1. Is there a general neural process for how the brain represents objects in working memory, regardless if they are evoked through vision or language? We find evidence for theta-gamma phase-amplitude coupling as one potential signal.
2. How do we represent sequences of states, bound to the same object (as opposed to sequences of distinct objects)? Do these share a common underlying process? Again, we find evidence theta-gamma phase-amplitude coupling supports both!
3. How does similarity structure our knowledge of labels and concepts? We find that people prefer similar labels referring to similar things, overriding other biases like sound symbolism.