CNN CNN Special Report April 12, 2015 01:25:00
Too analytical. >> you can get paranoid and have disorganized thinking and disoriented. it can lead to panic attacks or anxiety attacks in people. >> how do you know when you have done too much? >> simple tasks become frustrating like mixing paint and then sort of get into this state of dah, you know. >> and why that happens is what columbia university neuroscientist is investigating. research subjects smoke marijuana and take a variety of cognitive tests. >> disruptions in memory and cognitive functioning. they're temporary but pretty pronounced and they are clear. >> it's slowly becoming cle...