Partitioning task-switch cost with ERPs: Switching slows lexical access

Dissociation of Cue-Switch Cost and Task-Switch Cost

PsycEXTRA Dataset ◽

10.1037/e527312012-015 ◽

2008 ◽

Author(s):

MyeongHo Sohn ◽

Chris Hydock

Keyword(s):

Switch Cost ◽

Task Switch ◽

And Task

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Self-paced preparation for a task switch eliminates attentional inertia but not the performance switch cost.

Journal of Experimental Psychology Learning Memory and Cognition ◽

10.1037/xlm0000347 ◽

2017 ◽

Vol 43 (6) ◽

pp. 862-873 ◽

Cited By ~ 1

Author(s):

Cai S. Longman ◽

Aureliu Lavric ◽

Stephen Monsell

Keyword(s):

Switch Cost ◽

Task Switch

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Cost of Mental Set Reconfiguration between Digits and their Photisms in Synaesthesia

The Spanish Journal of Psychology ◽

10.5209/rev_sjop.2011.v14.n2.3 ◽

2011 ◽

Vol 14 (2) ◽

pp. 548-555

Author(s):

Emilio G. Milán ◽

María Ángeles Rodríguez Artacho ◽

Sergio Moreno-Ríos ◽

Mª José de Córdoba ◽

Alex Pereda ◽

...

Keyword(s):

Cost Reduction ◽

Time Course ◽

Switch Cost ◽

Task Switch ◽

Control Group ◽

Control Groups ◽

Mental Set ◽

Cost Asymmetry ◽

The Cost ◽

Experimental Group

In this study we present an experiment investigating the reconfiguration process elicited by the task switching paradigm in synaesthesia. We study the time course of the operations involved in the activation of photisms. In the experimental Group, four digit-color synaesthetes alternated between an odd-even task and a color task (to indicate the photism elicited by each digit). In both tasks, the target stimuli were numbers between 1 and 9 written in white. One of the control groups ran the same tasks but this time with colored numbers (Naïve Control Group). The results of these studies showed the expected pattern for the control group in the case of regular shift: a significant task switch cost with an abrupt offset and a cost reduction in long RSI. However for the experimental group, we found switch cost asymmetry in the short RSI and non-significant cost in the long RSI. A second control group performed exactly the same tasks as the experimental group (with white numbers as targets and a second imaginary color task) -Trained Control Group-. We found no cost for this second control group. This means that the cost of mental set reconfiguration between numbers (inducers) and their photisms (concurrent sensations) occurs, that there is a specific cost asymmetry (from photisms to inducers) and that this cost cannot be explained by associative learning. The results are discussed in terms of exogenous and endogenous components of mental set reconfiguration.

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Shifting Attention Between Visual Dimensions as a Source of Switch Costs

Psychological Science ◽

10.1177/0956797616686855 ◽

2017 ◽

Vol 28 (4) ◽

pp. 470-481 ◽

Cited By ~ 5

Author(s):

Heike Elchlepp ◽

Maisy Best ◽

Aureliu Lavric ◽

Stephen Monsell

Keyword(s):

Switch Cost ◽

Task Switch ◽

Relevant Stimulus ◽

Color Classification ◽

Perceptual Dimension ◽

Response Mapping ◽

Stimulus Response ◽

Switch Costs ◽

Residual Switch Cost ◽

Letter Task

Task-switching experiments have documented a puzzling phenomenon: Advance warning of the switch reduces but does not eliminate the switch cost. Theoretical accounts have posited that the residual switch cost arises when one selects the relevant stimulus–response mapping, leaving earlier perceptual processes unaffected. We put this assumption to the test by seeking electrophysiological markers of encoding a perceptual dimension. Participants categorized a colored letter as a vowel or consonant or its color as “warm” or “cold.” Orthogonally to the color manipulation, some colors were eight times more frequent than others, and the letters were in upper- or lowercase. Color frequency modulated the electroencephalogram amplitude at around 150 ms when participants repeated the color-classification task. When participants switched from the letter task to the color task, this effect was significantly delayed. Thus, even when prepared for, a task switch delays or prolongs encoding of the relevant perceptual dimension.

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