“Consciousness is a transparent brain representation of the world from a privileged egocentric perspective.”Dr Arnold Trehub
Figure 1. A. Non-conscious creatures. E1 and E2 are discrete events in the physical world. R1 and R2 are sensory transducers in the body that selectively respond to E1 and E2. R1 and R2 signal their response to unconscious processing mechanisms within the brain. These mechanisms then trigger adaptive actions. B. Conscious creatures. In addition to the mechanisms described in A, the brain of a conscious creature has a retinoid system that provides a holistic volumetric representation of a spatial surround from the privileged egocentric perspective of the self-locus — the core self (I!). For example, in this case, there is a perspectival representation of E1 and E2 (shown as E1′ and E2′) within the creature’s phenomenal world. Neuronal activity in retinoid space is the entire current content of conscious experience.
Figure 2. - The self system (Trehub 2007). Neurons at the self-locus anchor the I-token (I!) to the retinoid origin of egocentric space. I! has reciprocal synaptic links to sensory and cognitive processes. Damage to the neuronal mechanisms below the dotted line results in cognitive impairment. Interruption of the synaptic link between the neurons at the origin of retinoid space (the self locus) and I! results in loss of consciousness.