Transcutaneous auricular vagus nerve stimulation in treating post-stroke insomnia monitored by resting-state fMRI: The first case report

•This is the first case for transcutaneous auricular vagus nerve stimulation in post-stroke insomnia patient by fMRI. •The results indicated that taVNS has provided a potentially useful and safe new technique for PSI patients. •The neural mechanism probably is due to regulate the FC of default mode network, visual cortex and emotional...