Islands -

Some researchers suggest the problem isn't grammar, but .

Extracting from a subject might simply be too mentally taxing for the brain to process in real-time. Exceptions and "Parasitic" Gaps Islands

Subjects usually provide "old" information (the background). Trying to pull a "new" focus out of a backgrounded subject creates a mental clash. Some researchers suggest the problem isn't grammar, but

Once a subject moves to its final position, its internal structure is "frozen" and cannot be accessed. Trying to pull a "new" focus out of

Many generative grammarians argue that islands are a result of the of human language.

Modern theories suggest certain phrases are "phases" that become invisible to the rest of the sentence once completed. 2. The Information Structure View

"*Who did [a picture of ___] hang on the wall?" (The phrase is the subject). Why Do Islands Exist?