Letter to the editor of Heliyon re: Grassmann, G. „New considerations on the validity of the Wiener-Granger causality test” [Heliyon 6 (2020) e05208]

Authors: Martina Chvosteková, A. Krakovská
Publication year: 2021
Publication type: Článek v odborném periodiku
Periodical: Heliyon
Bibliographic citation: CHVOSTEKOVÁ, Martina, KRAKOVSKÁ, A. Letter to the editor of Heliyon re: Grassmann, G. „New considerations on the validity of the Wiener-Granger causality test” [Heliyon 6 (2020) e05208]. Heliyon. 2021, 7(9), e07948. ISSN 2405-8440. E-ISSN 2405-8440
Dostupné z: doi:10.1016/j.heliyon.2021.e07948.
DOI: 10.1016/j.heliyon.2021.e07948
ID: 548093

Abstract

Dear Editor, a recently published article questions the Wiener-Granger causality test, more commonly referred to as the Granger causality test. Although the abstract of the paper states that the results were obtained by mathematical tools such as the Fourier transform and differential calculus, the presented serious claim that „...not even the most basic requirement underlying any possible definition of causality is met by the Granger causality test...” is in fact based on a questionable numerical testing of two filtered neural signals (A and B). We will show that the validity of the presented considerations is unfounded for several reasons.