Vividness as the similarity between generated imagery and an internal model.
Brain and Cognition July 1, 2023 Sean N Riley, Jim Davies
Vividness in visual mental imagery is less studied than imagery's format or neural basis. The authors propose re-framing vividness not as closeness to perception, but as closeness to an internal model: the more generated imagery matches this model, the more vivid it is. This perspective may reconcile conflicting findings on visual cortex activation during imagery. The paper examines this view alongside existing neuroscientific, psychological, and philosophical research and outlines future research directions.