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There is substantial evidence that people with schizophrenia show alterations in several domains of visual processing, including deficits in face processing and a reduced face inversion effect compared to healthy controls. However, the mechanisms underlying this observation are not yet known. Eye movement studies have found that people with SCZ do not concentrate on the most informative regions for face identification (eg, the eyes). Consequently, people with SCZ may be less able to extract relevant information, suggesting a decrease in calculation efficiency. Previous research with non-face stimuli also suggests that SCZ is associated with increased levels of cortical internal noise. Moreover, both calculation efficiency and internal noise have been shown to be important mechanisms underlying face perception among healthy observers. The current study applies noise masking to upright and inverted faces to …