{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T02:13:48Z","timestamp":1790388828497,"version":"4.1.0"},"reference-count":100,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2021,11,18]],"date-time":"2021-11-18T00:00:00Z","timestamp":1637193600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Deutsche Forschungsgemeinschaft, DFG","award":["Zi 469\/14-2"],"award-info":[{"award-number":["Zi 469\/14-2"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Brain Sciences"],"abstract":"<jats:p>In the present study, we investigated if individuals with neurogenic speech sound impairments of three types, Parkinson\u2019s dysarthria, apraxia of speech, and aphasic phonological impairment, accommodate their speech to the natural speech rhythm of an auditory model, and if so, whether the effect is more significant after hearing metrically regular sentences as compared to those with an irregular pattern. This question builds on theories of rhythmic entrainment, assuming that sensorimotor predictions of upcoming events allow humans to synchronize their actions with an external rhythm. To investigate entrainment effects, we conducted a sentence completion task relating participants\u2019 response latencies to the spoken rhythm of the prime heard immediately before. A further research question was if the perceived rhythm interacts with the rhythm of the participants\u2019 own productions, i.e., the trochaic or iambic stress pattern of disyllabic target words. For a control group of healthy speakers, our study revealed evidence for entrainment when trochaic target words were preceded by regularly stressed prime sentences. Persons with Parkinson\u2019s dysarthria showed a pattern similar to that of the healthy individuals. For the patient groups with apraxia of speech and with phonological impairment, considerably longer response latencies with differing patterns were observed. Trochaic target words were initiated with significantly shorter latencies, whereas the metrical regularity of prime sentences had no consistent impact on response latencies and did not interact with the stress pattern of the target words to be produced. The absence of an entrainment in these patients may be explained by the more severe difficulties in initiating speech at all. We discuss the results in terms of clinical implications for diagnostics and therapy in neurogenic speech disorders.<\/jats:p>","DOI":"10.3390\/brainsci11111524","type":"journal-article","created":{"date-parts":[[2021,11,18]],"date-time":"2021-11-18T08:53:56Z","timestamp":1637225636000},"page":"1524","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["In Time with the Beat: Entrainment in Patients with Phonological Impairment, Apraxia of Speech, and Parkinson\u2019s Disease"],"prefix":"10.3390","volume":"11","author":[{"given":"Ingrid","family":"Aichert","sequence":"first","affiliation":[{"name":"Clinical Neuropsychology Research Group, Institute of Phonetics and Speech Processing, Ludwig-Maximilians-Universit\u00e4t M\u00fcnchen, 80799 Munich, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katharina","family":"Lehner","sequence":"additional","affiliation":[{"name":"Clinical Neuropsychology Research Group, Institute of Phonetics and Speech Processing, Ludwig-Maximilians-Universit\u00e4t M\u00fcnchen, 80799 Munich, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simone","family":"Falk","sequence":"additional","affiliation":[{"name":"International Laboratory for Brain, Music and Sound Research (BRAMS), D\u00e9partement de Linguistique et de Traduction, Universit\u00e9 de Montr\u00e9al, Montr\u00e9al, QC H3C 3J7, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mona","family":"Sp\u00e4th","sequence":"additional","affiliation":[{"name":"Neolexon, Limedix GmbH, 80538 Munich, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mona","family":"Franke","sequence":"additional","affiliation":[{"name":"Clinical Neuropsychology Research Group, Institute of Phonetics and Speech Processing, Ludwig-Maximilians-Universit\u00e4t M\u00fcnchen, 80799 Munich, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5760-1232","authenticated-orcid":false,"given":"Wolfram","family":"Ziegler","sequence":"additional","affiliation":[{"name":"Clinical Neuropsychology Research Group, Institute of Phonetics and Speech Processing, Ludwig-Maximilians-Universit\u00e4t M\u00fcnchen, 80799 Munich, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,11,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"43","DOI":"10.1016\/j.actpsy.2014.12.002","article-title":"Bridging music and speech rhythm: Rhythmic priming and audio\u2013motor training affect speech perception","volume":"155","author":"Cason","year":"2015","journal-title":"Acta Psychol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1185","DOI":"10.3389\/fpsyg.2014.01185","article-title":"Neurobiological foundations of neurologic music therapy: Rhythmic entrainment and the motor system","volume":"5","author":"Thaut","year":"2015","journal-title":"Front. 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