A genome-wide association study of a rage-related misophonia symptom and the genetic link with audiological traits, psychiatric disorders, and personality

Misophonia in autism: A systematic review of prevalence, clinical features, and comorbidities

BACKGROUND

Misophonia, characterized by intense emotional reactions to specific sounds, is increasingly studied in autism spectrum disorder (ASD) and related mental health conditions such as obsessive-compulsive disorder (OCD), anxiety, and depression. Autistic individuals often have sensory sensitivities, which may predispose them to misophonia. However, the relationship between misophonia, sensory sensitivities, and psychiatric comorbidities in autism remains underexplored.

AIMS

This systematic review examines the prevalence, clinical characteristics, comorbidities, and treatment outcomes of misophonia in autistic individuals and related conditions. It also explores the neurobiological links between misophonia and sensory sensitivities and their impact on quality of life, aiming to inform diagnostic and intervention strategies.

METHODS

A systematic search was conducted across seven databases following PRISMA guidelines. Studies assessing misophonia in autism, using established diagnostic criteria, were included. The risk of bias was evaluated using ROBINS-I, AXIS, Venice criteria, and JBI tools.

RESULTS

Fourteen studies (n = 89,889 participants) met inclusion criteria. Misophonia prevalence in autism ranged from 12.8 % to 35.5 %, with 79 % of autistic individuals with misophonia also experiencing psychiatric comorbidities such as anxiety, OCD, and depression. Clinical characteristics included intense emotional reactions to specific sound triggers (e.g., eating, breathing) and significant disruptions in daily functioning. Sensory sensitivities were reported in 21.4 % of cases, highlighting the overlap between misophonia and broader sensory processing challenges in autism. There were only two intervention studies: one demonstrating the efficacy of risperidone in reducing misophonia severity, and another suggesting cognitive-behavioral therapy (CBT) and tinnitus retraining therapy (TRT) as potential management strategies. Quality assessment revealed varying levels of bias, particularly in observational studies, which often lacked robust randomization and blinding.

CONCLUSION

Misophonia is prevalent in autism and frequently co-occurs with psychiatric conditions and sensory hypersensitivities. Standardized diagnostic tools and tailored interventions are needed to improve clinical outcomes. Future research should explore longitudinal trajectories, genetic and environmental influences, and effective management strategies to address the complex interplay between misophonia, sensory sensitivities, and autism.

Network analysis of misophonia symptoms using the Duke Misophonia Questionnaire

BACKGROUND

Misophonia is a complex disorder characterized by a strong aversion to specific sounds, leading to significant distress and impairment. While the Duke Misophonia Questionnaire (DMQ) is one of the most comprehensive and validated measures for assessing misophonia, the relative importance of specific subscales and items within the DMQ remains unclear. Network analysis enables an understanding of the interconnections among subscales, providing insights into which parts of the measure are most central to the others. This study employed network analysis to examine the interconnections among DMQ subscales and identify the most central components of misophonia symptomatology.

METHODS

Network analysis was conducted on DMQ data from 144 adults with varying levels of misophonia symptoms. Four network models were examined: overall misophonia, symptoms, beliefs, and impairment. Sex differences were also explored.

RESULTS

The Impairment subscale emerged as the most central in the overall network for both males and females. Key items included cognitive reactions ("I need to get away from the sound," "I thought about physically hurting the person making the sound") as well as affective reactions (panic, anger) in the symptom sub-network, non-acceptance of misophonia beliefs ("I hate being like this") in the belief sub-network, and deterioration of self-esteem due to misophonia in the impairment sub-network. Females reported more severe cognitive and physiological symptoms than males.

CONCLUSIONS

The DMQ Impairment subscale and specific items identified as most central in each network may represent key aspects of misophonia symptomatology. Prioritizing these components in assessment and intervention efforts may be beneficial when appropriate.

The prevalence of misophonia in a representative population-based survey in Germany

PURPOSE

Misophonia is a new disorder, currently defined as significant emotional and physiological distress when exposed to certain sounds. Although there is a growing body of literature on the characteristics of the disorder, the prevalence in the general population is still relatively unknown. This study therefore aims at determining the prevalence and symptom severity of misophonia in a large and representative general population sample in Germany.

METHODS

To examine the prevalence of misophonic sounds, misophonic reactions and misophonia severity, a cross-sectional population representative survey in Germany has been conducted. Participants (N = 2.522) were questioned retrospectively about misophonic symptoms using the Amsterdam Misophonie Scale - Revised (AMISOS-R).

