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may increase cerebral blood flow, promoting creative thinking in the frontal lobe.
Considering this, marijuana may promote creativity as it increases frontal lobe activity, primarily by increasing cerebral blood flow (CBF) to this area. In studies done at the Instituto Nacional de PsiquiatrÃa Ramón de la Fuente, Mexico and John Hopkins University, it was found that subjects with high creative performance showed greater CBF activity in various locations in the brain associated with the frontal lobe. Cerebral blood flow is the amount of blood in the brain at any given time, and higher amounts in specific areas of the brain indicate higher activity of those areas. This is because neurons in the brain require energy when being used and they receive this energy from the glucose and oxygen supplied by blood. Experiments by Mathew and Wilson (1992) showed CBF tended to reach a maximum effect in the frontal lobe after thirty minutes of cannabis consumption. More recent research done by O’Leary et al in 2000 and 2007 confirm that marijuana increases normalized regional CBF to various parts of the frontal lobe, including the orbital frontal cortex, anterior cingulate cortex and the insular cortex. O’Leary’s work juxtaposed to Flaherty’s observations suggests that marijuana’s role in stimulating frontal lobe activity has the correlative effect of promoting the creative drive and divergent thinking characteristic of the creative process.https://www.ocf.berkeley.edu/~issues/articles/18.2_Talise_J_Marijuana_1.html