EXPRESS: The Dominance of Item Learning in the Location-Specific Proportion Congruence Paradigm

2021 ◽  
pp. 174702182110551
Author(s):  
Julie Bugg ◽  
Jihyun Suh ◽  
Jackson Colvett

Prior research has shown that various cues are exploited to reactively adjust attention and such adjustments depend on learning associations between cues and proportion congruence. This raises the intriguing question of what will be learned when more than one cue is available, a question that has implications for understanding which cue(s) will dominate in guiding reactive adjustments. Using a picture-word Stroop task, Bugg, Suh, Colvett, and Lehmann (2020) provided initial evidence that item learning dominated over location learning in a location-specific proportion congruence (LSPC) paradigm, a pattern that may explain the difficulty researchers have faced in replicating and reproducing the LSPC effect. One goal was to reproduce this pattern using a non-overlapping two-item sets design that more closely matched prior studies, and another goal was to examine generalizability of the pattern to two other tasks. Using a prime-probe, color-word Stroop task (Experiment 1) and a flanker task (Experiment 2), we again found clear dominance of item learning. In Experiment 3, we attempted to disrupt item learning and promote location learning by using a counting procedure that directed participants’ attention to location. Once again, we found the same pattern of item dominance. Additionally, in none of the experiments did we find evidence for conjunctive (location-item) learning. Collectively, the findings suggest item learning is neither design- or task-specific; rather, it is robust, reliable, and not easily disrupted. Discussion centers on factors dictating dominance of item- over location-based adjustments and implications for the broader literature on LSPC effects.

2013 ◽  
Vol 27 (4) ◽  
pp. 149-164 ◽  
Author(s):  
Montserrat Zurrón ◽  
Marta Ramos-Goicoa ◽  
Fernando Díaz

With the aim of establishing the temporal locus of the semantic conflict in color-word Stroop and emotional Stroop phenomena, we analyzed the Event-Related Potentials (ERPs) elicited by nonwords, incongruent and congruent color words, colored words with positive and negative emotional valence, and colored words with neutral valence. The incongruent, positive, negative, and neutral stimuli produced interference in the behavioral response to the color of the stimuli. The P150/N170 amplitude was sensitive to the semantic equivalence of both dimensions of the congruent color words. The P3b amplitude was smaller in response to incongruent color words and to positive, negative, and neutral colored words than in response to the congruent color words and colored nonwords. There were no differences in the ERPs induced in response to colored words with positive, negative, and neutral valence. Therefore, the P3b amplitude was sensitive to interference from the semantic content of the incongruent, positive, negative, and neutral words in the color-response task, independently of the emotional content of the colored words. In addition, the P3b amplitude was smaller in response to colored words with positive, negative, and neutral valence than in response to the incongruent color words. Overall, these data indicate that the temporal locus of the semantic conflict generated by the incongruent color words (in the color-word Stroop task) and by colored words with positive, negative, and neutral valence (in the emotional Stroop task) appears to occur in the range 300–450 ms post-stimulus.


2021 ◽  
pp. 1-14
Author(s):  
Khoi D. Vo ◽  
Audrey Siqi-Liu ◽  
Alondra Chaire ◽  
Sophia Li ◽  
Elise Demeter ◽  
...  

Abstract Attention and working memory (WM) have classically been considered as two separate cognitive functions, but more recent theories have conceptualized them as operating on shared representations and being distinguished primarily by whether attention is directed internally (WM) or externally (attention, traditionally defined). Supporting this idea, a recent behavioral study documented a “WM Stroop effect,” showing that maintaining a color word in WM impacts perceptual color-naming performance to the same degree as presenting the color word externally in the classic Stroop task. Here, we employed ERPs to examine the neural processes underlying this WM Stroop task compared to those in the classic Stroop and in a WM-control task. Based on the assumption that holding a color word in WM would (pre-)activate the same color representation as by externally presenting that color word, we hypothesized that the neural cascade of conflict–control processes would occur more rapidly in the WM Stroop than in the classic Stroop task. Our behavioral results replicated equivalent interference behavioral effects for the WM and classic Stroop tasks. Importantly, however, the ERP signatures of conflict detection and resolution displayed substantially shorter latencies in the WM Stroop task. Moreover, delay-period conflict in the WM Stroop task, but not in the WM control task, impacted the ERP and performance measures for the WM probe stimuli. Together, these findings provide new insights into how the brain processes conflict between internal representations and external stimuli, and they support the view of shared representations between internally held WM content and attentional processing of external stimuli.


