Abstract:
Two recent studies reported that various that various posions effecting the central nervous system do not elicit conditioned taste eversion (CT.). To test the validity of this statement cobra, Krait and scorpion neurotoxins and viper,s haemorrhagic venoms were used as unconditioned stimulus (US) in CTA paradigm and compared with lithium chloride , a slandered stimulus for producing taste version. The results indicate 10 and 7.5 ug of cobra and 20, and 15 ug of krait venom produce clear cut aversion in mice. On established in rats by associating saccharin drinking with subsequent poisoning by RUSSELL,s viper venom is reduced to 55% by oretherapetised injected of polyantiyenin ,, groups of the rats anaesthetised with sodium Nembutal and subsequently injected with neurotoxic scorpion venom , the anaesthetisia does not prevent CTA anagram formation . Even antihistamine adrenaline fails to decrees efficiency of Echis venom induced CTA.
