Some myths about the brain, such as the idea we only use 10% of our grey matter, are notorious, especially among neuroscientists. These myths crop up every now and then (look at the premise of the Lucy movie this summer), but they are quickly shot down by those in the know.
In contrast to these enduring stories, other misconceptions are stealthier and slip beneath the radar unrecognised. One of these is the idea that the human brain is served by five senses. This belief is so ingrained that even the scientifically literate will treat it as taken-for-granted common knowledge.
From Christian Jarret at the BBC, “How many senses do we have?”
Perceptual psych folks often talk about how we have more than five senses; I think this is the first time I’ve seen someone put forth a hypothetical grouping in which we have fewer.