Disentangling stimulus and response compatibility as potential sources of backward crosstalk
- PDF / 659,898 Bytes
- 17 Pages / 595.224 x 790.955 pts Page_size
- 20 Downloads / 149 Views
Disentangling stimulus and response compatibility as potential sources of backward crosstalk Tobias Rieger1 · Jeff Miller2 Published online: 11 June 2020 © The Author(s) 2020
Abstract In two experiments (N=60 each), we investigated the locus of backward crosstalk effects in dual tasking. Specifically, we embedded the typical flanker task within a dual-task paradigm by assigning stimulus-response (S-R) rules to the flankers. In Experiment 1, participants were instructed to first respond to the center letter and only respond to the flanker if the center was a no-go stimulus (i.e., prioritized processing paradigm). Mapping condition was varied between-subjects to be either matched (i.e., same S-R rule for flankers as for center letters), reversed (i.e., opposite S-R rule for flankers), or neutral (i.e., different letters for flankers with separate S-R rules). The results indicated that the backward crosstalk effect was mainly driven by a stimulus-based compatibility, as indicated by a significant S2 −R1 compatibility effect in the matched and reversed conditions, with little change in this effect between the matched and reversed conditions. Experiment 2 replicated and extended these findings to a psychological refractory period paradigm. The present findings suggest that in the matched and reversed conditions, there was only one S-R rule active at a time. Keywords Backward crosstalk effect · Dual-tasking · Stimulus compatibility · Response compatibility · Flanker task A plethora of everyday life situations involves having more than one task at hand (i.e., multitasking; Koch, Poljac, M¨uller, & Kiesel, 2018). One special case of multitasking situations is having to work on two tasks simultaneously (i.e., dual tasking). In a laboratory setting, participants in dual-task situations are often required to respond to two tasks in rapid succession and the general finding is that performance for both tasks suffers compared to a single-task situation (Pashler, 1984; 1994; Tombu & Jolicoeur, 2004), even when only one overt response per trial is required and the other task requires no response (Miller & Durst, 2014; 2015). Another well-documented finding is that when the second task (T2 ) characteristics (e.g., stimuli or responses) are incompatible with the characteristics of the Tobias Rieger
[email protected] Jeff Miller
[email protected] 1
Department of Psychology and Ergonomics, Chair of Work, Engineering, and Organizational Psychology, Technische Universit¨at Berlin, Marchstraße 12, 10587, Berlin, Germany
2
Department of Psychology, University of Otago, PO Box 56, Dunedin 90654, New Zealand
first task (T1 ), this typically leads to interference, and is often termed a backward crosstalk effect. In dual-tasking studies, it has often been shown that characteristics of T2 can influence first task performance (e.g., Caessens, Hommel, Reynvoet, & Vandergoten, 2004; Ellenbogen & Meiran, 2008; Hommel, 1998; Huestegge, Pieczykolan, & Janczyk, 2018; Janczyk, Renas, & Durst, 2018; Ko & Miller, 2014; Lien & Proct
Data Loading...
