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Separating stages of arithmetic verification: an ERP study with a novel paradigm

Separating stages of arithmetic verification: an ERP study with a novel paradigm
Separating stages of arithmetic verification: an ERP study with a novel paradigm
In studies of arithmetic verification, participants typically encounter two operands and they carry out an operation on these (e.g. adding them). Operands are followed by a proposed answer and participants decide whether this answer is correct or incorrect. However, interpretation of results is difficult because multiple parallel, temporally overlapping numerical and non-numerical processes of the human brain may contribute to task execution. In order to overcome this problem here we used a novel paradigm specifically designed to tease apart the overlapping cognitive processes active during arithmetic verification. Specifically, we aimed to separate effects related to detection of arithmetic correctness, detection of the violation of strategic expectations, detection of physical stimulus properties mismatch and numerical magnitude comparison (numerical distance effects). Arithmetic correctness, physical stimulus properties and magnitude information were not task-relevant properties of the stimuli. We distinguished between a series of temporally highly overlapping cognitive processes which in turn elicited overlapping ERP effects with distinct scalp topographies. We suggest that arithmetic verification relies on two major temporal phases which include parallel running processes. Our paradigm offers a new method for investigating specific arithmetic verification processes in detail
0028-3932
322-329
Avanchini, Chiara
5d576d26-063f-42e8-88e6-2eec1cf018a4
Soltesz, Fruzsina
cbc12e4b-9d6f-4c24-8203-47ae2bd8f470
Szucs, Denes
ba252bc9-ec9f-49dc-9091-bc0bf9ea38de
Avanchini, Chiara
5d576d26-063f-42e8-88e6-2eec1cf018a4
Soltesz, Fruzsina
cbc12e4b-9d6f-4c24-8203-47ae2bd8f470
Szucs, Denes
ba252bc9-ec9f-49dc-9091-bc0bf9ea38de

Avanchini, Chiara, Soltesz, Fruzsina and Szucs, Denes (2015) Separating stages of arithmetic verification: an ERP study with a novel paradigm. Neuropsychologia, 75, 322-329. (doi:10.1016/j.neuropsychologia.2015.06.016).

Record type: Article

Abstract

In studies of arithmetic verification, participants typically encounter two operands and they carry out an operation on these (e.g. adding them). Operands are followed by a proposed answer and participants decide whether this answer is correct or incorrect. However, interpretation of results is difficult because multiple parallel, temporally overlapping numerical and non-numerical processes of the human brain may contribute to task execution. In order to overcome this problem here we used a novel paradigm specifically designed to tease apart the overlapping cognitive processes active during arithmetic verification. Specifically, we aimed to separate effects related to detection of arithmetic correctness, detection of the violation of strategic expectations, detection of physical stimulus properties mismatch and numerical magnitude comparison (numerical distance effects). Arithmetic correctness, physical stimulus properties and magnitude information were not task-relevant properties of the stimuli. We distinguished between a series of temporally highly overlapping cognitive processes which in turn elicited overlapping ERP effects with distinct scalp topographies. We suggest that arithmetic verification relies on two major temporal phases which include parallel running processes. Our paradigm offers a new method for investigating specific arithmetic verification processes in detail

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e-pub ahead of print date: 25 June 2015
Published date: August 2015
Organisations: Psychology

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Local EPrints ID: 378390
URI: https://eprints.soton.ac.uk/id/eprint/378390
ISSN: 0028-3932
PURE UUID: 97f21ea5-f278-44b8-855e-5f36978459f1

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Date deposited: 13 Jul 2015 10:31
Last modified: 15 Jul 2019 21:14

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Contributors

Author: Chiara Avanchini
Author: Fruzsina Soltesz
Author: Denes Szucs

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