Catatonic Behavior: Symptoms and Associated Disorders

Most people, when they hear the word “catatonia,” picture someone frozen in place – a person standing rigid and unresponsive, as if time stopped for them alone. That image isn’t wrong, but it’s far from complete. Catatonia is a complex neuropsychiatric syndrome that can swing in the opposite direction too, producing frenzied, purposeless movement. It disrupts how the brain manages motor signals, behavior, and responses to the environment – and understanding it is essential for accurate diagnosis and timely treatment.

Defining catatonia 🔗

Catatonia is not a disease in itself – it is a syndrome, meaning a cluster of symptoms that arise in the context of an underlying condition. According to the Cleveland Clinic, it disrupts the areas of the brain responsible for senses, movement, motivation, thinking, and executive functions, which is why it produces such a wide and seemingly contradictory range of symptoms. A person with catatonia may be awake and aware of their surroundings and yet show little to no response to them.

The DSM-5 defines catatonia by the presence of three or more of twelve specific psychomotor features. Clinicians need to identify at least this threshold before a formal diagnosis is made. These features span three broad activity patterns: withdrawn or hypokinetic, excited or hyperkinetic, and mixed.

Stupor and the withdrawn form 🔗

Stupor is the most well-known and visually striking catatonic sign. It involves a complete absence of psychomotor activity – the person is unresponsive to external stimuli, does not initiate movement, and does not speak, yet they are not unconscious. The Royal College of Psychiatrists notes that people with catatonia may sit very still and stare into space, hold postures that would normally be uncomfortable, or stop eating and drinking altogether. Importantly, research shows that many of these individuals are fully aware of what is happening around them and can later recall events from their catatonic episodes, even though they showed no outward reaction at the time.

Waxy flexibility 🔗

One of the most clinically distinctive signs is waxy flexibility (also called flexibilitas cerea). UCL’s Institute of Mental Health describes it as a slight but even resistance when an examiner repositions the patient’s limbs – after which the person holds that new position, as though their limbs were made of soft wax. The limb neither falls immediately nor returns to its original place. This passive compliance is a hallmark of the withdrawn catatonic state and helps distinguish it from other forms of rigidity seen in neurological conditions.

Excited catatonia 🔗

Not all catatonia looks like stillness. The excited or hyperkinetic form involves excessive, purposeless motor activity – pacing, agitation, aggression, and impulsive or even self-harming behavior – that occurs without any clear external trigger. The person appears “sped up” and cannot be settled by reassurance. This form is frequently misidentified as a behavioral or agitation problem rather than recognized as a catatonic episode, which can dangerously delay appropriate treatment.

Disorders linked to catatonia 🔗

Catatonia was long considered almost exclusively a feature of schizophrenia – so much so that it was listed as a subtype of schizophrenia in the DSM-III. That understanding has since changed fundamentally. Current knowledge places mood disorders, particularly bipolar disorder and severe depression, as the most common underlying psychiatric conditions. Schizophrenia remains significantly associated, but it is no longer the primary frame of reference.

Schizophrenia 🔗

When catatonia occurs alongside schizophrenia, it tends to feature negativism, rigidity, waxy flexibility, and mannerisms. StatPearls (NCBI) notes that while chronic catatonic schizophrenia is relatively rare today, acute catatonic episodes in schizophrenia are clinically significant and usually respond well to benzodiazepines or electroconvulsive therapy. The involvement of catatonia often changes how schizophrenia progresses, with most cases developing and deteriorating rapidly once catatonic features emerge.

Severe depression and bipolar disorder 🔗

Mood disorders are now recognized as the leading psychiatric context for catatonia. ScienceDirect confirms that catatonia can occur in patients with major depressive disorder and bipolar disorder, in addition to schizophrenia. In the context of severe depression, the immobility and mutism of catatonia can look like extreme psychomotor retardation, making differential diagnosis particularly difficult. The clinician must distinguish between a patient who is deeply depressed and one who is catatonic – the treatment approaches differ significantly.

Organic CNS causes 🔗

Beyond psychiatric disorders, a substantial proportion of catatonia cases have a direct neurological or medical basis. The Journal of Neuropsychiatry and Clinical Neurosciences reports that over a hundred medical conditions have been linked to catatonia, most commonly those causing diffuse cerebral dysfunction – including encephalitis, seizures, metabolic disturbances, and autoimmune conditions. Two-thirds of medically caused catatonia cases involve CNS-specific disease such as encephalitis, neural injury, structural brain pathology, or epilepsy. A PubMed-indexed review emphasizes that the first clinical priority when evaluating catatonia should always be ruling out organic causes, as neurological disorders are among the most common culprits. Substance use – including intoxication with cannabis or cocaine, and withdrawal from alcohol or benzodiazepines – can also precipitate catatonic states.

