The baseline scan is intended to be a more precise version of the ‘Voight-Kampff’ test, showing technological progression since the original film. Rather than showing an iris, as in the original, Denis wanted this new test to show the view through the optic nerve, suggesting neural activity in the replicant. The intention was not to mirror human brains or neurons, but to achieve a level of abstraction in the images, that had an aesthetic, as much as organic quality.