| Autor: |
Lyphout-Spitz M; Laboratoire de Recherches Intégratives en Neurosciences et Psychologie Cognitive (LINC, UR 481), MSHE Ledoux, Université de Franche-Comté., Maquestiaux F; Laboratoire de Recherches Intégratives en Neurosciences et Psychologie Cognitive (LINC, UR 481), MSHE Ledoux, Université de Franche-Comté., Ruthruff E; Laboratoire de Recherches Intégratives en Neurosciences et Psychologie Cognitive (LINC, UR 481), MSHE Ledoux, Université de Franche-Comté., Chaloyard S; Laboratoire de Recherches Intégratives en Neurosciences et Psychologie Cognitive (LINC, UR 481), MSHE Ledoux, Université de Franche-Comté. |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of experimental psychology. Human perception and performance [J Exp Psychol Hum Percept Perform] 2024 Jan; Vol. 50 (1), pp. 74-98. |
| DOI: |
10.1037/xhp0001169 |
| Abstrakt: |
Can people perform two novel tasks in parallel? Available evidence and prevailing theories overwhelmingly indicate that the answer is no, due to stubborn capacity limitations in central stages (e.g., a central bottleneck). Here we propose a new hypothesis, which suggests otherwise: people are capable of fully parallel central processing (i.e., bypassing the central bottleneck), yet often fail to do so, mainly due to preparation neglect. This preparation-neglect hypothesis was evaluated in four dual-task experiments pairing novel tasks (Task 1 and Task 2) using arbitrary stimulus-response mappings. Experiment 1, using a classic psychological refractory period (PRP) procedure, replicated the finding of dozens of previous PRP studies: none of the participants bypassed the bottleneck, instead exhibiting large dual-task interference on Task 2 (445 ms). In Experiment 2, the same dual-task PRP trials were randomly intermixed with single-task trials on Task 2, to boost preparation on that task. Here, nearly half the sample of participants bypassed the central bottleneck, exhibiting small dual-task interference on Task 2 (48 ms). Two additional experiments showed that initial practice does not by itself enable bottleneck bypassing, but boosting preparation of Task 2 (via intermixing single-task trials of Task 2) does. We conclude that, when properly prepared, people are capable of far more dual-task automaticity than was previously believed. (PsycInfo Database Record (c) 2024 APA, all rights reserved). |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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