Clinical examples: key symptoms and their diagnostic significance 🔗

The diagnostic criteria for catatonia list twelve psychomotor features, and clinicians need at least three to confirm the diagnosis. Several of these symptoms carry particular diagnostic weight because they are distinctive, observable, and difficult to attribute to other conditions.

Echopraxia and echolalia 🔗

Echopraxia is the automatic imitation of another person’s movements. If a clinician raises their hand during an examination, the patient mirrors the gesture without being asked and without apparent awareness that they are doing so. Echolalia is its verbal counterpart – the person repeats words or phrases spoken by others, often in a hollow, automatic manner. Cleveland Clinic describes these as echophenomena, and they are among the features included on the Bush-Francis Catatonia Rating Scale (BFCRS), the most widely used clinical assessment tool for catatonia. Their presence points strongly toward catatonia rather than other causes of unresponsiveness, since conditions like akinetic mutism – which can superficially resemble catatonia – do not typically produce echolalia or echopraxia.

Negativism 🔗

Negativism in catatonia is not the ordinary reluctance or oppositional behavior seen in everyday life. UCL describes it as an automatic and motiveless resistance to instructions or to being moved – the person either does not respond to commands at all or actively does the opposite of what is requested, without apparent reason or intent. This can appear at first glance like willful noncompliance, but it is a neurological symptom. Clinicians also look for related signs such as gegenhalten (passive resistance of the limbs to being moved) and mitgehen (the person moves in the direction of a light push despite being told to stay still) – both reflect the same underlying dysregulation of voluntary movement control.

Posturing and catalepsy 🔗

Posturing involves the spontaneous adoption and prolonged maintenance of unusual body positions that would be uncomfortable for anyone else – such as holding an arm extended at an odd angle, or keeping the head slightly raised as if resting on an invisible pillow, for hours at a time. Catalepsy is closely related: the patient passively accepts and holds whatever position the examiner places them in, even against gravity. Together with waxy flexibility, these signs form a triad of passive motor compliance that is central to the withdrawn subtype of catatonia.

Why these symptoms matter for diagnosis 🔗

The clinical significance of identifying these features accurately goes beyond labeling. As StatPearls explains, early recognition and treatment can be life-saving: delays increase the risk of hospitalization, cognitive decline, dehydration, blood clots, and progression to malignant catatonia – a life-threatening variant involving high fever, autonomic instability, and a historically very high mortality rate. Catatonia is also frequently underdiagnosed, partly because its features overlap with other conditions like delirium, severe depression, or the negative symptoms of schizophrenia, and partly because clinicians may not systematically screen for it. Medscape notes that the condition remains highly underdiagnosed despite decades of research since Karl Kahlbaum first described it in 1874.

The diagnostic process involves a physical examination, validated scales like the BFCRS, and ruling out organic causes through brain imaging, EEG, and blood work. The Royal College of Psychiatrists also points to a “lorazepam challenge” – a single dose of this benzodiazepine given to confirm the diagnosis; improvement after the dose strongly supports a catatonia diagnosis and guides subsequent treatment decisions.

What do you think? Given that catatonia can present so differently across individuals – from complete stillness to agitated, purposeless movement – how might clinicians avoid missing the diagnosis in a patient whose symptoms don’t fit the classic picture of a frozen, unresponsive person? And knowing that catatonia can arise from both psychiatric conditions and organic CNS causes, how important is it for psychiatrists and neurologists to collaborate closely from the very first point of assessment?

References

1. https://my.clevelandclinic.org/health/diseases/23503-catatonia
2. https://www.ncbi.nlm.nih.gov/books/NBK430842/
3. https://www.rcpsych.ac.uk/mental-health/mental-illnesses-and-mental-health-problems/catatonia
4. https://my.clevelandclinic.org/health/diseases/23499-catatonic-schizophrenia
5. https://www.ucl.ac.uk/mental-health/research/catatonia/diagnosis
6. https://en.wikipedia.org/wiki/Catatonia
7. https://www.sciencedirect.com/topics/medicine-and-dentistry/catatonia
8. https://psychiatryonline.org/doi/10.1176/jnp.2009.21.4.371
9. https://pubmed.ncbi.nlm.nih.gov/25858694/
10. https://emedicine.medscape.com/article/1154851-overview