Premorbid and prodromal stage
Prior to the onset of overt psychosis, many patients are characterized by obedience, attachment to family, and a tendency toward solitary activities. They often exhibit an asthenic body type and good aptitude for exact sciences and abstract thinking. However, in 10% of patients, the premorbid state includes mental retardation and infantilism.
The onset of the disease is rarely acute. The first warning sign is a sharp break in the patient's lifestyle. The patient suddenly loses interest in hobbies, distances themselves from loved ones, and becomes coldly calculating or cruel. Typical manifestations of the prodromal stage:
- Metaphysical intoxication—an unexpected and all-consuming passion for philosophy, ethics, cosmology, or religion (often accompanied by involvement in sects).
- Change in values: emergence of antisocial behavior, fascination with bizarre diets, and severing of old friendships.
- Depersonalization—the patient's subjective complaints that they have internally changed and become "somehow different."
Thought and perception disorders
Thought disorders in schizophrenia are paradoxical: complex logical constructions are combined with their complete unproductiveness.
Main formal disturbances:
- Overinclusive thinking (Raisonnement)—a tendency toward fruitless abstract reasoning.
- Neologisms—the use of invented words or cumbersome scientific terms to describe mundane everyday life.
- Tangentiality and incoherence—a complete loss of meaning in statements while preserving grammatical structure.
A key place in the clinical picture is held by pathology of thought control (ideatory automatism). Patients are convinced that the thought process does not belong to them. Sudden halting of thoughts (sperrung), uncontrolled surges of ideas (mentism), and the symptom of thought broadcasting (the sensation that others are reading their thoughts) are observed. Also characteristic are pseudohallucinations—voices sounding inside the head. At the somatic level, cenesthesias occur—distressing, hard-to-describe bodily sensations.
Emotional-volitional defect and motor activity
Patients' emotions become strange and bizarre. Ambivalence is vividly manifested—the simultaneous coexistence of mutually exclusive feelings toward a single object (e.g., boundless love and burning hatred for one's mother). The face loses expressiveness, and speech becomes monotonous. A specific combination of emotional coldness, bizarre facial expressions, and a lack of empathy allows experienced physicians to suspect the diagnosis from the first minutes (Rümke symptom, or praecox-Gefühl).
As the disease progresses, negative symptoms increase:
- Decreased energy potential (the patient physically cannot force themselves to do anything).
- Emotional flattening (complete indifference, loss of the sense of shame).
- Untidiness (they may sleep in outer garments and not wash for weeks).
Motor disturbances manifest as catatonic syndrome (excitement or stupor). Their essence lies in the complete detachment of motor activity from internal experiences (schisis).
Typical forms of schizophrenia
Four main forms are distinguished (paranoid, catatonic, hebephrenic, and simple), although this division is conventional, and the leading syndrome may change. The overall outcome of any form is negative symptoms.
Paranoid form [F20.0] Occurs in 50% of cases. The leading sign is delusions, most often delusions of control / influence. The disease proceeds with a sequential change of syndromes:
- Overvalued ideas.
- Paranoid stage (logical delusions without hallucinations).
- Paranoid stage—a developed Kandinsky-Clérambault syndrome (psychic automatism, belief in remote influence via rays or hypnosis, pseudohallucinations).
- Paraphrenic stage (addition of absurd ideas of grandeur, confabulations, and increasing indifference).
Catatonic schizophrenia [F20.2] Rare (1–3%). Manifests as lucid catatonia. In a state of stupor, patients freeze in unnatural postures, demonstrating the air pillow symptom and hood sign. Waxy flexibility (catalepsy), complete silence (mutism), and refusal to follow instructions (negativism) are characteristic.
Briefly: answers to topical questions
What types of psychic automatisms are included in the structure of Kandinsky-Clérambault syndrome?
The structure of Kandinsky-Clérambault syndrome includes three types of psychic automatisms.
- Ideational automatism—pathology of thought control, including mentism, thought blocking, the symptom of openness, "thought echo," forced internal speech, and verbal pseudohallucinations.
- Sensory automatism (cenesthopathic, affective)—a state in which various bodily sensations (cenesthopathies, pain, warmth), as well as gustatory and olfactory pseudohallucinations, are perceived as specially induced from the outside.
- Motor automatism (kinesthetic, motor)—the patient's illusion that their natural movements, facial expressions, or speech (speech-motor pseudohallucinations) are performed against their will under external influence.
What clinical forms of schizophrenia are distinguished according to ICD-10?
Sources distinguish four typical syndromal forms of schizophrenia:
- Paranoid form—the most frequent variant; the leading symptom is delusions, most commonly delusions of control. Coded as F20.0.
- Catatonic form—a rare variant; the leading syndrome is lucid catatonia with motor disorders in the form of stupor or excitement.
- Hebephrenic form—characterized by puerilism, mannerisms, clownishness, and empty, non-contagious gaiety; often combined with catatonic excitement.
- Simple form.
What symptoms make up the clinical picture of the hebephrenic form of schizophrenia?
The clinical picture of the hebephrenic form of schizophrenia includes symptoms of childishness (infantilism), mannerisms, and clownishness.
- Emotional disorders—empty, non-contagious gaiety.
- Motor disorders—bizarre gait (shuffling or with high-thrown legs), grimacing, sticking out the tongue, absurd actions (extending a leg instead of a hand for greeting), echopraxia (copying the gestures of others).
- Speech disorders—senseless rhyming of words, unintelligible babbling, sound imitation (meowing, cackling, grunting), as well as verbigeration.
This syndrome is often combined with catatonic excitement.
To remember the triad of ideational automatism, imagine a door in the head: a thought suddenly gets stuck in the doorway (thought blocking), a crowd of thoughts is chaotically pounding on the door (mentism), or the door is wide open and everyone sees your thoughts (symptom of openness).
Class and exam questions
What is the essence of "schizophrenic dementia" and how does it differ from dementia?
Unlike organic dementia, schizophrenia does not feature gross memory and intellectual impairments. The inability to solve problems is associated with a complete drop in initiative, passivity, and thought disorganization rather than the loss of knowledge.
What is Rüke's symptom (praecox-Gefühl)?
This is an intuitive "feeling of schizophrenia" experienced by an experienced psychiatrist. It arises from a specific combination of the patient's emotional coldness, the bizarreness of their facial expressions, and the complete absence of empathy during the conversation.
Which delusion is most characteristic of paranoid schizophrenia?
The most specific are delusions of control (within the framework of Kandinsky-Clérambault syndrome). The patient is convinced that their thoughts and body are controlled from the outside using hypnosis, telepathy, rays, or special services.
What else to study on this topic
- Kandinsky-Clérambault syndrome: types of psychic automatism
- Stages of development of paranoid schizophrenia
- Catatonic stupor: waxy flexibility and negativism
- Schisis: manifestations in thinking, emotions, and motor activity
- Formation of the emotional-volitional defect
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