I've been reading a little about memory - the various kinds and how it works. Something immediately springs to mind and I haven't found a clear answer. But then I'm not sure if I am totally missing the point and misunderstanding things. When we perceive a scene, we detect sensory stimuli which are passed through processing routines in the brain. However these representations seem to be purely mechanical in nature, and it isn't until we become consciously aware of a scene that it gains its experiential quality. For example, our eyes respond to lightwaves and pass those signals into our brain, but colour is some kind of internal construction. Indeed, our visual experience is a construction utilising the raw sensory input. When I look at a scene and then later recall that scene, I am accessing a memory of that scene. But what is it that is stored in memory for me to access? Is it the sensory input or is it the constructed visual experience? That is, do we construct the recalled visual scene in the same way that we construct the original experience (from neural representations of the raw sensory input), or do we recall the constructed scene?