Yeah, it is possible but their focus would be extreme focus on specific interests which is probably intimate and intense for them and maybe social last, not always sx last. It would depend. They are not all the same. My friend's son is autistic and he bangs his head against walls when frustrated, I assume, but not all autistic people do that. He is growing out of it but spent most of his childhood in a helmet because it was so bad.

Instinctual Subtypes by EnneatypeClick on the stacking links on the right for descriptions of the six instinctual subtypes of each enneagram type. Basic subtypes and stackings are described below.

Instincts – Self Preservation, Social, Sexual.These three instincts are built into our bestial nature, which resides at an unconscious level helping to ensure our survival, both of ourselves and our species. From the perspective of the enneagram, we want to know how these drives appear and function, both within personality and as distinct patterns, as defined by each instinct alone or the alignment of two or three (stacking).

Sexuals attract others without really trying. They also repel others in the same way, like an anti-pheromone. This works like a screening function in the mating process. People typically have a strong reaction one way or another towards Sx’s, and vice versa.

Self Pres people instinctively avoid certain foods and environments, and are likewise drawn to those things that nourish and sustain them. Sp’s have a strong reaction against things that threaten to harm their comfort or health.

Social is driven towards gaining protection and empowerment within larger entities.

Soc’s typically react strongly against things which would jeopardize or displace their position or reputation.

The instinct is always trying to work for our survival, whether we know it or not. Personality can only get in the way. Animals, as more or less fully instinctual beings, don’t have this problem. But integrating our personality with instinct requires that each side of ourselves is fully aware of the other side. Otherwise we are automated, automatic, and on autopilot.

sp/soc
This type is generally private and reserved, and especially serious and practical minded in their focus to gain material security and in making useful connections that support their goals. When they do form a connection, loyalty is very important to them and they will not hesitate to end a relationship on grounds of disloyalty. This type may lack a certain degree of interpersonal warmth which can give the impression of coldness or disinterest in others, even a sense of selfishness. May be drawn to groups that attract like minded individuals, as in business clubs or volunteer organizations where a shared professional culture can facilitate social bonds. They tend to live conservatively and dress in an inconspicuously appropriate fashion befitting their status in life. May have a characteristically blunt and direct style of communication that can take others some getting used to. They are particularly strong in matters of commitment and sacrifice, and enjoy being the benefactors in assisting society’s practical needs.

Motivation: to attain a position of material and societal security.

sp/sx
These people often have an earthy, mysterious quality to them. They are quietly intense, but to others may seem oblivious to the greater social world around them, instead favoring personal interests. They are slow to commit, but once they do it is with an attitude of life commitment, to the establishment of an impermeable bond. Others can be taken aback by how suddenly and completely this type can lock into them, and by the depth of understanding of the other’s condition. They attach to others at an organic, root level, in contrast to the other subvariant’s surface formality. Somewhat hesitant to enter new relationships, they instead preserve the select few enduring bonds they carefully form along the way. The sanctuary of home is of paramount concern, and this type takes particular delight in decorating their spaces to reflect their cherished sense of taste and depth. Depth and discrimination characterize this stacking.

Motivation: to live in a secure, comfortable environment where they can pursue their private interests in depth.