Existence of Spatial-Alignment and Optical Illusions in the Built-Environment

Abstract

This paper is the outcome of studies of spatial-alignment and optical illusionary occurrences in the built environment. The authors carried out literature reviews on optical illusions as they affect humans, dogs and birds while they go about their daily activities. The methodology employed encompassed visual survey, review of journals, photographs and internet downloads. The android camera was used as a research instrument. Case studies conducted include the effects of spatial-alignment illusion on traffic along the Kaduna-Abuja expressway, around the Zuma Rock in Suleja; optical illusion on a dog attempting to eat a bone painted at the base of a white porcelain dish half-filled with water and an optical illusion on a bird observing itself on a tinted window pane in a residential building at Zango Shanu, Samaru, Zaria. After analysing the studies, the paper concludes that illusions affect the brains of both humans and animals alike.