Brainteasers
[Cognitive] child development
[Computer and human] languages
Computer interfaces
Computer language fluency
Context-free languages
Error-correcting codes
Game theory
Games between programs
Hashing
History [of ideas about thinking]
Human generation of randomness
[Human] memory
[Identifying] similar words
Matrix memories
[Memory analogs with] numerical data
Neural network models
Pointer encoding [and memory]
Sleep
The brain
The future [of machine thinking]
[Underlying] structure of Mathematica