Unfortunately, little about the neural substrate of this cognitive model is offered. The neural levels are labeled at the extreme left edge of the figure. In addition, the model includes lateralized processors which make testable the differences in reaction time associated with posterior analyzers. A controversy about the locus of interference has resulted in the current position that interference occurs at the output stage. However, some evidence in favor of interference occurring at the encoding stage remains, necessitating the current model's ability to test posterior analyzers.
Posterior analyzers are the most likely locus of encoding interference.
The participant is then required to respond either to the verbal or position information by either a vocal or manual response. The various hypothesized pathways of the processing are indicated by the numbers in the figure, representing their relative synaptic distances in ascending order. A graphic illustration of the hypothesized relationships are represented in a linked document.