Self Paralysis

[bruceschild]

Once while home alone after smoking small amounts of weed I was lying in bed wondering what it would be like to be paralyzed. The more I though about the stranger it sounded. I started telling myself I couldn't move my legs, the more I told myself (in my head) I couldn't move the real it seemed and when I tried to move my legs I couldn't. It lasted about a minute and then I was able to move them again after telling my brain that I could send messages to my legs and then they could move and then they did. Is it possible that if you concentrate hard you can turn parts of your body on and off with your mind. I have since done this twice, once with weed and once without. Any thoughts???