Summary: A Yale study suggests that group songwriting and collaborative music-making can help people experiencing psychosis reconnect with reality. The research applies the predictive coding framework — the brain’s method of anticipating sensory input — to explain how musical structure and expectation can stabilize perception and social engagement.
Participants with schizophrenia and frequent auditory hallucinations joined weekly songwriting workshops and reported reductions in paranoia alongside improved social interaction. The intervention emphasizes rhythm, melody, and predictable musical cues as tools to retrain the brain’s prediction systems.
Key Findings:
- Reduced Paranoia: While hallucinations did not disappear for every participant, those with milder symptoms experienced a measurable drop in paranoia after attending weekly two-hour group songwriting sessions.
- The “We” Shift: Language analysis showed participants used fewer first-person pronouns (I, me, mine) and more plural pronouns (we, us, ours) after the program, indicating a move away from social isolation toward group belonging.
- Fewer Side Effects Than Medication: Unlike some antipsychotic medications that can cause lethargy or cognitive dulling, the music-based approach produced no negative side effects; many participants became more expressive and engaged.
- Potential Lasting Brain Changes: The lead investigator proposes that sustained music-making might rewire maladaptive prediction circuits in the brain, producing durable improvements in how the brain anticipates sensory events.
Source: Yale
Predictive coding and music
Our brains constantly forecast incoming sensory information — sight, sound, smell, and touch — using stored experience. When you bite an apple, for example, you expect a sweet crunch because your past encounters with apples inform that expectation. Neuroscientists call this process predictive coding: it reduces processing demands and helps the brain learn quickly. But when prediction signals dominate or misfire, they can contribute to hallucinations and delusions associated with psychosis.
Published April 9 in the journal Psychosis, this Yale study tested whether music’s predictable patterns can guide people with psychosis back toward accurate perception and social connection. “Music provides a clear structure for making predictions,” says Philip Corlett, PhD, associate professor of psychiatry at Yale School of Medicine and senior author of the study. Singing a familiar line such as “Sweet Caroline” immediately cues the listener for the expected melody; that reliably confirmed expectation may be therapeutic for a brain that struggles to distinguish internal noise from external reality.
Corlett’s team worked with music facilitator Adam Christoferson of the Citizens Community Collaborative and Musical Intervention in New Haven to run group songwriting sessions for people living with psychosis. Observing patients who appeared more animated and connected after music-making inspired the formal research.
Group music eases paranoia
The study enrolled 20 adults (ages 18–65) with schizophrenia or regular distressing auditory hallucinations. Over six weeks, participants completed psychometric assessments for hallucinations and paranoia and took part in interviews. For four weekly sessions they formed groups of five and spent two hours each week writing and recording original songs with guidance from a professional musician. Each group had access to microphones, guitars, keyboards, and drums and was encouraged to create their own lyrics.
At the end of the program participants repeated the clinical questionnaires and interviews. The team used symptom scales to track paranoia and hallucination changes and applied the Linguistic Inquiry and Word Count (LIWC) tool to quantify language shifts across sessions.
Results showed no uniform decrease in hallucination frequency, but participants with less severe hallucinations reported significant reductions in paranoia. Language analysis revealed a notable reduction in first-person pronoun use and increases in plural pronouns, words associated with achievement, agency, cognitive processing, and positive emotions — all consistent with growing social engagement and emotional expression.
Deanna Greco, PhD student and first author, notes that even when symptoms persisted, group music-making helped participants reconnect with others and express creativity, counteracting isolation and stigma common in psychosis.
For Christoferson, the outcomes validate years of community-based practice: songwriting offers participants identity, emotional expression, and social role, which can improve overall functioning and quality of life.
Corlett emphasizes that music-based interventions do not yet replace pharmacological treatment but can complement clinical care. Music workshops appear to treat the whole person, increasing motivation and community involvement without the adverse effects associated with some antipsychotic medications. The research team is now investigating how group music-making alters brain circuits and whether these changes are sustained over time.
Key Questions Answered:
A: Simple, predictable musical phrases force the brain to form an expectation and then immediately confirm it. For people whose brains struggle to separate internal noise from external reality, this reliable “call and response” can retrain predictive processing and strengthen the ability to anticipate sensory events correctly.
A: Not at this time. The study shows music-based group interventions are a powerful non-clinical tool that can reduce social isolation and boost creativity without the side effects common to some medications. They are best seen as a complementary approach that targets social functioning and engagement.
A: Pronoun use reflects social orientation. A shift from “I” to “we” suggests a psychological move from isolation toward community and shared experience, indicating improved social connection and reduced emotional withdrawal.
Editorial Notes:
- This article was edited by a Neuroscience News editor.
- Journal paper reviewed in full.
- Additional context added by staff.
About this research
Author: Colleen Moriarty ([email protected])
Source: Yale
Contact: Colleen Moriarty – Yale
Image: Image credited to Neuroscience News
Original Research: Closed access. “Song-making in a group (SING): a longitudinal study for people experiencing psychosis” by Deanna L. Greco et al., Psychosis. DOI: 10.1080/17522439.2026.2634654
Abstract
Song-making in a group (SING): a longitudinal study for people experiencing psychosis
Background
Creative expression turns inner experience into shared, tangible work. Music-making creates predictable sensory patterns that both creators and listeners can anticipate, reinforcing identity and social presence. For people facing isolation and alienation, group music-making may foster agency and belonging. This study examines how collaborative songwriting affects recovery-related outcomes in people experiencing psychosis.
Methods
Twenty participants with psychosis took part in four group songwriting sessions, each involving five participants plus a music facilitator. The study combined symptom-specific measures with objective linguistic analysis. Paranoia and hallucination scales were administered before and after the intervention, and language changes were quantified using Linguistic Inquiry and Word Count (LIWC 2022).
Results
While hallucination frequency did not uniformly decline, participants with less severe hallucinations reported lower paranoia following the sessions. Linguistic analysis showed reduced use of the first-person pronoun “I” and increased use of “we,” along with rises in language related to accomplishment, agency, cognitive processing, and positive emotion.
Discussion
The observed language shifts and symptom improvements suggest that group songwriting can translate into greater social engagement and emotional expression outside the workshop setting. Overall, the study supports the potential of collaborative music-making as a recovery-oriented intervention for people experiencing psychosis.