Declining vision may cause the contrast between colours to be less noticeable, which can also impact depth perception. This is why high contrast colours can assist in helping residents to define objects and levels. Colour and depth perception become greater issues when designing spaces pa Colour and pattern should also be carefully considered when exploring flooring choices. Particular attention should be given to pattern as residents with dementia often perceive patterns and motifs as actual objects. For example, a carpet with a pattern of white specks on a dark background may be distracting to a person with dementia. They may perceive the specks to be bits of tissue and therefore try to ‘pick’ them up off the carpet. This also applies to strong contrasting bold and prominent patterns including patterns with large motifs and small patterns which are also to be avoided.
In our current state of evolution, vision is the primary source for all our experiences. (Current research has reported that approximately 80% of what we assimilate through the senses, is visual.) Our nervous system requires input and stimulation. (Consider the effects of solitary confinement in jails.) With respect to visual input, we become bored in the absence of a variety of colours and shapes. Consequently, colour addresses one of our basic neurological needs for stimulation which is a significant factor towards maintaining the health and wellbeing of residents.