Evidence map›Paper›PMID 32428025›Full record

ArticlePloS one2020

Reduced suprathreshold auditory nerve responses are associated with slower processing speed and thinner temporal and parietal cortex in presbycusis.

Paul H Delano, Chama Belkhiria, Rodrigo C Vergara, Melissa Martínez, Alexis Leiva, Maricarmen Andrade, Bruno Marcenaro, Mariela Torrente, Juan C Maass, Carolina Delgado

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 28% 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, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Relationships Between Auditory Processing and Cognitive Abilities in Adults: A Systematic Review.Journal of speech, language, and hearing research : JSLHR · 2024
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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

10 authors at 4 institutions in 1 country.

Paul H DelanoOtolaryngology Department, Clinical Hospital of the University of Chile, Santiago, Chile.ORCID 0000-0003-2588-4757
Chama BelkhiriaNeuroscience Department, Faculty of Medicine, University of Chile, Santiago, Chile.
Rodrigo C VergaraNeuroscience Department, Faculty of Medicine, University of Chile, Santiago, Chile.
Melissa MartínezNeurology and Neurosurgery Department, Clinical Hospital of the University of Chile, Santiago, Chile.
Alexis LeivaNeuroscience Department, Faculty of Medicine, University of Chile, Santiago, Chile.
Maricarmen AndradeDepartamento de Geriatría, Clínica Universidad de los Andes, Santiago, Chile.
Bruno MarcenaroNeuroscience Department, Faculty of Medicine, University of Chile, Santiago, Chile.
Mariela TorrenteOtolaryngology Department, Clinical Hospital of the University of Chile, Santiago, Chile.
Juan C MaassOtolaryngology Department, Clinical Hospital of the University of Chile, Santiago, Chile.
Carolina DelgadoNeuroscience Department, Faculty of Medicine, University of Chile, Santiago, Chile.
Hospital Clínico de la Universidad de Chile · CLUniversity of Chile · CLInstituto de Neurociencia Biomédica · CLUniversidad de Los Andes, Chile · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Epidemiological evidence shows an association between hearing loss and dementia in elderly people. However, the mechanisms that connect hearing impairments and cognitive decline are still unknown. Here we propose that a suprathreshold auditory-nerve impairment is associated with cognitive decline and brain atrophy.

methodsaudiological, neuropsychological, and brain structural 3-Tesla MRI data were obtained from elders with different levels of hearing loss recruited in the ANDES cohort. The amplitude of waves I (auditory nerve) and V (midbrain) from auditory brainstem responses were measured at 80 dB nHL. We also calculated the ratio between wave V and I as a proxy of suprathreshold brainstem function.

resultswe included a total of 101 subjects (age: 73.5 ± 5.2 years (mean ± SD), mean education: 9.5 ± 4.2 years, and mean audiogram thresholds (0.5-4 kHz): 25.5 ± 12.0 dB HL). We obtained reliable suprathreshold waves V in all subjects (n = 101), while replicable waves I were obtained in 92 subjects (91.1%). Partial Spearman correlations (corrected by age, gender, education and hearing thresholds) showed that reduced suprathreshold wave I responses were associated with thinner temporal and parietal cortices, and with slower processing speed as evidenced by the Trail-Making Test-A and digit symbol performance. Non-significant correlations were obtained between wave I amplitudes and other cognitive domains.

conclusionsThese results evidence that reduced suprathreshold auditory nerve responses in presbycusis are associated with slower processing speed and brain structural changes in temporal and parietal regions.

Indexed as

Acoustic StimulationAgedAged, 80 and overAudiometry, Pure-ToneAuditory PerceptionAuditory ThresholdBrainCochlear NerveCognitive DysfunctionEvoked Potentials, Auditory, Brain StemFemaleHearingHumansMaleNoiseParietal Lobe

Identifiers

PMID32428025
PMCPMC7237004
OpenAlexW3026271392

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.