Excerpt About Schizoid Defense
Another defense against inadequacy, less common than the above two, but related to them, is the schizoid defense of isolation and withdrawal. The inadequacy is sometimes experienced as an incapacity to interact with others, to engage in human object relations. One feels too inadequate and deficient to make contact. Then one defends oneself against this deficiency in relating by abandoning interpersonal relations altogether. One isolates oneself from others, builds a detached wall around oneself, and withdraws deep within.