Im not sure if Se applies a transformation, but it certainly applies a limit on your perception. Ie you are only taking in perception directly, via your five senses. Were you to truly open up and be completely perceptive, completely present, you would need to also be perceiving indirectly through your unconscious - Intuition. Both would need to be firing, simultaneously.
Perhaps, yes. I cant quite get my head around the difference between the two. How you can perceive things extroverted or introverted. Or perhaps as you say, raw perception is done the same by everyone - intuition (or sensing) is a sort of secondary perception, which can be done in an extroverted or introverted way. I guess this is what youre saying.
I've given some thought to the matter, and here is my take on it.
When speaking of raw information, I am referring to the information from the senses which has not undergone further processing.
So, take the example of sight. From a raw perspective, the only information that you are getting from sight is a sea of colour. That's it. Now, say you're looking at a chair. From a raw perspective, all you're seeing is the brown of the wood in a particular shape. What Se does is that it perceives that you are staring at a chair - i.e. it integrates the information from the senses into a whole object. Note that it doesn't actually call it a chair, because a) Se it non-verbal, and b) Se doesn't generalise, it just perceives the object in front of it which we know as a chair.
It is also perceives salience - different features of the environment will stand out more than others, and it naturally focuses on what stands out the most (but also scans the environment in general to see what is there). When considering raw processing, nothing really stands out.
So, I am against the idea that extroverted sensing is somehow equivalent to the 5 senses. I believe that the Sensing functions are not actually the senses, but are a layer of processing which differentiates one object from another.
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Check this out:
Sensation (psychology) - Wikipedia
Sensation is an animal's, including humans', detection of external or internal stimulation (e.g., eyes detecting light waves, ears detecting sound waves). It is different from perception, which is about making sense of, or describing, the stimulation (e.g., seeing a chair, hearing a guitar).
So, I believe that the term "Sensation" in reference to a particular (Jungian) cognitive function(s) is a misleading term, because it's not
actually sensation, it's a form of perception.
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Furthermore, this part may be distinguishing extroverted from introverted perception:
Perception can be split into two processes, [5]
(1) processing the sensory input, which transforms these low-level information to higher-level information (e.g., extracts shapes for object recognition);
(2) processing which is connected with a person's concepts and expectations (or knowledge), restorative and selective mechanisms (such as attention) that influence perception.
However, I would like each of those 2 components to be further divided into their S (detail) and N (pattern) forms.