Aggression cannabis

Three hypothesized social and environmental consequences of cannabis use have received attention the role of marijuana in enhancing interpersonal skills, the effect of cannabis on aggression and violence, and the role of marijuana use in what has been called the amotivational syndrome. 

Marijuana has not been shown to enhance social skills or to induce aggression or violence. The data on cannabis causing an amotivational syndrome are mixed. Both preexisting personality characteristics and drug effects probably account for what has been labeled the amotivational syndrome. 

Abel., E.E. (1975) Cannabis and aggression in animals, Behav Biol, 14 1-20. 

Cannabis differs from opiates, amphetamines, and cocaine in many respects. First, its toxicity is very low. Also, because its action is sedative, its long-term use produces lethargy, apathy, and passiveness. By contrast, many other drugs of abuse, especially the stimulants, such as cocaine and amphetamines or the LSD-type hallucinogens, induce aggressiveness and wakefulness, respectively. 

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