Bar graphs showing maximum behavioural response (score per 30 min) including sniffing, rearing, face washing, wet dog shakes (wds), head scratching, grooming and locomotion following bilateral SN microinjection of 1 nmol of [Sar9,Met(O2)11]SP (n=8), [β-Ala8]NKA (4 – 10) (n=18) and senktide (n=13). Each bar represents the mean±s.e.mean of (n) rats. *P<0.05 and **P<0.01 when compared to vehicle values (n=18, not shown as close to zero values) with a Kruskal-Wallis test.