Voice therapy and recognising emotions
Researchers are studying whether intensive voice treatment affects how people with Parkinson's perceive emotions.
Testing a treatment or activity · Study reference: IRCT20200630047961N1
Plain-language introduction written with AI from the registry; not independently checked by a clinician. Read the original details below ↓
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- Start (reported date)
- 2020-07-22
Planned dates can move. A study finishing does not tell us when a paper will be published.
No results summary has been confirmed in the registry records we imported. See connected papers below; we keep checking after recruitment ends.
Changes we have recorded
- 2026-10-11 — recruiting
These are dates we observed a change, not necessarily the dates it happened.
Papers connected to this study
No connected paper has been found yet. The tracker checks the growing library for study identifiers and registry-linked publications.
Who can join?
Ages 50 years to 65 years · Ask the team who can join
These are starting points, not the full rules. The research team can tell you whether the study is right for your situation.
Read all the rules for taking part
Sex eligibility reported by registry: both
Full study name & original research details
Official study title
The effect of Lee Silverman voice treatment on perception of speech emotional prosody in Parkinson's Disease
Short title used by the registry
The effect of voice therapy on the emotion perception of patients with Parkinson's Disease
Original description
Conditions reported: Parkinson disease.
Registry records for this study
Records are joined using registration identifiers. Titles alone do not establish that two studies are the same.
- IRCT · IRCT20200630047961N1 ↗ — Recruiting; WHO ICTRP processed 2020-08-17; checked 2026-10-14
- Study type
- Interventional
- Interventions
- Intervention group: LSVT treatment: Treatment consists of 4 sessions in 4 consecutive weeks (16 sessions) over a period of one month. The duration of each treatment session is 50-60 minutes and the therapist must have received a certificate of treatment from the LSVT Global Center. Each treatment session consists of two parts. The first part of the daily homework: - The first half of the session (25 minutes) The first task: Maximum stretched movements that are done 15 times to express the vowel / a / with good quality and the highest possible height level. The second task: directional movements, which include 15 times of expressing the vowel / a / with good loudness quality with high pitch and 15 times expressing the vowel / a / with good loudness quality with low pitch. The third task: practical movements, in this section, The patient identifies 10 sentences or phrases that he uses daily (such as good morning), 10 phrases or sentences are repeated 5 times. - The second part of the session (25 minutes) The items worked in the exercises with the same scope and effort, are generalized from daily activities to different and specific speech activities and textures. Sentences or phrases are repeated with a focus on hard work (ie, a list of 20 sentences or phrases that are repeated 10 times). The complexity of the assignments increases over the weeks according to the patient's interests (words> phrases> sentences> reading> conversation). Assignments become more difficult by increasing the length of time (continuity of height for a longer period of time), amplitude (height within normal range), and complexity of tasks (dual processing, background noise, and distractions)..
- Phases
- N/A
- Sponsor
- Iran University of Medical Sciences
- Start date reported by registry
- 2020-07-22 (reported)
Registry updated: Not reported · Status last verified by the registry submitter: Not reported
Registry records retrieved 2026-10-14 (UTC). Individual records may have older updates. Recruitment and eligibility must be confirmed with the study team.
Contact the research team
Public study contacts supplied to the registry. Ask whether recruitment is still open and what participation involves.
Arezoo Saffarian · +98 21 2248 2185 · saffarian.a@iumc.ac.ir
Study locations
Site status can differ from overall study status. “Status not reported” means local availability needs confirmation. Remote participation and travel arrangements must be checked with the team.
Facility not reported
Iran (Islamic Republic of)
Status not reportedThe original descriptions and participation rules come from the registry. Participation is voluntary and does not guarantee benefit.