We don't know how the brain forms conscious experience, but it is abundantly clear that it does...for the numerous reasons already given.
Yes in terms of consciousness you can like a caveman point to the brain and grunt "there consciousness".
But that's as much as you can do.
Which means you know absolutely nothing about what consciousness is or could do.
So you still ignore what is said in favour of your own version of unreality. We know that vision - for example - is related to eyes and eyes are part of the brains sense organs and the eyes transmit information to the visual cortex which propagates, is processed, integrated with memory enabling recognition, achieving readiness potential as a body of information in visual form, the mystery being the latter part...not that the brain isn't doing it, not that this is magic from the heavens....
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Neuroscientists have repeatedly pointed out that pattern recognition represents the key to understanding cognition in humans. Pattern recognition also forms the very basis by which we predict future events, i e. we are literally forced to make assumptions concerning outcomes,and we do so by relying on sequences of events experienced in the past.
Huettel et al. point out that their study identifies the role various regions of prefrontal cortex play in moment-to-moment processing of mental events in order to make predictions about future events. Thus implicit predictive models are formed which need to be continuously updated, the disruption of sequence would indicate that the PFC is engaged in a novelty response to pattern changes. As a third possible explanation, Ivry and Knight propose that activation of the prefrontal cortex may reflect the generation of hypotheses, since the formulation of an hypothesis is an essential feature of higher-level cognition.
A monitoring of participants awareness during pattern recognition could provide a test of the PFC’s ability to formulate hypotheses concerning future outcomes.''
''This article summarizes psychophysical evidence, arguing that top-down attention and consciousness are distinct phenomena that need not occur together and that can be manipulated using distinct paradigms. Subjects can become conscious of an isolated object or the gist of a scene despite the near absence of top-down attention; conversely, subjects can attend to perceptually invisible objects. Furthermore, top-down attention and consciousness can have opposing effects. Such dissociations are easier to understand when the different functions of these two processes are considered. Untangling their tight relationship is necessary for the scientific elucidation of consciousness and its material substrate.''
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'' NYU Langone Medical Center researcher Orrin Devinsky, MD, performed an in-depth analysis of patients with certain delusions and brain disorders revealing a consistent pattern of injury to the frontal lobe and right hemisphere of the human brain. The cognitive deficits caused by these injuries to the right hemisphere, leads to the over compensation by the left hemisphere of the brain for the injury, resulting in delusions. The article entitled "Delusional misidentifications and duplications: Right brain lesions, left brain delusions" appears in the latest issue of the journal of Neurology.
''Problems caused by these brain injuries include impairment in monitoring of self, awareness of errors, and incorrectly identifying what is familiar and what is a work of fiction," said Dr. Devinsky, professor of Neurology, Psychiatry and Neurosurgery and Director of the NYU Epilepsy Center at NYU Langone Medical Center. "However, delusions result from the loss of these functions as well as the over activation of the left hemisphere and its language structures, that 'create a story', a story which cannot be edited and modified to account for reality. Delusions result from right hemisphere lesions, but it is the left hemisphere that is deluded."
