Apart from technical difficulties in the evaluation of decoding accuracy of dreaming, there are several phenomenological reasons for which dreaming cannot always offer a reliable description of consciousness. These are described in the dream argument and the functional dissociation argument.

Lenggenhager B., Tadi T., Metzinger T., Blanke O. (2007). Video ergo sum: manipulating bodily self-consciousness. Science 317, 1096–1099By modulating subjective experiences, virtual reality can offer promising scientific investigation of the ontological subjectivity. However, an objective measure of this experience will be only possible by studying its neurophysiological correlates. This can be accurately achieved by brain reading. Brain reading refers to the decoding of perceptual or mental conscious states by brain activity alone. The modern methods of “brain reading” are essentially two: invasive techniques, which include electrode implantation in the brain (Kennedy and Bakay, 1998), and non-invasive techniques, which refer to conventional and multivariate neuroimaging approaches (Haynes and Rees, 2006). They permit decoding of mental states with high accuracy and reasonable temporal resolution. Multivariate pattern analysis (MVPA) is the most common technique used in brain reading studies (Weil and Rees, 2010). Voss U., Tuin I., Schermelleh-Engel K., Hobson A. (2011). Waking and dreaming: related but structurally independent. Dream reports of congenitally paraplegic and deaf-mute persons. Conscious. Cogn. 20, 673–687 By modulating subjective experiences, virtual reality can offer promising scientific investigation of the ontological subjectivity. However, an objective measure of this experience will be only possible by studying its neurophysiological correlates. This can be accurately achieved by brain reading. Brain reading refers to the decoding of perceptual or mental conscious states by brain activity alone. The modern methods of “brain reading” are essentially two: invasive techniques, which include electrode implantation in the brain ( Kennedy and Bakay, 1998), and non-invasive techniques, which refer to conventional and multivariate neuroimaging approaches ( Haynes and Rees, 2006). They permit decoding of mental states with high accuracy and reasonable temporal resolution. Multivariate pattern analysis (MVPA) is the most common technique used in brain reading studies ( Weil and Rees, 2010).

He imagines all the possible uses for Morel's invention, including the creation of a second model to resurrect people. Despite this he feels repulsion for the "new kind of photographs" that inhabit the island, but as time goes by he accepts their existence as something better than his own. He learns how to operate the machine and inserts himself into the recording so it looks like he and Faustine are in love, even though she might have slept with Alec and Haynes. This bothers him, but he is confident it will not matter in the eternity they will spend together. At least he is sure she is not Morel's lover.Sanchez-Vives M. V., Slater M. (2005). From presence to consciousness through virtual reality. Nat. Rev. Neurosci. 6, 332–339 Kennedy P. R., Bakay R. A. (1998). Restoration of neural output from a paralyzed patient by a direct brain connection. Neuroreport 9, 1707–1711