Table 4.

Coordinates of local maxima for brain regions in which activation during finger motor performance decreased from new learning to immediate retesting after an 8 h retention interval of sleep and nocturnal wakefulness (supplementary experiments; n = 10)

Brain region	Coordinates of peak activation	Z
Areas in which activation decreased more in the sleep than in the wake condition
Supplementary motor cortex
R BA 6	6, 18, 68	3.53
R BA 6	6, -10, 76	2.51
Lateral premotor cortex
R BA 6	34, 18, 36	3.07
Temporal cortex
R BA 37	58, -44, 0	2.69
R BA 37	52, -58, -14	2.67
L BA 37	-58, -62, -8	3.15
L BA 37	-52, -40, 0	3.48
Parietal cortex
R BA 7 (precuneus)	20, -52, 50	2.58
Subcortical activations
R globus pallidus	32, -6, 0	3.30
L caudate nucleus	-24, -32, 0	2.85
L cerebellum	-32, -50, -24	3.23
L cerebellum	-22, -62, -48	2.85
Areas in which activation decreased more in the wake than in the sleep condition
No suprathreshold clusters
Areas in which activation decreased more in the posttraining sleep than wake condition
across both the 48 h and the 8 h retention interval
Prefrontal cortex
L BA 9	-14, 38, 26	3.46
Lateral premotor cortex
R BA 6	34, 4, 42	4.28

All results are significant at p < 0.005, uncorrected. R, Right hemisphere; L, left hemisphere; BA, Brodmann area.