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Psychiatry · Chapter 2. Psychological mechanisms of human behavior

Will and Motivation

Voluntas et motivatio

Volitional activity and motivation are inextricably linked with unconscious psychological defenses. These internal mechanisms modify human behavior, determining the response to stressors, interpersonal communication style, and predisposition to mental disorders. Understanding these processes is critical for the correct interpretation of a patient's actions.

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UnconsciousnessThe individual is unaware of using defense mechanisms and is unable to control them directly.
ResistanceAny external attempt to break down a defense invariably provokes unpleasant emotions and sharp rejection.
Stress intensityThe stronger the frustration of a need, the more energetically and powerfully the psychological defense operates.
Character armorDefenses can operate continuously even in the absence of stress, forming a persistent behavioral style.
Meta-meaningOver 50% of the true meaning in oral communication is transmitted through non-verbal cues.
4 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

Classification of psychological defenses

All defense mechanisms are classified by their degree of maturity. Their stereotyped and excessive use seriously impairs social adaptation (for example, constant repression presents as forgetfulness that irritates others).

  • Primitive (immature). They rely on magical thinking (the "close my eyes — I don't exist" pattern). The subject actively emphasizes their helplessness, relieving themselves of responsibility for what is happening. In adults, the active use of such defenses elicits only condescension from colleagues and leads to severe maladaptation (psychopathy) or the development of psychosis.
  • Neurotic. They have a more complex structure, engaging intellect and logic. These include rationalization, intellectualization (stripping feelings of their emotional tension), hypochondriasis (retreating into the experience of an imagined illness due to general dissatisfaction), somatization, and devaluation, which is mistakenly perceived as wisdom.
  • Mature. They are based on socially approved behavior (for example, sublimation—symbolic gratification of a need, often through creativity). They enhance social status, yet deprive the individual of simple pleasures, restricting their freedom.

Pathology of will: neuroses and character armor

Maladaptive psychological defenses play a key role in the pathogenesis of diseases. The symptomatology of a specific disorder depends directly on the predominant mechanism:

  1. Hysterical neurosis: conversion, dissociation, repression.
  2. Obsessive-compulsive neurosis: rationalization, anxiety fixation.
  3. Depressive neurosis: turning against the self, devaluation.

According to Anna Freud's concept, in some individuals defenses are active continuously, regardless of the presence of a real threat. This forms "character armor"—a persistent shell necessary to maintain internal equilibrium. Striking examples of such constant defense include autism (withdrawal from potential insults), pedantry (defense against the fear of change), and altruism (defense against a deep sense of guilt).

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Physician tactics and communication structure

Interacting with a patient's defenses requires extreme caution. Two strategies are used in psychotherapy:

  • Expressive tactic: the physician purposefully dismantles the defense, returning the patient to reality. It is dangerous to use in severe patients (e.g., in alcoholism), as it threatens decompensation or suicide.
  • Supportive tactic: passive reinforcement of the existing defense ("a white lie"), if the subject is objectively not ready to bear the burden of reality.

According to Paul Watzlawick, communication conveys two layers of information: digital (strict words) and analog (unformed images, meta-meaning). In medicine, scientific terms often carry a frightening meta-meaning. Therefore, diagnoses should be formulated by adding phrases with a positive impact (for example, describing the condition as a "stress reaction in the form of asthenia" rather than dryly stating the syndrome).

E. Berne's transactional analysis and manipulation

Eric Berne's theory identifies three ego states that determine the hidden subtext of communication:

  • Adult (A): focus on concrete results and rational cooperation.
  • Child (C): mischief, caprice, communication for the sake of play without an ultimate goal.
  • Parent (P): blind adherence to rituals and rules, even if they lack logic.

Ideal mutual understanding is achieved in complementary transactions (Adult-Adult). If transactions are crossed (an "Adult" remark is answered by a "Child"), communication breaks down. Sometimes a double subtext arises—ulterior transactions.

Since all communication is goal-directed, it can take the form of manipulation. Manipulators play on strong emotions (pride, guilt, pity) using flattery or displays of helplessness, forcing the victim to act to their own detriment. The best defense in such situations is unpredictable behavior (abruptly changing the topic), maintaining distance, or demonstrating feigned sluggishness.

How to memorize

To remember the types of constant defense (A. Freud's "character armor"), use the APA mnemonic: Autism (defense against others' opinions), Pedantry (against fear of change), Altruism (against guilt).

Class and exam questions

How do stress intensity and defense expression correlate?

There is a direct correlation: the stronger the current need is blocked by stress, the more energetically the defense operates. For example, it is weakly expressed in patients with ARVI, but extremely strong in oncology.

Why can the breakdown of psychological defenses be dangerous?

Abruptly breaking down a defense without a clear rehabilitation plan leaves the individual without tools to cope with reality. This can provoke severe decompensation, the development of psychosis, or suicidal behavior.

What is the specificity of ulterior transactions according to E. Berne?

In such an interaction, two ego states of the interlocutors participate simultaneously. Because of this, a hidden double meaning (meta-meaning) arises, which does not coincide with the literal meaning of the spoken words.

How to properly react to an attempt at manipulation?

The most effective way to disrupt a manipulator's scenario is with an unpredictable action (clapping hands, turning away sharply) or by demonstrating feigned sluggishness, asking them to repeat what was said.

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What else to study on this topic

  • Detailed analysis of hysterical neurosis and mechanisms of dissociation
  • Specifics of obsessive-compulsive neurosis and anxiety fixation
  • Levels of interpersonal relationships: from dominance to cooperation
  • The role of analog information in the formation of iatrogenesis

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Other topics in "Chapter 2. Psychological mechanisms of human behavior"

Sensation and perceptionAttentionMemoryThinkingIntellectEmotions and feelingsTemperamentCharacter and personality
The entire section "Chapter 2. Psychological mechanisms of human behavior"

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