	–	–	–

**P < 0.01.

HC,healthy control; MDD,major depressive disorder.