For the computer graphics software 3d image visualization pdf, see Mental Images. This article needs additional citations for verification.
Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. A mental image or mental picture is the representation in a person’s mind of the physical world outside that person.
It is an experience that, on most occasions, significantly resembles the experience of perceiving some object, event, or scene, but occurs when the relevant object, event, or scene is not actually present to the senses. Mental imagery can sometimes produce the same effects as would be produced by the behavior or experience imagined. However, the majority of philosophical and scientific investigations of the topic focus upon visual mental imagery. It has sometimes been assumed that, like humans, some types of animals are capable of experiencing mental images.
Due to the fundamentally introspective nature of the phenomenon, there is little to no evidence either for or against this view. Philosophers such as George Berkeley and David Hume, and early experimental psychologists such as Wilhelm Wundt and William James, understood ideas in general to be mental images.