Through interhemispheric connections, the claustrum is believed to play a role in synchronizing activity in widely separated, but functionally related, parts of the brain (e.g. frontal eye fields and visual cortex). As such, the claustrum is thought to play a role in combining different information modalities, potentially to support consciousness itself. Another proposed function of the claustrum is to differentiate between relevant and irrelevant information so that the latter can be ignored.