The example of pheromones teaches us that entirely new sensory abilities may come to light. However, once the existence of pheromones was proved, scientific method was able to progress our understanding to its current level.
In these days when all civilised people tend to wear shoes, the power of the feet (shared with some other animals) to chemically detect the elements with which they are in contact tends to be unexplored. But if it was considered to exist at more than the most rudimentary level, we could begin to conduct experiments to extend our knowledge.
Now you refer to the infrared. My response is that the realm of the infrared is an extremely simple one to explore. The thermographic camera is a very standard (and inexpensive) piece of laboratory and industrial equipment. Your claimed ability to detect infrared could easily be examined, perhaps with reasonable expectation that your reliability could be improved upon. You should invest in the necessary equipment, design appropriate experiments, and embark upon a scientific quest for knowledge!
I wont comment in to much detail as this would derail your thread, however what I will say is that most of these so called psychic abilities that people talk of are normally locked into reflexive autonomic function. That is to say that they are governed by subconcsious pressures and conditionings and also the physical bodies actual autonomic reactions.
The minds mental tapestry is generated using these subconscious abilities and when they fall within volition of the conscious mind all hell can break loose. At this moment the last thing I want to do is encourage infra-red "seeing" as this imposes and incredible impost on normal mental function.
The mere ability to cogitate being terribly hampered by the distraction that these sorts of things generate.
A bit like learning how to govern ones own heart rate and then having to unlearn how to do so, so you can sleep at night with out a mechanical ventilator...as an extreme example.
We are talking about a life and not a guinea pig. We are talking about how one feels things like affection and human warmth and how "seeing" these things can rob a person of basic human needs fulfillment and satisfaction.
How devestating these sorts of [dis]-ABILITIES can cripple a person who on one hand recognises the potential of full development but simultaneously recognises just how sub human he must become to acheive so [ if he survives the ordeal long enough that is].
So no thank you not at this moment as I am not really interested in learning anything other than how to manage and eventually send the ability back to a subconscious state where it belongs. [acheiving some success with that too I might add as I haven't "seen" in infrared for some months now.]
However does that render my experience and that of others as invalid when talking of how the sensory ability can be quite a great deal more profound than science would propose?
Personally all it does is point yet again to the nature of the beast, that being the scientific method [which is essential] balanced with the humility of knowing our limitations in our understanding of the most incredible organism in the known universe, that being the human body and never forgetting that we actually know so very little of what makes this organism tick.