Fig. (3) Effect of acute treatment with fluoxetine alone (20 mg/kg i.p. n=4) or vehicle alone (NaCl 0.9% 2ml/kg i.p., n=4, control group) upon voltammetric 5-HT levels or Tyr-tub expression in rat whole brain. Both parameters were significantly increased: F_1,8= 8.202 p<0.05) and F_1,7= 7.727 p<0.05, respectively.Data are expressed as % of control (vehicle), mean± S.D. *p<0.05, Dunnett’s test.