“…Expanding on the visuospatial tasks presented by Wollesen et al (2019) , a few more modality-related classifications can be found. The method of tapping or humming melodies ( Park and Brünken 2015 ; Sun and Shea, 2016 ), mathematical tasks ( Lee et al, 2015 ; Tang et al, 2015 ), and visual tasks like reading text or symbols ( Scerbo et al, 2017 ; Wirzberger et al, 2018 ) showcase that the modality between primary and secondary task can differ between auditory/vocally, visually, and motoric tasks. Furthermore, as mentioned by Brown (1978) and Wollesen et al (2019) , there can be differences in the frequency of the dual task, from event- or interval-based tasks that appear, for example, every 3, 5, or 7 s to continuous tasks that constantly request the participants’ attention.…”