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INTRODUCTION At different times and at different places many plants have been domesticated, and the development of agriculture was an intensification by man of his food extractive process. Simultaneous to the agricultural development, the selection of psychotropic plants has always been one of the most tempting and determined activities of mankind in its history. Behaviorally active drugs have captured and control human behaviour in susceptible individuals. Nowadays the most consumed plants worldwide are legal ones such as coffee and tobacco and illegal ones such as cocaine, opium and cannabis. And little is known about
INTRODUCTION At different places many plants have been domesticated, and the development of agriculture was an intensification by man of his food extractive process. Simultaneous to the agricultural development, the selection of psychotropic plants has always been one of the most tempting and determined activities of mankind in its history. Behaviorally active drugs have captured and control human behavior in susceptible individuals. Nowadays the most consumed plants worldwide are legal ones such as coffee and tobacco and illegal ones such as cocaine, opium and cannabis. And little is known about