PURPOSE: To reduce the load of experiment and data analysis to be imposed on an experimenter by mounting a hearing stimulation data control means dealing with hearing stimulation medium data and performing the mixing control thereof and a sight stimulation data control means dealing with sight stimulation medium data to perform the control thereof.

CONSTITUTION: A hearing data presenting part 11 converts the hearing stimulation medium data 121 outputted from a hearing stimulation data control part 12 to auditory stimulation to present the same to an examinee. A control part 12 uses the signal 1311 outputted from an experiment procedure control part 13 to input hearing stimulation medium data 141, 161 from a heating stimulation medium data memory part 14 and sight/auditory stimulation medium data memory part 16 and mixes said data is there are a plurality of data and outputs the data to the hearing stimulation presenting part 11 when a hearing stimulation medium data presentation start signal 1312 is outputted from the control part 13. A sight stimulation presenting part 18 converts the sight stimulation data 191 outputted from a sight stimulation presenting position control part 19 to sight stimulation to present the same to the examinee. A sight stimulation data control part 20 similarly outputs sight stimulation medium data 201 to the sight stimulation presenting position control part 19.