1. Si and Fi are often associated with a strong kinesthetic sense – like a whole body feeling-tone response. Si is an information source that informs decisions. When engaging in this process, a series of past impressions comes to mind unhidden. Fi is a judging process that uses different sources of information as checkpoints along the way to know if the evaluation is right.
2. Ti and Ni are often accompanied by a sense of detachment and disconnection. With both there tends to be comfort with complexity. The difference is that when we are engaging in Ti, we usually have a clear sense of the principles or models something is judged against, whereas Ni, an impressionistic image forms in the mind.
3. Se and Te are often used when there is a focus on facts and an empirical approach. Se is a perceptive process and may consist of data gathering with questions, whereas Te is a judging process in which the purpose of questions is to establish logic.
4. Ne and Fe often focus on people and their interactions. With Ne, it is the meanings and inferences that come to mind relative to people and their interactions. With Fe, it is the actions that keep people connected or disconnected that matter.
5. Se and Ne are both simultaneous in nature and involve perception of many things at once. This can lead to random activity as the outer world is scanned for additional information. With Se, there is an emphasis on possibilities for actions to take. With Ne, there is an emphasis on possibilities to be considered for action.
6. Si and Ni are both more focused and involve perception of “one thing at a time.” This gives the behavior a sequential appearance, with a sense of beginning, middle and end. With Si, the sequence is often logistical in nature and based on the past. With Ni, it’s based on a vision for the future, and the focus is on what steps to take next.