It has been scientifically proven that marijuana usage affects the mental state of an individual. In the Netherlands usage of marijuana is tolerated and marijuana can be purchased and freely used. Research shows (Mehling, 2003, p. 15) that the use of marijuana causes the transportation of THC to the brain via the blood streams. Once in the brain, the THC compounds bind with the cannabinoids receptors of the nerve cells and alter their activities. These cannabinoid receptors are mostly found in the regions of the brain, which control memory, thought, sensation of pleasure, perception and concentration. Consequently, smoking Marijuana triggers a change in these sectors adversely affecting memory, concentration, thinking capacity and perception skills.

We wish to examine the effects of marijuana on brain activity when experiencing fear. The brain activity of each volunteer will be monitored by using an EEG; with the consequent data we hope to find a pattern which will support our theory and prove that there is a correlation between Marijuana usage and intensified brain activity. This leads to the following research question: “How does the use of marijuana effect brain activity when experiencing fear?”  

The final report of our group can be see here: research report Ksi