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Psychiatry · Chapter 25. Disorders of Adult Personality and Behaviour

Dissocial personality disorder

Schizoid personality disorder

Character pathology, which in clinical practice most frequently manifests as social withdrawal, avoidance of contact, and pronounced emotional coldness. At the same time, the majority of patients exhibit a paradoxical combination of incompatible traits, forming a unique psychological profile that requires careful analysis.

Mixed typeThe most common variant, combining vulnerability and coldness (the "glass and wood" phenomenon).
Psychological defensesIntellectualization, arrogance, and withdrawal into autism to shield oneself from the outside world.
Frequent complicationDevelopment of obsessive-phobic neurosis against the background of unresolved intrapsychic conflicts.
Reason for seeking helpIrreconcilable interpersonal or deep intrapsychic contradictions.
6 min readFor medical studentsUpdated Sep 25, 2026
Material prepared by WhiteCoat Pro editorial team based on platform study guidesReviewed by medical editor: Aulov A. A., general practitioner · 09/24/2026

Typology and character traits

In practical work, specialists traditionally distinguish two polar variants of such personalities. However, isolated forms in real life are extremely rare. Most often, the clinician encounters a combination of traits forming a complex psychological pattern.

  • Sensitive pole: Patients of this type carefully hide from the surrounding world and categorically avoid being in public. They cannot tolerate any intervention, even minimal, into their personal space. A characteristic feature is the complete refusal of outside help and support—they prefer to cope with everything on their own, remaining in the background.
  • Expansive pole: These individuals also have no need for social contacts, but, unlike sensitive ones, they do not hide from society at all. Their main defense serves as the so-called "armor of indifference." They demonstrate total emotional coldness. People around them often suffer from their overt callousness and complete lack of empathy—they are physically incapable of sympathy. Any negative evaluation from society does not affect the expansive patient at all; in their actions they remain extremely resolute and dispassionate.
  • Mixed type: The most common variant in the population. Its main feature is the paradoxical combination of the incompatible: deep emotional coldness toward others and hypertrophied internal vulnerability.

Among the most typical defense mechanisms employed by such patients are autism, pronounced arrogance, and intellectualization (the tendency to explain emotions through logic, stripping them of their sensory component).

Detailed clinical portrait (using accentuation as an example)

To understand the dynamics of the disorder, it is advisable to examine a typical clinical case.

Background data and anamnesis: A nineteen-year-old young man, a biology student at MSU. Brought to the appointment by his parents. The main complaint is total disobedience and a critically low capacity for normal social interaction. It is known that the patient's family history is burdened psychiatrically: the father's brother suffers from schizophrenia. The parents themselves are mentally healthy. Early physical and mental development proceeded without any particular features.

Childhood features: From an early age, the boy demonstrated an extremely difficult character. Notably, classic childhood tantrums or loud scandals were absent. Instead, there was sullen but stubborn disobedience. The child could completely ignore direct appeals—for example, he did not react at all to being called for dinner, unperturbedly continuing his game. Any attempts by parents to apply punishment provoked a violent aggressive reaction: the boy snapped back, locked himself in the room, tried to bite adults or spit at them. Emotional attachment (e.g., tender feelings for the mother or grandmother) was manifested strictly in doses and exclusively when he wanted it himself. Intellectual development outpaced peers: he learned to read at age five, yet until the age of eleven he stubbornly demanded that adults read aloud to him.

School period and interests: Throughout school, the patient constantly irritated the teaching staff with his disobedience. He showed absolute indifference to poor grades, although objectively he could write complex tests with top marks. Communication with classmates was extremely selective. His behavior showed pronounced oddities: for example, he seriously suggested watering houseplants with a blue chemical solution, expecting their petals to turn blue.

Sadistic tendencies were also traceable—he frequently bullied younger and physically weaker children. However, as soon as he met with real resistance, he would immediately run to complain to the teachers, persistently demanding severe punishment for his offender.

