Table 3.

Regional Gray Matter Perfusion (in Institutional Units As Described in Methods)

PLD (ms)	Region	nsLD N = 19	ALC N = 29	nsALC N = 10	sALC N = 19	Group contrast
1,500	Left-frontal	360 ± 82	319 ± 74	360 ± 55	297 ± 75	sALC ≪ nsALC, nsLD
	Right-frontal	381 ± 107	326 ± 90	374 ± 82	301 ± 86	sALC ≪ nsALC, nsLD
	Left-parietal	371 ± 64	336 ± 77	362 ± 90	322 ± 67	sALC ≪ nsLD; sALC<nsALC
	Right-parietal	381 ± 81	353 ± 79	385 ± 84	337 ± 74	sALC ≪ nsLD; sALC<nsALC
1,200	Left-frontal	440 ± 72	397 ± 103	429 ± 98	380 ± 104	sALC ≪ nsLD; sALC<nsALC
	Right-frontal	457 ± 99	408 ± 111	439 ± 120	392 ± 106	sALC ≪ nsLD; sALC<nsALC
	Left-parietal	445 ± 81	399 ± 97	387 ± 113	405 ± 90	sALC, nsALC<nsLD
	Right-parietal	442 ± 88	406 ± 83	407 ± 97	406 ± 78	sALC, nsALC<nsLD

PLD, postlabeling delay (time between tagging and excitation pulse); nsLD, nonsmoking light drinker, ALC, smoking or nonsmoking 1-week-abstinent alcohol-dependent individuals.

Contrasts between sALC, nsALC, and nsALC: “<”: p<0.05; “ ≪ ”: p<0.01.