Aphantasia: Why Some People Can't Picture Images Awake but Dream Vividly

Aphantasia, the inability to visualize mental images while awake, affects an estimated 2–5% of people, yet many still report vivid dreams. Researchers at the University of New South Wales and other institutions are exploring this paradox, which challenges assumptions about how imagination and dreaming are linked. Studies using questionnaires and brain imaging suggest that dreaming may rely on different neural pathways than voluntary visualization, possibly involving more automatic, bottom-up processes during sleep. This distinction matters because it reshapes our understanding of consciousness and memory, and could lead to new insights into conditions like PTSD, where intrusive imagery plays a key role. As scientists continue to investigate, the findings may help develop targeted therapies for those with imagery-related disorders and deepen our grasp of the mind’s inner life.