Restricted Activity
In some situations, you may be unable to take all of your actions (for example, when you are paralyzed by a hold person spell or are acting in the surprise round of combat). The condition or ability that restricts your actions explains which actions you can or can’t take. Regardless, you can’t take a full action if you’re unable to take a standard action, a move action, and a swift action.
Source
Core Rulebook pg. 244