Mental Imagery Visual Hallucinations. Visual hallucination is a condition where a person sees or visualizes something which does not actually exist. Some individuals are capable of deep levels of hypnosis in which they can have visual hallucinations of dreamlike clarity.
Some individuals are capable of deep levels of hypnosis in which they can have visual hallucinations of dreamlike clarity. Second and more importantly the example of closing one s eyes was an example of an active intended and voluntary act. While the existence of visual mental imagery in human cognition was vigorously debated for much of the late 20th century aptly named the imagery debate many convergent findings in neuroscience now support the idea that visual mental imagery is a genuine and useful form of mental representation in humans pearson kosslyn 2015.
Mental imagery is not necessarily visual.
The first extensive experimental study of the relationship of mental. Mental imagery is not necessarily visual. But mental imagery can also be passive and neither intended nor voluntary. I use the term mental imagery to cover visual auditory tactile olfactory etc.