Two types of between-task conflict trigger respective processing adjustments within one dual-task

In dual tasking, two different kinds of between-task conflict occur. Because in both cases, Task 2 characteristics affect Task 1 performance, they are commonly referred to as backward crosstalk effects (BCE): One with a conflict at the response selection stage when Task 1 and Task 2 have dimensional...

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Autores principales:	Devu Mahesan, Markus Janczyk, Rico Fischer
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Multitasking Dual task Backward crosstalk Sequential modulation Cognitive control Psychology BF1-990
Acceso en línea:	https://doaj.org/article/da34dfa1b43c4a4691c245d9acd05bbb
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spelling	oai:doaj.org-article:da34dfa1b43c4a4691c245d9acd05bbb2021-11-24T04:21:05ZTwo types of between-task conflict trigger respective processing adjustments within one dual-task0001-691810.1016/j.actpsy.2021.103450https://doaj.org/article/da34dfa1b43c4a4691c245d9acd05bbb2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0001691821002006https://doaj.org/toc/0001-6918In dual tasking, two different kinds of between-task conflict occur. Because in both cases, Task 2 characteristics affect Task 1 performance, they are commonly referred to as backward crosstalk effects (BCE): One with a conflict at the response selection stage when Task 1 and Task 2 have dimensional overlap (the compatibility-based BCE) and one with a conflict at the motor execution stage when response inhibition resulting from a Task 2 no-go-trial interferes with simultaneous response execution in Task 1 (the no-go BCE). Recent research suggests that these BCEs differ not only in their underlying cognitive processes, but also in how cognitive control is regulated. Here, we investigated whether both can be produced in a single dual-task set up and whether they trigger their respective processing adjustments (i.e., a sequential modulation). In three experiments, participants categorized numbers as smaller or larger than 5 in Task 1. In Experiments 1 and 2, numbers were responded to irrespective of numerical size (go-response) as Task 2. Further, dimensional overlap was provided by (non)corresponding size information in both stimuli, which was strengthened in Experiment 2 by presenting S1 and S2 in the same/different color in compatible/incompatible trials, respectively. In Experiment 3, participants were required to perform a number-size categorization also in Task 2, establishing strong dimensional overlap by activating the same or different response categories in both tasks. In all three experiments, the number 5 served as the no-go stimulus in Task 2 to induce a no-go BCE on Task 1. By and large, our results show that both types of between-task conflicts not only occur within the same type of BCE, but they also trigger their respective sequential modulation.Devu MahesanMarkus JanczykRico FischerElsevierarticleMultitaskingDual taskBackward crosstalkSequential modulationCognitive controlPsychologyBF1-990ENActa Psychologica, Vol 221, Iss , Pp 103450- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Multitasking Dual task Backward crosstalk Sequential modulation Cognitive control Psychology BF1-990
spellingShingle	Multitasking Dual task Backward crosstalk Sequential modulation Cognitive control Psychology BF1-990 Devu Mahesan Markus Janczyk Rico Fischer Two types of between-task conflict trigger respective processing adjustments within one dual-task
description	In dual tasking, two different kinds of between-task conflict occur. Because in both cases, Task 2 characteristics affect Task 1 performance, they are commonly referred to as backward crosstalk effects (BCE): One with a conflict at the response selection stage when Task 1 and Task 2 have dimensional overlap (the compatibility-based BCE) and one with a conflict at the motor execution stage when response inhibition resulting from a Task 2 no-go-trial interferes with simultaneous response execution in Task 1 (the no-go BCE). Recent research suggests that these BCEs differ not only in their underlying cognitive processes, but also in how cognitive control is regulated. Here, we investigated whether both can be produced in a single dual-task set up and whether they trigger their respective processing adjustments (i.e., a sequential modulation). In three experiments, participants categorized numbers as smaller or larger than 5 in Task 1. In Experiments 1 and 2, numbers were responded to irrespective of numerical size (go-response) as Task 2. Further, dimensional overlap was provided by (non)corresponding size information in both stimuli, which was strengthened in Experiment 2 by presenting S1 and S2 in the same/different color in compatible/incompatible trials, respectively. In Experiment 3, participants were required to perform a number-size categorization also in Task 2, establishing strong dimensional overlap by activating the same or different response categories in both tasks. In all three experiments, the number 5 served as the no-go stimulus in Task 2 to induce a no-go BCE on Task 1. By and large, our results show that both types of between-task conflicts not only occur within the same type of BCE, but they also trigger their respective sequential modulation.
format	article
author	Devu Mahesan Markus Janczyk Rico Fischer
author_facet	Devu Mahesan Markus Janczyk Rico Fischer
author_sort	Devu Mahesan
title	Two types of between-task conflict trigger respective processing adjustments within one dual-task
title_short	Two types of between-task conflict trigger respective processing adjustments within one dual-task
title_full	Two types of between-task conflict trigger respective processing adjustments within one dual-task
title_fullStr	Two types of between-task conflict trigger respective processing adjustments within one dual-task
title_full_unstemmed	Two types of between-task conflict trigger respective processing adjustments within one dual-task
title_sort	two types of between-task conflict trigger respective processing adjustments within one dual-task
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/da34dfa1b43c4a4691c245d9acd05bbb
work_keys_str_mv	AT devumahesan twotypesofbetweentaskconflicttriggerrespectiveprocessingadjustmentswithinonedualtask AT markusjanczyk twotypesofbetweentaskconflicttriggerrespectiveprocessingadjustmentswithinonedualtask AT ricofischer twotypesofbetweentaskconflicttriggerrespectiveprocessingadjustmentswithinonedualtask
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Two types of between-task conflict trigger respective processing adjustments within one dual-task

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