The young man's interests were always specific: he was fond of reading very complex literature that was completely inappropriate for his age (while in the tenth grade, he avidly read works by Márquez and Cortázar). In addition, he showed an unhealthy interest in medical literature and periodically asked his parents to buy him pills for a mythical "health improvement".

Test your knowledge on the topicTasks from the "Psychiatry" course bank — immediate answers and explanations.

Family conflicts and university studies

Relationships within the family always remained tense. The patient constantly conflicted with his younger brother (their relationship is described as "like cats and dogs"). He preferred to spend most of his free time in complete isolation, locked in his room reading books or at the computer.

Any attempt to violate his rigid personal boundaries led to outbursts of uncontrolled aggression. There is a known episode when, in response to his mother's persistent demand to go to a grandmother's birthday celebration, he attacked her with his fists, forcibly locked her in a room, and threatened to break the door down.

Studies and interpersonal excesses: The patient entered a prestigious university entirely on his own, purposefully refusing the services of tutors. His academic performance was brilliant, but strictly in those subjects that aroused his personal interest. Those disciplines that he did not like, he categorically refused to pass, which caused serious problems that his parents had to sort out.

In the sphere of interpersonal relationships, a tendency toward obsessive behavior manifested itself: he stalked a female classmate for a long time. When the girl gave a direct refusal to his attempts to continue communication, the young man ran away from home. He was absent for two weeks, hiding at another classmate's country dacha. He took only textbooks with him and did not attend university classes during this period. He left a short note for his parents demanding not to look for him. Two weeks later, he calmly returned home and independently, without outside help, eliminated all accumulated academic arrears.

At the psychiatric appointment, the patient acts detached: eye contact is noticeably reduced (he prefers to look at the floor). He does not conceal information and talks about family conflicts to the doctor with absolute calmness. His insight into his own condition is significantly reduced—he confidently states that his parents "are crazy themselves". At the end of the conversation, he asks to be prescribed "some pills for the head".

Reasons for seeking psychiatric care

Patients of the described circle extremely rarely turn to specialized professionals on their own initiative. As a rule, the occasion for a visit to a psychiatrist is insoluble conflicts, which can be either internal or external.

  1. Sensitive patients: They are dominated by intrapersonal conflicts. They suffer deeply from an unsatisfied internal need for self-realization. This need cannot be realized due to their total inability and categorical unwillingness to enter into normal interaction with society. The main clinical complication of such a condition is the development of neurosis (most often forming an obsessive-phobic variant).
  2. Expansive patients: They are more characterized by a tendency to provoke acute interpersonal conflicts. Their callousness and straightforwardness regularly bring them into collision with society. A natural complication of their behavior is large-scale life collapse (loss of a job, destruction of ties), which is inevitably followed by severe reactive depression.

Briefly: answers to topical questions

What diagnostic criteria for dissocial personality disorder are distinguished according to ICD-10?

According to ICD-10, dissocial personality disorder (code F60.2) manifests as weakness of will, irresponsibility, and a thirst for immediate gratification. Key clinical manifestations include:

  • Weakness of will — a complete lack of perseverance and patience.
  • Thirst for immediate gratification — desires must be fulfilled immediately; upon refusal, patients achieve their goals through deception.
  • Inability to plan — they avoid labor and seek easy and accessible pleasures.
  • Irresponsibility — they experience absolutely no shame for their actions, lie primitively, deny guilt, and make empty promises.

In the social sphere, they are characterized by an inability to form lasting attachments, a propensity for substance use, and criminal behavior.

How to memorize

To memorize the essence of the mixed type, use the "glass and wood" metaphor: the person is fragile and easily vulnerable inside (like thin glass), but demonstrates absolute callousness and rigidity on the outside (like hard wood).

Something unclear? Ask the neural networkThe AI tutor has read the material on "Antisocial personality disorder" and will explain it in simple terms.

What else to study on this topic

  • Criteria for differential diagnosis with early manifestations of schizophrenia
  • Mechanisms of formation of obsessive-phobic neurosis in sensitive personalities
  • Specifics of sadistic manifestations in childhood and their consequences
  • Analysis of the influence of burdened heredity on character formation

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