This study introduces and evaluates Rhythmic Amplitude Modulated Vibrational (RAM-Vib) stimulation for improving speech recall and reducing cognitive load in noisy environments. Building on multisensory integration and neural entrainment theories, three experiments tested and refined RAM-Vib for Japanese speech in noise....
Findings are preliminary and from a single study; no change to clinical practice is warranted until replicated in larger, controlled trials with hearing-impaired populations.
If replicated, vibrotactile stimulation as a cognitive-load-reducing aid could open a new non-acoustic channel for supporting speech understanding in hearing-impaired listeners.
- 01RAM-Vib delivers rhythmic, amplitude-modulated vibrations to the skin to supplement auditory speech perception.
- 02The study assessed effects on speech recall and cognitive load in noisy listening conditions.
- 03Results suggest RAM-Vib may ease the mental effort required to follow speech in noise.
- 04The intervention is non-invasive and could potentially complement existing hearing devices.
- 05Further replication in hearing-impaired populations is needed before clinical conclusions can be drawn.
Rhythmic amplitude modulated vibrotactile stimulation improves speech recall in noisy environments.
studypartially supportedRAM-Vib stimulation reduces cognitive load during speech perception in noise.
studypartially supported- PMID
- 42071046
- DOI
- 10.1038/s41598-026-49489-w.
- Journal
- Scientific Reports
- Publication type
- research_article
- Evidence level
- 2b
- Population
- Participants exposed to speech in noisy listening conditions (population details not fully specified in abstract)
- Intervention
- Rhythmic Amplitude Modulated Vibrotactile (RAM-Vib) stimulation
- Comparator
- No vibrotactile stimulation (control condition)
Primary outcomes
Speech recall accuracy in noise; Cognitive load during speech perception