Fig. 3.

Other D1/D5 agonists and the adenylyl cyclase stimulator forskolin also enhance early LTP. All drugs were applied for 5 min before the tetanus and washed out immediately after.Columns represent the results of post hocpaired t test after two-way ANOVA for repeated measurements (% of LTP after drug application minus % of LTP in control input on the same slice) for the baseline and four 5 min periods after the tetanus. The time of drug application is marked by the horizontal bar, and the moment of tetanus is indicated by the small arrow. F,p, and n values for each drug are listed in Results. Levels of significance:^○p < 0.1; *p < 0.05; **p < 0.01.