rich neapolitan bfjgyyrpxggbneiuedu interested learning studies using human subjects concerning humans reason existing domain knowledge learn something particular case example would interested study concerning learning causes data however would interested study human already learned causal structure reasons structure example human might know smoking causes lung cancer yellow teeth tuberculosis lung cancer cause dyspnea might test whether human realizes learn whether joe lung cancer informative learn whether teeth yellow informative learn whether tuberculosis interested studies involving reasoning causes studies concern reasoning existing domain knowledge learn something particular case thanks rich richard e neapolitan professor chair computer science dept northeastern illinois university 5500 n st louis chicago il 60625 httpwwwneiuedureneapolrenpag1htm wed 06 aug 2008 012913 0600 uai reasoning existing domain knowledge