Evidence map›Paper›PMID 30871801›Full record

ArticleParkinsonism & related disorders2019

Effect of deep brain stimulation on vocal motor control mechanisms in Parkinson's disease.

Roozbeh Behroozmand, Karim Johari, Ryan M Kelley, Efthymia C Kapnoula, Nandakumar S Narayanan, Jeremy D W Greenlee

Open access · greenAbstract read
In one paragraph

Article in Parkinsonism & related disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
1.1field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Impact of subthalamic nucleus deep brain stimulation on voice and speech in Parkinson's disease.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Roozbeh BehroozmandSpeech Neuroscience Lab, Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29028, USA. Electronic address: r-behroozmand@sc.edu.
Karim JohariSpeech Neuroscience Lab, Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29028, USA.
Ryan M KelleyMedical Scientist Training Program, University of Iowa, Iowa City, IA 52242, USA; Program in Neuroscience, University of Iowa, Iowa City, IA 52242, USA.
Efthymia C KapnoulaBasque Center on Cognition, Brain and Language, San Sebastian, Spain.
Nandakumar S NarayananDepartment of Neurology, University of Iowa, Iowa City, IA 52242, USA.
Jeremy D W GreenleeHuman Brain Research Lab, Department of Neurosurgery, University of Iowa, Iowa City, IA 52242, USA.
University of Iowa · USUniversity of South Carolina · USBasque Center on Cognition, Brain and Language · ES

Funding

SHORT-TERM TRAINING: STUDENTS IN HEALTH PROF. SCHOOLST35HL007485 · NHLBI · UNIVERSITY OF IOWA · PI ROGHAIR, ROBERT D · 1985 to 2019
$4.3M
Mid-frontal delta/theta rhythms and cognitive control in PDR01NS100849 · NINDS · UNIVERSITY OF IOWA · PI JAMES F CAVANAGH, Nandakumar Narayanan · 2017 to 2026
$3.6M
NINDS NIH HHS R01 NS100849
6 · The paper itself

Abstract

introductionDeep brain stimulation (DBS) of the subthalamic nucleus (STN) is an effective treatment for limb motor symptoms in Parkinson's disease (PD); however, its effect on vocal motor function has yielded conflicted and highly variable results. The present study investigated the effects of STN-DBS on the mechanisms of vocal production and motor control.

methodsA total of 10 PD subjects with bilateral STN-DBS implantation were tested with DBS ON and OFF while they performed steady vowel vocalizations and received randomized upward or downward pitch-shift stimuli (±100 cents) in their voice auditory feedback.

resultsData showed that the magnitude of vocal compensation responses to pitch-shift stimuli was significantly attenuated during DBS ON vs. OFF (p = 0.012). This effect was direction-specific and was only observed when subjects raised their voice fundamental frequency (F0) in the opposite direction to downward stimuli (p = 0.019). In addition, we found that voice F0 perturbation (i.e. jitter) was significantly reduced during DBS ON vs. OFF (p = 0.022), and this DBS-induced modulation was positively correlated with the attenuation of vocal compensation responses to downward pitch-shift stimuli (r = +0.57, p = 0.028).

conclusionsThese findings provide the first data supporting the role of STN in vocal F0 motor control in response to altered auditory feedback. The DBS-induced attenuation of vocal compensation responses may result from increased inhibitory effects of the subcortical hyperdirect (fronto-subthalamic) pathways on the vocal motor cortex, which can help stabilize voice F0 and ameliorate vocal motor symptoms by impeding PD subjects' abnormal (i.e. overshooting) vocal responses to alterations in the auditory feedback.

Indexed as

Deep Brain StimulationAgedFeedback, SensoryFemaleHumansMiddle AgedMotor CortexParkinson DiseaseSubthalamic NucleusVoiceAuditory feedbackDeep brain stimulationParkinson's diseaseSubthalamic nucleusVoice motor control

Identifiers

PMID30871801
PMCPMC9585766
OpenAlexW2920854597

What OpenQuestion holds

Textmetadata
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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.