Time-Space Synesthesia

Have you heard about Synesthesia? It is an unusual perception ability in which the senses are mixed (e.g., a sound or a number has a color, the sense of touch evokes emotions). There is also a time-space synesthesia. According to studies by David Brang of UC San Diego, Department of psychology, time-space synesthetes tend to perceive months of the year in circular shapes, usually just as an image inside their mind's eye.