Sensation, Consciousness and Attention
To understand sensation, we will take the example of touch receptors, which play a major role when interacting with the outside world in terms of survival and reproduction.
With such arrangement, whenever an area in the body sends sensory data whose intensity value is above a certain threshold level, LB interrupts any intramural communication that may be going on and instead, alerts VP about it by communicating information about its location and the extent of area generating it, along with its intensity values, which it does by sending it in summarized form to VP.
Sensation happens when VP uses such intensity value to assign consciousness to its respective area, where the level of consciousness is proportional to the intensity value (which is pre-perception consciousness).
Note: To optimize operations, if same intensity (or similar intensities which are under a certain threshold) of sensory data is continuously being sent by sensory receptors, e.g. when a person is sitting still, LB does not send it to VP, as it has already processed it earlier, resulting into saving a high amount of energy while making available the much needed VP utilization time. This phenomenon is known as sensory adaptation.