||TARGET DEFINITION: Hindbrain interneurons that are part of the reticular formation. The T interneurons receive synaptic input from the Mauthner neuron, from unidentified axons in the mlf, and perhaps from trigeminal sensory fibers. . The axon is T-shaped the proximal segment courses to the midline of the brain and near the midline bifurcates to form an ascending rostral segment and a descending caudal segment. The rostral and caudal segments join the dorsal component of the MLF. The T interneurons are located caudal to CaD and appear to be bilaterally paired. They project to cranial and pectoral motor nuclei.