An actuator includes a lower housing member, an upper housing member ached to the lower one, and a cover member. The compounds bind to the 5-HT1A receptor . The floor allocation policy for multimedia to be allocated to the group of media servers is stored in a floor allocation policy portion 33 and control is made so as to synchronize the floor of the respective media by a floor allocation judgment portion 32. The subject invention also includes methods for performing an array assay. The first gamma characteristic includes a characteristic having the effect of suppressing a low luminance in comparison with the second gamma characteristic.