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Do Visual Cues Make Speech Easier to Understand for Kannada Speakers?

Comparison of Listening Effort Between Auditory-Only and Audiovisual Speech Conditions in Young Native Kannada Speakers - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2026/05/110229
Enrollment
30
Registered
2026-05-08
Start date
Unknown
Completion date
Unknown
Last updated
2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Intervention1: Nil: Nil

Sponsors

Myself Raghavendran T M
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 18-30 years, Native Kannada speakers, which includes male and female Normal hearing sensitivity (PTA more than or equal 20 dBHL at octave frequencies from 250Hz to 8Khz in both ears) Normal or corrected to normal vision and Willingness to participate and provide informed consent

Exclusion criteria

Exclusion criteria: Presence of any otological disorder or history of ear surgery. Neurological, cognitive, or psychological disorders that may affect attention or listening performance History of noise exposure, ototoxic drug use, or speech-language disorders. Participants reporting fatigue, sleep deprivation, or medication use affecting pupil size or cognitive effort during testing sessions.

Design outcomes

Primary

MeasureTime frame
Listening effort across auditory-only and audiovisual speech conditions measured using: Objective measure: Peak pupil dilation - pupillometry Subjective measure: NASA-TLX listening effort scores from 0-100 % ( easy to hard)Timepoint: Baseline hearing screening, lip-reading test, and digit span assessment before experimental listening tasks During experimental conditions assessment across auditory-only and audiovisual conditions at easy, medium, and hard SNR levels Post-condition assessment NASA-TLX and subjective ratings after completion of each modality block

Secondary

MeasureTime frame
NILTimepoint: NIL

Countries

India

Contacts

Public ContactDrArchana G

Manipal college of health professions

archana.maiya@manipal.edu9986516039

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Jun 11, 2026