The instincts of the Enneagram types are self-preservation (sp), sexual (sx), and social (so). They are traditionally used to define three instinctual subtypes or variations of a basic type (e.g., SP 4, SX 4, and SO 4). One of these three subtypes is called the counter-type because it can look different from the basic type. Below are brief descriptions of the three type 4 instinctual subtypes.
SP 4 - Dauntless, Tenacity (counter-type): stoically endures pain and suffering rather than playing the victim; willingness to jump into new territory in pursuit of personal passion; can be self-punishing, demanding of self in order to forge oneself toward an ideal.
SX 4 - Competition, Hate: “more shameless than shameful” in their demand for what they want; competes with others to overcome feelings of internal deficiency; angry envy toward others who have what they don’t or are what they’re not.
SO 4 - Shame, Honor: attracts support by expressing their suffering to others, takes on the victim role; self-defeating focus on sense of inferiority when comparing self to others; feels guilty for wishing, desiring, shameful feelings about self in comparison to others.
While an individual may be identified with type 4 in general, that same individual may be more specifically identified with one of the three instinctual subtypes as well.
A more recent approach to using the instincts is instinctual variant stacking which can be used independent of Enneagram type.