Using the Bubbles technique, this study recreated the information that patients used to discriminate emotional expressions. Not only did schizophrenia patients use different facial features but they also utilized different spatial frequencies. Especially this study presented spatial frequency information across all spatial frequency bands simultaneously instead of one spatial frequency bandwidth at a time. In this sense, the current study differs from previous studies that manipulated spatial frequency information in schizophrenia. By presenting all spatial frequency bandwidths simultaneously, this study was able to identify which spatial frequency information is more critical at what facial regions. Schizophrenia patients showed an atypical usage of visual information, and this atypical strategy was more prominent in high-spatial frequency bandwidth. Previous studies on face processing suggested that schizophrenia patients have more difficulty processing configural facial information than featural face information. Considering the role of high-spatial frequency information in featural face processing, the current finding demonstrates that schizophrenia have abnormal featural processing when judging emotional expression of faces.