In general, darker blues and greens are thought to be calming and yellows and oranges and reds exciting. Much of this comes from the same kind of learned associations I described in my last answer. Some may be in our genes, as described in my lecture, with the default mode of the brain being to calming blues and greens and exciting responses to reds. That said, individual preference is important, and more studies need to be done to answer this question.
In my book Healing Spaces, I describe studies, which a paint company did using rooms bathed in different colors of light - yellow, red and blue - where they found effects on people's behaviors and moods. This is different than paint color on the walls, where more studies are needed..
Thank you all for your very intresting questions - you were a great audience here and at the Fox Theater!
Thank you for joining our live chat. Remember there is another lecture Wednesday with Dr. David Raichlen and he will answer readers' questions a week from today. Check azstarnet.com for more information.