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Care status: Transcranial ultrasound stimulation for schizophrenia is investigational. This pilot does not establish a new FDA-authorized treatment, long-term safety or an alternative to antipsychotic medication and appropriate psychosocial care.
What did the researchers test?
Ten adults with schizophrenia or schizoaffective disorder and ongoing psychotic symptoms each received a real and a sham stimulation session, in randomized order, separated by a week. Using MRI guidance, the research team targeted a deep brain area called the right globus pallidus interna (GPi). The active stimulation session lasted 10 minutes. Delusions, auditory hallucinations, cognition and side effects were assessed before and after sessions, with observations through seven days.
OVERALL DELUSION-RATING SIGNAL
p = 0.002
The mixed-effects comparison across post-session observations favored active ultrasound over sham (Cohen's d = 0.68), a preliminary symptom-rating difference.
HALLUCINATION RATINGS
No significant difference
Auditory-hallucination scores did not improve significantly more after ultrasound than after sham. Delusions and hallucinations were measured separately.
SEVEN-DAY EXPLORATORY RESULT
Adjusted p = 0.08
The day-seven comparison was nominally significant, but not significant after the study's Holm multiple-testing adjustment. A lasting benefit was not established.
SHORT-TERM TOLERABILITY
No serious events reported
Transient symptoms, including fatigue and headache, occurred. Ten participants and brief follow-up cannot reveal uncommon, delayed or repeated-treatment risks.
What makes this finding interesting?
Transcranial ultrasound may allow researchers to influence selected deep-brain circuits without implanting electrodes. That could eventually help investigate neurological pathways involved in psychosis. However, this study was designed as an exploratory safety and preliminary-efficacy test, not definitive evidence that ultrasound improves people's daily functioning or produces durable relief.
Why the seven-day detail matters
The study's overall mixed-effects analysis was significant, but the separate exploratory comparison at day seven was not statistically significant after correction for testing several time points. The brief delusion measure also has no established cutoff for a clinically meaningful treatment response. The safest interpretation is an early signal that needs independent replication, not proof of a week-long effect.
How is ultrasound different from TMS or DBS?
TMS uses external magnetic pulses; DBS involves surgically implanted electrodes; ultrasound uses sound-wave energy to investigate or influence targets. The devices, targeting, risks and regulatory indications differ. No approval for another stimulation technique should be interpreted as authorization for ultrasound to treat schizophrenia.
Questions to ask about experimental brain stimulation
- Is the treatment available only in a properly monitored research study?
- How many people have been studied, what comparison was used and how long were they followed?
- What are the safety safeguards, and what is known about repeated exposure?
- Do outcomes include meaningful changes in function, daily-life participation and distress?
- What established options can help with persistent symptoms now?
What comes next?
Larger sham-controlled trials, longer follow-up, multiple-session protocols and better individualized targeting are needed. People should not attempt unsupervised brain stimulation or change established treatment based on this exploratory report.
Original study and sources
- npj Acoustics — Qi and colleagues, October 20, 2026 ↗
Original peer-reviewed sham-controlled crossover pilot, including corrected time-point analyses.
- ClinicalTrials.gov — NCT05643196 ↗
Registered research study and protocol details.
- NYU Langone — original institutional announcement ↗
Research context; the original journal study is the primary evidence.
- NIMH — Schizophrenia ↗
Current treatment and care guidance.
Evidence checked October 22, 2026 · Educational editorial draft; independent clinical review pending. This is not individualized medical advice.