I have only one word for this & it's psychological category "retarded". Our brain is a processing but also protective mechanism for our organism as whole. Its true that if we are in the good mood our level of hormones will rise (including: serotonin, dopamine and adrenaline) which will also result in increased brain activity and our perception sensitivity & analytical cognitive activity of it will increase. Of course this can be triggered & by warm colour's up to the certain amount. Better case would be to trigger it with multi stimulation. In the morning after good night sleep and morning exercises do your favorite relaxation thing (anything that makes you feel happy) with a cup of sweat hot coffee & you are ready to go. Of course this mood can't last for long as our brain gets overwhelmed with this sudden increase of informations to process so in order to protect himself and organising as whole it reduces the sensitivity rounding the perception felling to what it consider normal. It works for all of ur senses like this. When some senses are not present it tries to compensate with putting more processesing to other one's. That's why for instance we tend to listen to the music in relaxed state with our eyes closed and giving our imagination a push being actually able to visualise performer or instrument better & it's placement in space (stage).