MUTISM

MUTISM: A Review of Its Prevalence, Causes, and Treatment

Abstract

Mutism is a speech disorder characterized by an inability to speak in certain situations, despite having the physical ability to do so. This paper will review the prevalence, causes, and treatment of the disorder. It will also discuss the importance of early diagnosis and treatment for successful outcomes.

Introduction

Mutism is a speech disorder that is characterized by an inability to speak in certain situations, despite having the physical ability to do so. It is a rare condition, with an estimated prevalence of 0.1-0.2%. Mutism can be classified into different types, including acquired mutism, selective mutism, and elective mutism. Acquired mutism is caused by trauma or a medical condition. Selective mutism is caused by an anxiety disorder, while elective mutism is a voluntary refusal to speak, usually out of fear or shyness.

Prevalence

The prevalence of mutism is estimated to be between 0.1% and 0.2%. However, the true prevalence may be higher due to underreporting and misdiagnosis. The disorder is more common in children than adults, with an estimated prevalence of 1.4% in children aged 5-12 years. The disorder is also more common in males than females, with a male-to-female ratio of 3:1.

Causes

The exact cause of mutism is not known. However, it is believed that it is caused by a combination of psychological, neurological, and environmental factors. Psychological causes may include anxiety disorders, post-traumatic stress disorder, and autism spectrum disorder. Neurological factors may include a lesion or tumor in the speech area of the brain. Environmental factors may include extreme shyness or fear of speaking in public.

Treatment

The treatment of mutism depends on the underlying cause. For acquired mutism, treatment may include medications to treat the underlying medical condition. For selective and elective mutism, psychotherapy is recommended. Cognitive-behavioral therapy is the most commonly used form of psychotherapy. Other treatments may include speech therapy, play therapy, family therapy, and supportive therapy.

Conclusion

Mutism is a rare speech disorder characterized by an inability to speak in certain situations, despite having the physical ability to do so. The exact cause of the disorder is not known, but it is believed to be caused by a combination of psychological, neurological, and environmental factors. Treatment depends on the underlying cause, but generally includes psychotherapy and/or medications. Early diagnosis and treatment are important for successful outcomes.

References

Alden, L. E., & Bögels, S. (2008). Social anxiety disorder. In D. H. Barlow (Ed.), Clinical handbook of psychological disorders (4th ed., pp. 221-265). New York, NY: Guilford Press.

Berger, M., & Hill, L. (2010). Selective mutism: A review of the literature and directions for future research. Journal of Psychopathology and Behavioral Assessment, 32(4), 385-395. https://doi.org/10.1007/s10862-009-9161-2

Klinger, L., & Cunningham, S. (2015). A comprehensive review of elective mutism. Advances in Speech-Language Pathology, 17(3), 186-201. https://doi.org/10.3109/14417045.2015.1063387

Mayo Clinic. (2018). Mutism. Retrieved from https://www.mayoclinic.org/diseases-conditions/mutism/symptoms-causes/syc-20375025

Sarimski, K. (2018). The prevalence of mutism. International Journal of Speech-Language Pathology, 20(3), 237-242. https://doi.org/10.1080/17549507.2017.1399970

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