title: Entraining with another person's speech rhythm: Evidence from healthy speakers and individuals with Parkinson's disease.
abstract: This study examines entrainment of speech timing and rhythm with a model speaker in healthy persons and individuals with Parkinson's. We asked whether participants coordinate their speech initiation and rhythm with the model speaker, and whether the regularity of metrical structure of sentences influences this behaviour. Ten native German speakers with hypokinetic dysarthria following Parkinson's and 10 healthy controls heard a sentence ('prime') and subsequently read aloud another sentence ('target'). Speech material comprised 32 metrically regular and irregular sentences, respectively. Turn-taking delays and alignment of speech rhythm were measured using speech wave analyses. Results showed that healthy participants initiated speech more closely in rhythm with the model speaker than patients. Metrically regular prime sentences induced anticipatory responses relative to metrically irregular primes. Entrainment of speech rhythm was greater in metrically regular targets, especially in individuals with Parkinson's. We conclude that individuals with Parkinson's may exploit metrically regular cues in speech.
authors.affiliation: a Clinical Neuropsychology Research Group (EKN), Institute of Phonetics and Speech Processing , Ludwig-Maximilians-University Munich , Munich , Germany.
authors.forename: Mona
authors.initials: M
authors.lastname: Späth
authors.affiliation: a Clinical Neuropsychology Research Group (EKN), Institute of Phonetics and Speech Processing , Ludwig-Maximilians-University Munich , Munich , Germany.
authors.forename: Ingrid
authors.initials: I
authors.lastname: Aichert
authors.affiliation: b Department of Neurology and Clinical Neurophysiology , Schön Klinik München Schwabing , Munich , Germany.
authors.forename: Andrés O
authors.initials: AO
authors.lastname: Ceballos-Baumann
authors.affiliation: b Department of Neurology and Clinical Neurophysiology , Schön Klinik München Schwabing , Munich , Germany.
authors.forename: Edith
authors.initials: E
authors.lastname: Wagner-Sonntag
authors.affiliation: c Institute of Health and Society, Newcastle University , Newcastle upon Tyne , Great Britain.
authors.forename: Nick
authors.initials: N
authors.lastname: Miller
authors.affiliation: a Clinical Neuropsychology Research Group (EKN), Institute of Phonetics and Speech Processing , Ludwig-Maximilians-University Munich , Munich , Germany.
authors.forename: Wolfram
authors.initials: W
authors.lastname: Ziegler
mesh_terms: D000368:Aged; D001307:Auditory Perception; D003463:Cues; D004401:Dysarthria / Q000628:therapy; D005260:Female; D005858:Germany; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000503:physiopathology* / Q000628:therapy; D013061:Speech Acoustics
keywords: Auditory input; dysarthria; metrical pattern; turn-taking