tokens: 6 s ). Mice subjected to hypotensive episodes showed a significant decrease in latency time ( 178 +/- 156 s ) compared with those injected with saline , NTG + NIMO , or delayed NTG ( 580 +/- 81 s , 557 +/- 67 s , and 493 +/- 146 s , respectively ). A Kruskal - Wallis 1 - way analysis of variance indicated a significant difference among the 4 treatment groups ( H = 15 .