Although the appearance of total paralysis was sufficient to illustrate the marked difference between the results of blockage of 5-HT2A receptor and other receptors that have been implicated in recovery of locomotion after spinal cord injury such as 5-HT2B and 5-HT2C, we investigated rhythmic movements that persisted just prior to total paralysis and compared to the locomotor EMG pattern induced by the other drug administration that did not result in total paralysis. This evidence concerns the gene HTR2B and Paralysis.