spiders on caffeine

dont know whether or not this has been posted before but here goes(or if its in the right forum,sure a mod will move if necessary)
these are results of toxicity tests done on spiders...what do you all think?
i think they relate well to effects these same substances have in humans,and what if other tests could be done to see the effect they have(like common anti-depressants/pain killers/even placebos....how will a placebo affect a spider if he doesnt know what its supposed to do?)

here is the link

www.coffee.co.uk...

Yeh ive seen this before the spider on caffine really borks his web up,and chloral hydrate is worse again.

Ive also come across spiders on '___'
Seems to have the opposite effect, enhanceing its web making abilitys.