You reach for your phone because the moment before the first move is the most uncomfortable part of the whole task. Your phone ends that feeling as soon as you unlock it.
Here are three terms, so we mean the same thing. The trigger is the discomfort a task sets off in you. The way out is whatever you reach for in that moment. The relief is the drop in tension you feel afterwards.
Take an example. You open the quote for a client and see the empty price field. A price can be turned down. You feel that before you think it. Your hand is on your phone before you've decided anything. That's why you often notice only much later that you've just been scrolling: there was no decision for you to catch.
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