Development and Validation of a Driving Simulator for Evaluating the Residual Effects of Drugs on Driving Performance - Sensitivity Analysis Using Zopiclone As a Positive Control

Inclusion Criteria: * Body mass index (BMI) ≥18.5 and \<25.0 kg/m\^2 at screening inspection * No visual impairment (enable to correct the vision with eyeglasses or contact lens) * Receive a prior explanation on the study, able to accept its content, and capable to provide voluntary written consent for participation in this study * Other protocol defined inclusion criteria could apply Exclusion Criteria: * History of drug and food allergy * Hypersensitivity to zopiclone * Inappropriate for enrollment in this study was judged by principal investigator or subinvestigator * Other protocol defined inclusion criteria could apply