@jamie_albert_sheppard:

Jamie Sheppard :

Tice, Bratslavsky & Baumeister (2001). They put people in a bad mood, then gave them time to practise for a test, with fun stuff to do instead. The ones in a bad mood put it off. But when they were told their mood was frozen and couldn't change, the extra procrastination disappeared. If messing about can't cheer you up, you don't bother. So we put things off to fix how we feel, not because we're lazy.