Indeed, when investigating sensory neuron development in the Taiwanese mouse model of SMA, it was shown that a similar change in sensory neuron fate occurs when SMN expression levels are reduced: a decrease in the number of NF200-positive mechano- and proprioceptive sensory neurons is accompanied by an increase in the number of peripherin-positive nociceptive sensory neurons (Shorrock et al., 2018b). Here, SMN1 is linked to proximal spinal muscular atrophy.