Most of our experiences are multisensory, and involve lesser-known senses like proprioception and interoception. But as it turns out, human perception isn’t really limited to just sight, sound, touch, taste, and smell. It is now thought that we could have between 22 and 33 senses, according to psychologist Charles Spence from the Crossmodal Laboratory at Oxford University. Related Story Gut Feelings Are Memories From the Future, Scientists SayInteroception turns proprioception inside out, and senses changes inside the body in an effort to maintain homeostasis. Taste is the convergence of touch, smell, and gustation (the salty, sweet, sour, bitter and umami flavors picked up by tastebuds).