Non-invasive neurostimulation: an emerging therapeutic modality in veterinary neurology

Non-invasive neurostimulation involves techniques that stimulate the nervous system without penetrating the skin. These techniques, which range from electrical and magnetic to other types of stimulation, are designed to alter the activity of nerve cells and the broader networks they form. Although these methods have proven effective and safe for treating certain neurological conditions in humans, their success varies significantly from one individual to another. This variability can be because of the lack of standardised stimulation protocols, biological differences among individuals and the particular state of the neural areas being targeted. Various non-invasive neurostimulation techniques have been investigated, particularly in human medicine, including transcutaneous vagal nerve stimulation, transcutaneous electrical nerve stimulation on various nerves, repetitive transcranial magnetic stimulation and transcranial direct current stimulation. Of these, repetitive transcranial magnetic stimulation has emerged as the leading technique in research for human and veterinary medicine because of its potential in treating a wide range of neurological disorders. In the field of veterinary medicine, the use of non-invasive neurostimulation as a treatment approach is still in its early phases, with only a few reports documenting its application in managing seizures and behavioural issues in animals.