An image is a mental representation or recollection of a sensory experience. This mental representation is a structure in our mind such as an idea or image that stands for something else, such as an external object or thing sensed in the past or future, not in the present. We think both in images and words. Visual imagery consists of visual representations created by the brain after the original stimulus is no longer present. Using images gives us the power of visualization and helps us think about and solve problems. Neuroscientists have found that the brain is activated in the same way by imagining a task as it is by performing the same task.
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