sensory addition or the capacity to expand our "umwelt"

The neuroscientist and author, David Eagleman has become quite relevant today because of his studies around the dynamism that exists between the production of meaning and external impulses that excite the formation of patterns from charges and electromagnetic currents into the brain. His argument explains how the human being is only able to perceive a micro fragment of reality because of its biological constraints. In Philosophy, this field of perception is called "umwelt" .The theoretical framework is simple: the brain only receives electromagnetic impulses from peripheral organs (from the sense of sight, smell, hearing, etc.). The brain has only the ability to detect external properties, in other words, it fails to recognize the characteristics of the peripheral organs that send the information.

From this point of view, the peripheral organs have the ability to be moldable, even interchangeable. Therefore, the meaning that thing we call, for example, "truth", is just a brain that receives impulses, not experiences. David Eagleman began studying this phenomenon in patients lacking one or more senses, beginning with the sense of sight. What these experiments proved was that, in the process of substitution of one sense for another, for example, the sense of sight for the sense of touch, patients were able to formulate patterns of meaning that, practiced for a short amount of time, constructed a coherent grammar structure of perception.

The next step in Eagleman´s investigation do not hold back, just, in the desire for sensory substitution, but rather in expanding the umwelt through the naturalization of prosthesis that allow us to expand the combinatorial patterns that the brain produces. Some early tests have to do with receiving real-time financial data, and the translation of these to a fisical sensor  that allows not only to analyze information, but experience it with our bodies.