The Mind Behind the Face Pain: Alexithymia and Cognitive Slowing in Trigeminal Neuralgia
- In 73 patients with chronic trigeminal neuralgia versus 34 healthy controls, patients scored significantly higher on alexithymia, anxiety, depression, perceived stress, pain catastrophizing and harm avoidance, and lower on self-transcendence.
- Patients showed measurably weaker working memory and verbal fluency — objective neuropsychological deficits, not just self-reported distress.
- A regression model using Rey Complex Figure copy, backward digit span and perceived stress explained 32% of the variance in pain intensity.
- The work comes from a Russian neurosurgical center (Novosibirsk), profiling a population almost never characterized psychologically — patients usually routed straight to microvascular decompression or radiosurgery.
Trigeminal neuralgia is one of the most severe pains in medicine, and it is treated almost entirely as a wiring problem — a vessel compressing a nerve root, fixed by a surgeon. This study, from the Federal Center of Neurosurgery in Novosibirsk, does something the surgical literature rarely bothers with: it asks who the patient is. The answer matters because the same psychological and cognitive variables that this group documents are the ones that predict how a person copes with pain that surgery does not fully erase.
What the data shows
The patient group did not merely report more distress — they performed worse on cold cognitive tasks. Working memory (backward digit span) and verbal fluency were both reduced relative to controls, and visuoconstructive performance on the Rey figure contributed to a model accounting for nearly a third of pain-intensity variance. Alexithymia stands out here. Patients with trigeminal neuralgia struggled to identify and name internal emotional states, a profile long associated with somatic amplification and poorer response to talk-based interventions.
The personality picture is coherent rather than scattered: high harm avoidance, high catastrophizing, low self-transcendence. This is not a portrait of "anxious patients." It is a description of people whose interoceptive and emotional processing is constrained, and who are simultaneously carrying objective working-memory load. When pain is chronic and the emotional vocabulary to metabolize it is thin, the body becomes the channel of report.
For your practice
If you see chronic facial-pain patients — and pain clinics refer them often — do not assume that a clean surgical indication makes psychological assessment optional. Screen for alexithymia (TAS-20) before assuming a patient can engage with standard cognitive or emotion-focused work; a high score predicts that interoceptive-labeling and body-based approaches will need to come first, before insight-oriented techniques have anything to grip. The verbal-fluency and working-memory findings also argue for slowing the pace: shorter sessions, written between-session aids, less reliance on the patient holding complex reframes in mind.
Severe facial pain is treated as a surgical wiring fault, but the patient who lives with it often cannot name what they feel — and that, not the vessel, is what the therapist meets.
Cross-sectional design cannot establish whether alexithymia and cognitive slowing precede the pain or result from it, and the single-center surgical sample may not generalize to community pain populations.