Evidence map›Paper›PMID 40979533›Full record

ArticleFrontiers in neuroscience2025

Somatosensory cross-modal activation and changes in cortical somatosensory evoked potential responses in single-sided deafness: an EEG study.

Ghislain Sofack, Kotaiba Raouafi, Sven P Heinrich, Antje Aschendorff, Thomas Wesarg, Susan Arndt, Pascale Sandmann, Iva Speck

Abstract read
In one paragraph

Article in Frontiers in neuroscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

8 authors.

Ghislain SofackDepartment of Otorhinolaryngology-Head and Neck Surgery, Medical Center - University of Freiburg, Freiburg, Germany.
Kotaiba RaouafiDepartment of Otorhinolaryngology-Head and Neck Surgery, Medical Center - University of Freiburg, Freiburg, Germany.
Sven P HeinrichEye Center, Medical Center - University of Freiburg, Freiburg, Germany.
Antje AschendorffDepartment of Otorhinolaryngology-Head and Neck Surgery, Medical Center - University of Freiburg, Freiburg, Germany.
Thomas WesargDepartment of Otorhinolaryngology-Head and Neck Surgery, Medical Center - University of Freiburg, Freiburg, Germany.
Susan ArndtDepartment of Otorhinolaryngology-Head and Neck Surgery, Medical Center - University of Freiburg, Freiburg, Germany.
Pascale SandmannDepartment of Otorhinolaryngology-Head and Neck Surgery, University of Oldenburg, Oldenburg, Germany.
Iva SpeckDepartment of Nuclear Medicine, Medical Center - University of Freiburg, Freiburg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The neural mechanisms underlying somatosensory processing in individuals with acquired single-sided deafness (SSD) and potential central neuronal cross-modal reorganization remain largely unexplored. This study investigates the impact of SSD on somatosensory perception and attentional processing. Methods: Electrophysiological responses using EEG, and behavioral measures (discrimination thresholds, hit rates and reaction times) were assessed in adults with acquired SSD and normal-hearing (NH) controls for vibrotactile stimulation at two distinct frequencies. Differences in cortical somatosensory evoked potentials between adults with acquired SSD and normal-hearing (NH) controls, focusing on peak amplitudes and peak times of key event-related potential components (P50, N70, P100, N140, and P3b) and their cortical generators were assessed. Results: While both groups exhibited comparable behavioral performance, significant differences emerged in electrophysiological responses. Individuals with SSD showed increased P3b amplitude (albeit non-significant) and significantly delayed P3b peak times, indicating that individuals with acquired SSD exhibit alterations in attentional mechanisms associated with somatosensory perception. In addition, source localization analysis of the P50 component using standardized low-resolution brain electromagnetic tomography (sLORETA) revealed group differences in cortical activation patterns, with SSD individual showing additional recruitment of auditory-related areas, including the superior temporal gyrus, the middle temporal gyrus and the insula. This further supports the notion of compensatory neuroplasticity in auditory pathways following severe to profound unilateral hearing loss. Conclusion: Our results indicate that SSD is associated with neural reorganization in somatosensory and auditory pathways. The observed modifications in both early and late somatosensory responses, coupled with alterations in source activity, suggest that individuals with SSD engage alternative neural mechanisms when processing vibrotactile stimuli, differing from the typical patterns observed in NH individuals. Understanding these changes prior to cochlear implantation will facilitate the development of personalized auditory rehabilitation strategies following cochlear implantation.

Indexed as

cortical somatosensory evoked potentials (CSEP)cross-modal plasticityneuroplasticitysingle-sided deafness (SSD)sLORETAsomatosensory stimulation

Identifiers

PMID40979533
PMCPMC12446350

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.