What is the underlying design pattern behind AOP?

Had this interesting question being asked today and the arguments varied from Proxy to Wrapper to Decorator.

Thoughts?

The short description of

• Proxy: "Provide a surrogate or placeholder for another object to control access to it".*
• Decorator: "Attach additional responsibilities to an object dynamically."*
• Adapter (Wrapper): "Convert the interface of a class into another interface clients expect."*

Based on this, to me AOP looks like (a solution to the problem solved by) Decorator rather than Proxy - and definitely not Adapter.

*From the GoF book.