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Psychological effects can be greatly influential for the foodservice industry, especially in menu design. Presenting dish pictures is a common practice on menus, but because of the psychological contagion effect, this practice could decrease consumers’ evaluations of dishes, sometimes without the awareness of consumers, let alone restaurant managers. This research aims to explore the potential threats of a psychological contagion by considering how dishes that make consumers feel uncomfortable can affect their evaluations of dishes located nearby. It further examines how a psychological contagion can be attenuated when a visual boundary is placed between a discomfiting dish and a target dish. The results demonstrate the occurrence of psychological contagion in menu design. The interaction between psychological contagions and visual boundaries suggest that the psychological contagion can be attenuated through visual boundaries

How Can Psychological Contagion Effect be Attenuated? The Role of Boundary Effect on Menu Design