Pugh Jr. in 1983, and has been sparingly used. Activity in the bridge locus neurons is postulated to be necessary and sufficient for sensory perception: if the bridge locus neurons are not active, then the sensory perception does not occur, regardless of the actual sensory input. Conversely if the bridge locus neurons are active, then sensory perception occurs, regardless of the actual sensory input.
In 1983, Pugh Jr. described this phenomenon, and it has been used sparingly. It is hypothesized that activity in the bridge locus neurons is necessary for sensory perception: if these neurons are inactive, sensory perception does not occur; conversely, if they are active, sensory perception happens, regardless of the actual sensory input.