"Hyperactivity" in visual cortex of migraine patients

The common causes of migraine are complicated The visual cortex of migraine patients seems to be "over excited", according to a new British study released on the 10th Further research in this area will help to find better ways to prevent migraine Migraine is a common type of headache In many cases, the stimulation of sound and light will aggravate the symptoms Some previous views suggested that this might be related to the changes of brain nerves or blood vessels, but the cause of migraine has not been determined in the medical community Researchers from the University of Birmingham and the University of Lancaster report in the international academic journal neuroimaging: clinical that they recruited 60 volunteers to participate in the trial, half of them suffering from migraine In the experiment, the researchers showed the volunteers the fringe grid test map and asked them to answer whether they felt uncomfortable after seeing it; in the further test, they were also asked to take the EEG test while looking at the map The results showed that the visual cortex of the volunteers with migraine had a more obvious response after seeing the fringe grid test map Visual cortex refers to the part of the cerebral cortex that is mainly responsible for processing visual information Dr Ali mazahri of the University of Birmingham, one of the authors of the report, said that the study showed that the visual cortex of migraine patients may have abnormal changes in the process of processing external information, but "this may be only part of the factor, because in some volunteers who do not have migraine but are more sensitive to visual stimulation, the visual cortex may also have similar changes Like reaction " The team will further analyze the phenomenon and conduct longer-term observation to better understand the causes of migraine