https://onlinelibrary.wiley.com/doi/pdf/10.1002/pchj.109
Abstract
We present the case of a patient having dissociative identity disorder (DID) who—after 15 years of misdiagnosed cortical blindness—step-by-step regained sight during psychotherapeutic treatment. At first only a few personality states regained vision whereas others remained blind. This could be confirmed by electrophysiological measurement, in which visual evoked potentials (VEPs) were absent in the blind personality states but were normal and stable in the seeing states. A switch between these states could happen within seconds. We assume a top-down modulation of activity in the primary visual pathway as a neural basis of such psychogenic blindness, possibly at the level of the thalamus. VEPs therefore do not allow separating psychogenic blindness from organic disruption of the visual pathway. In summary, psychogenic blindness seems to suppress visual information at an early neural stage.
See also
Therefore, if something analogous to DID happens at a universal level, the one universal consciousness could, as a result, give rise to many alters with private inner lives like yours and ours. As such, we may all be alters—dissociated personalities—of universal consciousness.
Idealism is a tantalizing view of the nature of reality, in that it elegantly circumvents two arguably insoluble problems: the hard problem of consciousness and the combination problem. Insofar as dissociation offers a path to explaining how, under idealism, one universal consciousness can become many individual minds, we may now have at our disposal an unprecedentedly coherent and empirically grounded way of making sense of life, the universe and everything.
