We have five senses. Or do we? It is highly likely that we have additional senses that we have not consciously been aware of in our normal lives. David Eagleman, a neuroscientist, has gone much further than just asking the question. He has made things, gadgets, that allow us to check what new sensory data we can access and train the brain to use. For example, a vest that provides vibrations that reflect the emotional content of Twitter.
Take a look at his most recent TED Talk – expand your UMWELT!