1990 ◽  
Vol 71 (1) ◽  
pp. 19-31 ◽  
Author(s):  
I. Alex Rubino ◽  
Silvia Grasso ◽  
Bianca Pezzarossa

Microgenetic patterns of adaptation on the Stroop task were assessed by means of the Serial Color-Word Test given 21 patients with bronchial asthma and 20 with duodenal peptic ulcer, who were compared with 41 normal controls matched for sex, age, and education. Two measures were calculated on each of the five trials of the test, one of linear change and one of nonlinear change in reading times. As predicted, patients presented more frequently patterns characterized by high nonlinear change and less frequently stabilized patterns (low linear and nonlinear change of reading speed). Linear and nonlinear change were then calculated on the five linear change scores and the five nonlinear change scores; again patients presented more frequently patterns characterized by high nonlinear change on both the linear change scores and nonlinear change scores and less frequently stabilized patterns. These findings indicate strong similarities between the adaptation patterns of patients with ulcer and asthma and the microgenetic patterns previously known to characterize neurotic and psychotic patients. Furthermore, scores on the Serial Color-Word Test also differentiated between ulcer and asthma groups.


2019 ◽  
Vol 123 (4) ◽  
pp. 1207-1225
Author(s):  
Gary D. Fisk ◽  
Steven J. Haase

Two forms of the Stroop task have produced contradictory findings regarding unconscious perceptual processing. Emotional Stroop task studies with prime words presented at an objective threshold (i.e., subliminal) produce Stroop-like effects, but comparable studies conducted with classic Stroop stimuli do not produce Stroop effects. We tested the possibility that differences in the display appearance might explain this discrepancy. Color word prime stimuli from the traditional Stroop task were used with display characteristics based upon the emotional Stroop studies. There was a Stroop effect for the relatively long prime stimulus durations (59, 87, or 108 milliseconds) but not for the brief durations (18, 24, or 38 milliseconds). Accordingly, the discrepancy in research findings cannot be attributed to simple differences in display methodology. The failure to find strong evidence of unconscious perceptual processing is consistent with the negative findings from some emotional Stroop studies that use subliminal stimulus presentations.


2002 ◽  
Vol 17 (1) ◽  
pp. 61-71 ◽  
Author(s):  
Matthias L. Schroeter ◽  
Stefan Zysset ◽  
Thomas Kupka ◽  
Frithjof Kruggel ◽  
D. Yves von Cramon

2020 ◽  
Vol 73 (9) ◽  
pp. 1444-1459 ◽  
Author(s):  
Julie M Bugg ◽  
Corentin Gonthier

Current theories posit multiple levels of cognitive control for resolving conflict, including list-level control: the global or proactive biasing of attention across a list of trials. However, to date, evidence for pure list-level control has largely been confined to the Stroop task. Our goals were twofold: (a) test the generality of theoretical accounts by seeking evidence for list-level control in the letter flanker task, using an established method involving diagnostic items, and investigating the conditions under which list-level control may and may not be observed and (b) develop and test a potential solution to the challenge of isolating list-level control in tasks with a relatively limited set of stimuli and responses such as arrow flanker. Our key findings were that list-level control was observed for the first time in a letter flanker task on diagnostic items (Experiment 1), and it was not observed when the design was altered to encourage learning and use of simple stimulus–response associations (Experiment 2). These findings support the generalisability of current theoretical accounts positing dual-mechanisms or multiple levels of control, and the associations as antagonists to control account positing that list-level control may be a last resort, to conflict tasks besides Stroop. List-level control was also observed in the arrow flanker task using a modified design (Experiment 3), which could be extended to other conflict tasks with limited sets of stimuli (four or fewer), although this solution is not entirely free of confounds.


Author(s):  
Michael Reynolds ◽  
Donna Kwan ◽  
Daniel Smilek

Eight experiments are reported that examine the contextual factors that influence the magnitude of color-word interference in the Stroop task. In Part 1 of the paper (Experiments 1–4) we varied letter-letter grouping using Gestalt principles of proximity and similarity. In Part 2 of the paper (Experiments 5–8) we varied word-color grouping using the Gestalt principles of similarity and common fate. The magnitude of the Stroop effect was strongly influenced by changes in both letter-letter grouping in the color-word and word-color grouping. Overall, the results suggest two ways in which perceptual organization influences the magnitude of Stroop color-word interference and more generally, that there are systematic principles that govern the impact of visually presented words across a variety of laboratory contexts and the real world.


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