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Stroop Interference (stroop + interference)

Distribution by Scientific Domains
Psychology66%

Selected Abstracts

A neuropsychological dimension for anchoring effects

JOURNAL OF BEHAVIORAL DECISION MAKING, Issue 5 2005
John D. Jasper
Abstract Previous research has shown that strength of handedness predicts differences in sensory illusions, Stroop interference, episodic memory, and beliefs about body image and the origin of species. Recent evidence also suggests handedness differences in the susceptibility to information framing and persuasion. The present paper extends this line of work to decision anchoring effects. In Experiment 1, 131 introductory psychology students responded to 12 real-world knowledge questions after being given random, uninformative high or low anchors. Results indicated that "strong-handers" showed larger anchoring effects than "mixed-handers." In Experiment 2, 89 introductory psychology students responded to 6 real-world knowledge questions in a modified, two-step anchoring task in which participants were given a credible source for the anchored information and asked to give pre- and post-anchor estimates. In contrast to Experiment 1, results revealed that mixed- and strong-handers were affected similarly by anchoring. In Experiment 3, 158 students were asked to estimate the answer to one of two versions of 8! (8,×,7,×,6,×,5,×,4,×,3,×,2,×,1 or 1,×,2,×,3,×,4,×,5,×,6,×,7,×,8),a multiplication problem in which the high and low anchors are inherently informative. Here, mixed-handers showed larger anchoring effects than strong-handers. A theory centered around the notion of hemispheric specialization and the communication between the two halves of the brain as well as arguments about the informativeness of anchors, metacognition, and recent theorizing in the anchoring literature are used to account for these data. Copyright © 2005 John Wiley & Sons, Ltd. [source]

Effects of Drink-Stress Sequence and Gender on Alcohol Stress Response Dampening in High and Low Anxiety Sensitive Drinkers

ALCOHOLISM, Issue 3 2007
Martin Zack
Background: This study tested the appraisal disruption hypothesis of alcohol stress response dampening (SRD) in male and female high or low anxiety sensitive (AS) undergraduates. The hypothesis predicts that alcohol SRD will be greater when drinking occurs before versus after stress exposure. High AS males' predominant social-evaluative concerns further implied that alcohol SRD to a social stressor (i.e., a speech) would be relatively stronger in high AS males than in high AS females. Methods: Male and female (n=90/gender) high and low AS participants (,70th; ,30th percentile on Anxiety Sensitivity Index-Revised) were matched on drinking habits and randomly assigned to 1 of 9 experimental cells. Drink type,alcohol (0.7 g/kg males; 0.63 g/kg females), placebo, soda,was fully crossed with stress condition,drink before stress (DBS), drink after stress (DAS), and no stress control (NSC). Stress was induced by telling participants they would be required to make a self-revealing speech. Stress response dampening was assessed for state anxiety on the Spielberger scale and Stroop interference to threat-related words. Subjective desire for alcohol was also assessed. Results: Relative to placebo, alcohol (peak blood alcohol concentration, 0.064%) reliably reduced state anxiety in high AS but not in low AS participants. Alcohol decreased STAI scores and Stroop interference to social threat words significantly more in the DBS than the DAS condition in high AS males; high AS females displayed the exact opposite pattern of effects. In contrast to other participants, high AS males also reported relatively strong desire scores under alcohol. Conclusions: Overall, the results do not support the appraisal disruption hypothesis as a general mechanism of alcohol SRD in undergraduate drinkers. The findings for high AS males do support the hypothesis, while the opposing profile for high AS females implies that the nature of the stressor (i.e., social challenge) may contribute to gender differences in alcohol SRD in high AS individuals. [source]

Electrophysiological correlates of threat processing in spider phobics

PSYCHOPHYSIOLOGY, Issue 5 2005
Iris-Tatjana Kolassa
Abstract The electrocortical correlates of the processing of feared/fear-relevant and neutral stimuli were investigated in a pictorial emotional Stroop paradigm with spider phobic, social phobic, and nonphobic subjects. Subjects identified either the color of red or blue pictures of spiders, birds, or flowers (emotional Stroop task) or the object itself (identification task) by pressing different buttons. No emotional Stroop interference was found for spider phobic subjects when identifying the color of spiders as opposed to neutral stimuli. However, in the object identification task, spider phobic subjects identified spiders significantly faster than birds or flowers. Parietal P300 and P400 amplitudes were enhanced independent of task in spider phobic but not in nonphobic subjects when viewing pictures of spiders, which is consistent with previous studies showing that highly unpleasant and arousing pictures affect parietal late positive potentials. [source]

Inducing a Stroop Effect

APPLIED COGNITIVE PSYCHOLOGY, Issue 7 2010
Emmanuel M. Pothos
We examine the conditions that lead to Stroop interference for a meaningless linguistic label. Tiffany's cognitive model of drug abuse implies that individuals will respond more slowly to drug-related words compared to neutral words in an emotional Stroop task, because the former have many automatic associations (e.g. positive expectancies). To examine this proposal, we trained participants to associate a meaningless label with either one other word or several other words and examined the induced Stroop interference for these meaningless labels. In two experiments, and contrary to expectations from Tiffany's work, we observed greatest Stroop interference for the meaningless label with just one association. These results are discussed in terms of associative learning theory. Copyright © 2009 John Wiley & Sons, Ltd. [source]

Mindfulness-based stress reduction and attentional control

CLINICAL PSYCHOLOGY AND PSYCHOTHERAPY (AN INTERNATIONAL JOURNAL OF THEORY & PRACTICE), Issue 6 2007
Nicole D. Anderson
This study was designed to test the hypothesis that mindfulness involves sustained attention, attention switching, inhibition of elaborative processing and non-directed attention. Healthy adults were tested before and after random assignment to an 8-week Mindfulness-Based Stress Reduction (MBSR) course (n = 39) or a wait-list control (n = 33). Testing included measures of sustained attention, attention switching, Stroop interference (as a measure of inhibition of elaborative processing), detection of objects in consistent or inconsistent scenes (as a measure of non-directed attention), as well as self-report measures of emotional well-being and mindfulness. Participation in the MBSR course was associated with significantly greater improvements in emotional well-being and mindfulness, but no improvements in attentional control relative to the control group. However, improvements in mindfulness after MBSR were correlated with improvements in object detection. We discuss the implications of these results as they relate to the role of attention in mindfulness.,Copyright © 2007 John Wiley & Sons, Ltd. [source]