Arithmetic in the adult deaf signing brain

© 2019 Wiley Periodicals, Inc..

We have previously shown that deaf signers recruit partially different brain regions during simple arithmetic compared to a group of hearing non-signers, despite similar performance. Specifically, hearing individuals show more widespread activation in brain areas that have been related to the verbal system of numerical processing, i.e., the left angular and inferior frontal gyrus, whereas deaf individuals engaged brain areas that have been related to the quantity system of numerical processing, i.e., the right horizontal intraparietal sulcus. This indicates that compared to hearing non-signers, deaf signers can successfully make use of processes located in partially different brain areas during simple arithmetic. In this study, which is a conceptual replication and extension of the above-presented study, the main aim is to understand similarities and differences in neural correlates supporting arithmetic in deaf compared to hearing individuals. The primary objective is to investigate the role of the right horizontal intraparietal gyrus, the left inferior frontal gyrus, the hippocampus, and the left angular gyrus during simple and difficult arithmetic and how these regions are connected to each other. A second objective is to explore what other brain regions support arithmetic in deaf signers. Up to 34 adult deaf signers and the same amount of hearing non-signers will be enrolled in an functional magnetic resonance imaging study that will include simple and difficult subtraction and multiplication. Brain imaging data will be analyzed using whole-brain analysis, region of interest analysis and connectivity analysis. This is the first study to investigate neural underpinnings of arithmetic of different difficulties in deaf individuals.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:98

Enthalten in:

Journal of neuroscience research - 98(2020), 4 vom: 03. Apr., Seite 643-654

Sprache:

Englisch

Beteiligte Personen:

Andin, Josefine [VerfasserIn]
Elwér, Åsa [VerfasserIn]
Mäki-Torkko, Elina [VerfasserIn]

Links:

Volltext

Themen:

Arithmetic
Deafness
Functional magnetic resonance imaging
Journal Article
RRID:SCR_009550
Research Support, Non-U.S. Gov't
Sign language

Anmerkungen:

Date Completed 25.06.2021

Date Revised 25.06.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/jnr.24569

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM304056758