Clinical presentation and diagnosis of schizoid personality disorder and schizotypal personality disorder

  Although there is still debate in psychiatry about the attribution of schizoid and schizotypal personality disorders within the DSM-IV Axis II diagnosis, persistent social withdrawal, emotional retardation, non-delusional magical thinking, and bizarre behavior are indeed an Axis II personality trait rather than an Axis I psychotic problem. Schizoid personality disorder manifests as introversion, withdrawal, isolation, apathy, and detachment. They are mostly absorbed in their own thoughts and feelings and fear being close to people. They are reticent, daydreaming, and prefer theoretical speculation to practical action. The term “schizoid” was coined by Kretschmer (1936), who saw an etiological link between this personality and schizophrenia.  However, it has been shown that there is no causal relationship between the two. As in schizoid personality disorder, patients with schizotypal personality disorder often exhibit social detachment and emotional indifference, but in addition, they have eccentricities in thinking, perception, and communication, such as the presence of magical thoughts, telepresence, implicative ideas, or paranoid thought processes. These eccentricities suggest schizophrenic tendencies, but not schizophrenia. Epidemiological investigations of schizoid and schizotypal personality disorders show that patients are predominantly male and that prevalence findings are mixed, depending on the research methods and research instruments used.  Etiology of schizoid and schizotypal personality disorders: Patients with schizoid personality disorders often have a series of early traumas, such as rejection and threats by peers. As a result, the patient typically experiences a different, at least somewhat diminished family closeness compared to others. Patients may perceive that expressing emotions is meaningless, that others are uncaring and unhelpful, and that social interactions are difficult. In short, a set of rules or assumptions may provide these patients with an imaginary “safety” that leads to a lonely lifestyle and social adjustment difficulties.  During normal childhood development, children acquire socialization through several normal developmental stages and learn to accurately understand the hidden meanings and intentions of others. In patients with schizotypal personality disorder, this diminished social cognitive functioning leads to irrational beliefs, whims and paranoid thoughts such as being taken advantage of, persecuted, or suspecting others of injustice to them. Its exact cause is unknown. Some experts believe that childhood abuse, neglect, or stress leads to brain dysfunction and thus causes schizotypal symptoms. Both genetic and environmental factors are involved in the onset and development of the disorder.  Clinical manifestations of schizoid and schizotypal personality disorders The most prevalent characteristic of patients with schizoid personality disorder is a lack of interpersonal interaction, with a common pattern of patients being disengaged from a wide range of social relationships. These patients typically present as isolated and lonely, rarely seeking contact with others, regardless of the focus of the conversation, and they are rarely satisfied in their interactions with others. They spend most of their time alone and rarely choose to participate in a variety of activities with others. Individuals with schizoid personality disorder also exhibit significant limitations in emotional communication. They are slow thinkers, inarticulate, slow speakers, and monotonous in content. They also have few emotional reactions to the outside world. They exhibit a moderately negative state of mind, with neither significant positive nor negative changes. When questioned, these patients rarely reported strong emotions such as anger and happiness. They usually chose occupations with less contact with the public or co-workers. Because of the patients’ interpersonal patterns, others tended to leave or ignore the patients. Over time, the lack of practice can lead to a diminution of the minimal social skills that the patient already has.  Patients with schizotypal personality disorder are characterized by the isolation and emotional indifference of schizoid personality disorder. They are constantly ridiculed, criticized, or gossiped about. Although they usually do not have delusional tendencies, they are tormented by implicated notions that are part of their bizarre beliefs. Patients indulge in mystical and esoteric thinking that is outside the realm of ordinary thought, which impairs their daily functioning. Some patients report “paranormal” experiences, including perceptual distortions such as out-of-body experiences, telepresence, perspective, telekinesis, and so on. They report these experiences in their own unique language, which is difficult to understand due to their extensive use of vague expressions. Patients usually dress strangely, behave erratically, and look eccentric. Their words and actions lead to difficulties in social adjustment and make mockery, which makes many patients paranoid or even paranoid. Perceptions of victimization are not uncommon among patients. They trust only a very few people, usually first-degree relatives. Although they are insensitive to criticism, they usually avoid social situations. Patients perceive the world as a hostile and unpredictable place, and the best option is to avoid it.  Psychotherapy for schizoid and schizotypal personality disorders: Because of their withdrawn behavior, these patients rarely attract the attention of general psychiatrists and are even less likely to be treated in psychiatric wards unless their social withdrawal and bizarre behavior are misdiagnosed as schizophrenia. Sometimes, their families will take them to a psychiatrist on the grounds that they are not “adjusting to life”. Some patients may believe they are mere shells of personalities, lifeless, without feelings, unable to identify who they are? What is it? They are therefore unable to make and maintain meaningful emotional connections. They fear interpersonal involvement or control by others, so they are reluctant to interact with people. They do make the necessary relationships to survive, a phenomenon that Guntrip calls “divisive compromise”.  Paradoxically, the lack of interpersonal relationships leads patients to believe that they are defending their “true selves” from being overpowered by others, which would create a “false self” (Winnicott 1965) [2]. Patients with schizoid traits pose some management problems in psychotherapy wards. They characteristically choose to “take refuge” in a quiet corner of the ward if they are allowed to do so. They avoid interacting with all staff and patients until they feel relatively safe. Any group activity is experienced as threatening and attempts to engage them in group activities are met with strong resistance. As they become familiar with their environment and feel less insecure, especially when they can establish a relationship with a staff member or patient, they can gradually participate in activities with encouragement. These activities may be the first in their lives, the first time they explore relationships in a safe environment.  The challenge for staff is not to work together to deal with the patient’s withdrawal behavior. Staff must realize that silence can be a form of impedance as well as a form of communication and an attempt to build relationships, but understanding and dealing with the patient’s silence requires a particular level of tenacity and flexibility on the part of the staff. In a sense, understanding and dealing with the patient’s silence is a way of accepting the patient’s “true self,” which the patient is actually subconsciously defending against. Staff need to carefully examine the patient’s reactions when trying to approach these patients, noting exactly how they are feeling. These will give a hint about what the patient is experiencing or trying to express, and the next task is to see how these feelings can be shared by the staff, which can somehow improve the patient’s interpersonal relationships.  In summary, the point of treating this type of patient is to accept the patient’s silence as a powerful communication tool and to be prepared to feel rejection and distance. The staff should be cautious when engaging in sustained, in-depth exploration to avoid going beyond the patient’s capacity. Accept the patient’s pace and the pace of change. When assessing patients, information provided by other patients is often more important than information provided by staff.  The likelihood of establishing a little interpersonal rapport with the patient obviously depends on how much the patient withdraws. Staff need to be prepared to accept the unfathomable silence of some patients. Staff members act as a supportive confidant to the patient in operational areas such as personal management, reality testing, and basic interpersonal skills. As patients become more comfortable, they can be scheduled for group therapy. Group therapy is appropriate for patients because in a group they can socialize and develop interpersonal relationships. Group therapists need to allow patients to have appropriate communication in group therapy to avoid their patients joining together to ask about the patient’s privacy making the patient unbearable or ignoring the patient and creating a situation when the patient does not exist. Schizotypal personality disorder has a similar genetic basis to schizophrenia and can therefore be treated with antipsychotic medication.