16 male Wistar mature rats were treated daily with cannabis extract (20 mg/kg tetrahydrocannabinol) for 3 mo. After a 1- to 4-mo drug-free period, residual effects on a variety of behaviors were studied and compared with behaviors of 16 matched controls who received a vehicle. No residual effects were found in learning of an 8-arm radial maze task, nor on a differential reinforcement of low-rate responding (DRL-20) task, nor in open field activity. Two-way shuttle box avoidance learning was facilitated by previous cannabis treatment, since cannabis-treated Ss exhibited shorter mean latencies to avoid footshock than controls. Findings indicate greater vulnerability of immature organisms (previous studies) than mature organisms (the present study) to long-term effects of chronic cannabis administration.

http://www.erowid.org/plants/cannabi...abstract.shtml
beachguy in thongs Reviewed by beachguy in thongs on . goverment vs. stoners ok...so i was watching this commercial on how pot is bad...its about this kid whos friends told him to smoke pot, and then they told him to put his fist in his mouth...and he cant get it out blah blah blah...and then hes all "i dont want to follow my friends pressure anymore" then i came upon an understanding...the goverment is pressuring the children of the nations...they tell them to not smoke pot, and in doing that, you will be a better person...they are pressuring them to not smoke pot, Rating: 5