Evidence map›Paper›PMID 33401098›Full record

ArticleCortex; a journal devoted to the study of the nervous system and behavior2021

The role of the superior parietal lobule in lexical processing of sign language: Insights from fMRI and TMS.

A Banaszkiewicz, Ł Bola, J Matuszewski, M Szczepanik, B Kossowski, P Mostowski, P Rutkowski, M Śliwińska, K Jednoróg, K Emmorey and 1 more

Abstract read
In one paragraph

Article in Cortex; a journal devoted to the study of the nervous system and behavior, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
–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

20 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

11 authors.

A BanaszkiewiczLaboratory of Brain Imaging, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
Ł BolaLaboratory of Brain Imaging, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
J MatuszewskiLaboratory of Brain Imaging, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
M SzczepanikLaboratory of Brain Imaging, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
B KossowskiLaboratory of Brain Imaging, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
P MostowskiSection for Sign Linguistics, Faculty of Polish Studies, University of Warsaw, Warsaw, Poland.
P RutkowskiSection for Sign Linguistics, Faculty of Polish Studies, University of Warsaw, Warsaw, Poland.
M ŚliwińskaDepartment of Psychology, University of York, Heslington, UK.
K JednorógLaboratory of Language Neurobiology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
K EmmoreyLaboratory for Language and Cognitive Neuroscience, San Diego State University, San Diego, USA.
A MarchewkaLaboratory of Brain Imaging, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland. Electronic address: a.marchewka@nencki.edu.pl.

Funding

Language, Modality and the BrainR01DC010997 · NIDCD · SAN DIEGO STATE UNIVERSITY · PI KAREN EMMOREY · 2010 to 2026
$8.6M
NIDCD NIH HHS R01 DC010997
6 · The paper itself

Abstract

There is strong evidence that neuronal bases for language processing are remarkably similar for sign and spoken languages. However, as meanings and linguistic structures of sign languages are coded in movement and space and decoded through vision, differences are also present, predominantly in occipitotemporal and parietal areas, such as superior parietal lobule (SPL). Whether the involvement of SPL reflects domain-general visuospatial attention or processes specific to sign language comprehension remains an open question. Here we conducted two experiments to investigate the role of SPL and the laterality of its engagement in sign language lexical processing. First, using unique longitudinal and between-group designs we mapped brain responses to sign language in hearing late learners and deaf signers. Second, using transcranial magnetic stimulation (TMS) in both groups we tested the behavioural relevance of SPL's engagement and its lateralisation during sign language comprehension. SPL activation in hearing participants was observed in the right hemisphere before and bilaterally after the sign language course. Additionally, after the course hearing learners exhibited greater activation in the occipital cortex and left SPL than deaf signers. TMS applied to the right SPL decreased accuracy in both hearing learners and deaf signers. Stimulation of the left SPL decreased accuracy only in hearing learners. Our results suggest that right SPL might be involved in visuospatial attention while left SPL might support phonological decoding of signs in non-proficient signers.

Indexed as

DeafnessSign LanguageHumansMagnetic Resonance ImagingParietal LobeTranscranial Magnetic StimulationfMRISign languageSuperior parietal lobuleTMSVisuospatial attention

Identifiers

PMID33401098
PMCPMC8543843

What OpenQuestion holds

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Registered trials

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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.