RESULTS

Overall 33.3% reported to be sensitive to at least one specific misophonic sound. Within the total sample, subthreshold symptoms were reported by 21.3%, mild symptoms were reported by 9.9%, moderate to severe symptoms were reported by 2.1%, and severe to extreme symptoms were reported in 0.1% of participants.

CONCLUSION

Based on the diverging presentations and prevalence rates of misophonic sounds, reactions and symptoms according to the severity, it seems worthwhile to conceptualize misophonia as a rather continuous spectrum disorder (subthreshold, mild, moderate to severe), still taking into account that an additional categorical diagnostic approach might be necessary to derive a diagnosis in clinical practice.

Comparison of GWAS results between de novo tinnitus and cancer treatment-related tinnitus suggests distinctive roles for genetic risk factors

Tinnitus is a common sensorineural complication that can occur de novo or after cancer treatments involving cisplatin or radiotherapy. Considering the heterogeneous etiology and pathophysiology of tinnitus, the extent to which shared genetic risk factors contribute to de novo tinnitus and cancer treatment-induced tinnitus is not clear. Here we report a GWAS for de novo tinnitus using the UK Biobank cohort with nine loci showing significantly associated variants (p < 5 × 10-8). To our knowledge, significant associations in four of these loci are novel, represented by rs7336872, rs115125870, rs1532898 and rs2537, with UBAC2, NUDT9, TGM4 and MPP2 as their nearest protein coding genes, respectively. Through quantitative comparison of results from GWAS of de novo tinnitus with GWAS of radiation-induced tinnitus, two intronic variants (rs7023227 and rs3780395) from a locus within immunoregulatory gene PD-L1 (CD274) reached the replication threshold using comparison thresholds of 10-5 and 10-4, with no other shared genetic risk factors identified. We did not observe shared genetic risk factors between de novo and cisplatin-induced tinnitus. Our results suggest that genetic risk factors are mainly distinct based on etiology of tinnitus and future efforts to study, prevent or treat tinnitus are expected to benefit from strategies that allow for distinction of cases based on the primary environmental risk factor.

A Systematic Review on the Genetic Contribution to Tinnitus

PURPOSE

To assess the available evidence to support a genetic contribution and define the role of common and rare variants in tinnitus.

METHODS

After a systematic search and quality assessment, 31 records including 383,063 patients were selected (14 epidemiological studies and 17 genetic association studies). General information on the sample size, age, sex, tinnitus prevalence, severe tinnitus distribution, and sensorineural hearing loss was retrieved. Studies that did not include data on hearing assessment were excluded. Relative frequencies were used for qualitative variables to compare different studies and to obtain average values. Genetic variants and genes were listed and clustered according to their potential role in tinnitus development.

RESULTS

The average prevalence of tinnitus estimated from population-based studies was 26.3% for any tinnitus, and 20% of patients with tinnitus reported it as an annoying symptom. One study has reported population-specific differences in the prevalence of tinnitus, the white ancestry being the population with a higher prevalence. Genome-wide association studies have identified and replicated two common variants in the Chinese population (rs2846071; rs4149577) in the intron of TNFRSF1A, associated with noise-induced tinnitus. Moreover, gene burden analyses in sequencing data from Spanish and Swede patients with severe tinnitus have identified and replicated ANK2, AKAP9, and TSC2 genes.

CONCLUSIONS

The genetic contribution to tinnitus is starting to be revealed and it shows population-specific effects in European and Asian populations. The common allelic variants associated with tinnitus that showed replication are associated with noise-induced tinnitus. Although severe tinnitus has been associated with rare variants with large effect, their role on hearing or hyperacusis has not been established.

Misophonia in Children and Adolescents: Age Differences, Risk Factors, Psychiatric and Psychological Correlates. A Pilot Study with Mothers' Involvement

Misophonia is a type of disorder characterized by decreased sound tolerance. While it typically begins in childhood, research on its characteristics in this population is limited. We assessed 90 children aged 7-18 with and without misophonia, along with their mothers, using interviews, questionnaires, and performance-based tests. Younger children with misophonia were more likely to use aggression in response to triggers than older, while adolescents largely reported self-harm during triggers. Children with misophonia did not differ from their peers in terms of ADHD, ODD, ASD, dyslexia, social and emotional competencies, head injuries, epilepsy, tinnitus, being prematurely born, or delivered via cesarean sections. However, they had significantly higher symptoms of anxiety and depression, more frequent occurrences of OCD, migraines, and psychosomatic complaints. Their mothers self-reported postpartum depression significantly more frequently than mothers in the control group. There is a need for further research on pediatric misophonia, with the involvement and assessment of parents.