Simple and Complex Phonic Tics in Tourette Syndrome

Tourette syndrome (TS) is the most common cause of tics. Tics are classified as motor and phonic tics. The latter (previously also referred to as “vocal tics”) are manifested by simple sounds (simple phonic tics) or complex, often semantically meaningful utterances (complex phonic tics). Methods: We...

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Main Authors: José Fidel Baizabal-Carvallo, Joseph Jankovic
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Brain Sciences
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Online Access:https://www.mdpi.com/2076-3425/15/6/620
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author José Fidel Baizabal-Carvallo
Joseph Jankovic
author_facet José Fidel Baizabal-Carvallo
Joseph Jankovic
author_sort José Fidel Baizabal-Carvallo
collection DOAJ
description Tourette syndrome (TS) is the most common cause of tics. Tics are classified as motor and phonic tics. The latter (previously also referred to as “vocal tics”) are manifested by simple sounds (simple phonic tics) or complex, often semantically meaningful utterances (complex phonic tics). Methods: We compared the clinical and demographic features of consecutive patients with TS who exhibited simple and complex phonic tics. Results: There were 149 patients, 117 (78.5%) of whom were males; the mean age at evaluation was 19.61 ± 12.97 years. In total, 35 (23.5%) of these manifested complex phonic tics, and 26 (17.4%) had verbalizations. No statistically significant differences were observed between TS patients with simple versus complex phonic tics with respect to sex, age at onset, age at presentation, or comorbid attention-deficit/hyperactivity disorder or obsessive–compulsive disorder. Patients with complex phonic tics more frequently had trunk tics (<i>p</i> = 0.002), complex motor tics (<i>p</i> < 0.001), copropraxia (<i>p</i> = 0.002), a wider variety of phonic tics (<i>p</i> < 0.001) and greater tic severity (<i>p</i> = 0.001). The multivariate regression analysis showed an independent association between trunk tics and complex phonic tics. Conclusions: Complex phonic tics seem to be part of a more widely distributed, severe, and complex presentation of TS, likely representing a continuum within the spectrum of motor and phonic tics.
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spelling doaj-art-dccb4a7eed344616ad9f4c21fc3de73d2025-08-20T03:27:15ZengMDPI AGBrain Sciences2076-34252025-06-0115662010.3390/brainsci15060620Simple and Complex Phonic Tics in Tourette SyndromeJosé Fidel Baizabal-Carvallo0Joseph Jankovic1Parkinson’s Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston, TX 77030, USAParkinson’s Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston, TX 77030, USATourette syndrome (TS) is the most common cause of tics. Tics are classified as motor and phonic tics. The latter (previously also referred to as “vocal tics”) are manifested by simple sounds (simple phonic tics) or complex, often semantically meaningful utterances (complex phonic tics). Methods: We compared the clinical and demographic features of consecutive patients with TS who exhibited simple and complex phonic tics. Results: There were 149 patients, 117 (78.5%) of whom were males; the mean age at evaluation was 19.61 ± 12.97 years. In total, 35 (23.5%) of these manifested complex phonic tics, and 26 (17.4%) had verbalizations. No statistically significant differences were observed between TS patients with simple versus complex phonic tics with respect to sex, age at onset, age at presentation, or comorbid attention-deficit/hyperactivity disorder or obsessive–compulsive disorder. Patients with complex phonic tics more frequently had trunk tics (<i>p</i> = 0.002), complex motor tics (<i>p</i> < 0.001), copropraxia (<i>p</i> = 0.002), a wider variety of phonic tics (<i>p</i> < 0.001) and greater tic severity (<i>p</i> = 0.001). The multivariate regression analysis showed an independent association between trunk tics and complex phonic tics. Conclusions: Complex phonic tics seem to be part of a more widely distributed, severe, and complex presentation of TS, likely representing a continuum within the spectrum of motor and phonic tics.https://www.mdpi.com/2076-3425/15/6/620Tourette syndrometicsvocal ticsphonic tics
spellingShingle José Fidel Baizabal-Carvallo
Joseph Jankovic
Simple and Complex Phonic Tics in Tourette Syndrome
Brain Sciences
Tourette syndrome
tics
vocal tics
phonic tics
title Simple and Complex Phonic Tics in Tourette Syndrome
title_full Simple and Complex Phonic Tics in Tourette Syndrome
title_fullStr Simple and Complex Phonic Tics in Tourette Syndrome
title_full_unstemmed Simple and Complex Phonic Tics in Tourette Syndrome
title_short Simple and Complex Phonic Tics in Tourette Syndrome
title_sort simple and complex phonic tics in tourette syndrome
topic Tourette syndrome
tics
vocal tics
phonic tics
url https://www.mdpi.com/2076-3425/15/6/620
work_keys_str_mv AT josefidelbaizabalcarvallo simpleandcomplexphonicticsintourettesyndrome
AT josephjankovic simpleandcomplexphonicticsintourettesyndrome