I've always put advice (and Perl's Hook::LexWrap and other implementations) in a different bucket to aspect-oriented programming, with the idea that AOP is used

I've always put advice (and Perl's Hook::LexWrap and other implementations) in a different bucket to aspect-oriented programming, with the idea that AOP is used to build an application and advice is used to monkey-patch around a bug that isn't yet fixed upstream. But you're right, they're similar to some degree.