THE DOMAIN OF SUPERVISORY PROCESSES AND TEMPORAL ORGANIZATION OF BEHAVIOR

The possibility that the supervisory system of Norman & Shallice (1986 ) can be fractionated into different subprocesses is discussed. It is argued that confronting a novel situation effectively requires a varie ty of different types of process. It is then argued that evidence of s eparability of different processes may be obtained by the observation of very low correlations across patients on more than one measure on e ach of which frontal patients show a performance deficit. Examples of this are provided by examining the Hayling sentence completion and the Brixton spatial anticipation tasks. Finally, differential localizatio n of the subprocesses and hence the conclusion that they are separable is discussed with respect to the localization of monitoring and verif ication processes in memory.