The Influence of Attitude on Learning

Automaticity theory and the effect of coloring a single element were tested with all or only 1 element colored in Stroop tasks. The 312 participants in 5 experiments indicated stimulus presentation color by key press. Experiments 1 and 2 replicated those of D. Besner, J. A. Stoltz, and C. Boutilier (1997) with some changes, and revealed similar results: less Stroop interference with only 1 letter colored. Besner et al. (1997) interpreted the results as indicating that coloring a single letter eliminates automatic reading processes. The cause of that reduction in Stroop interference was investigated in Experiments 3, 4, and 5 using color words, bars, and rectangles. The effect of coloring 1 element was to increase color-naming time by the same amount for congruent and neutral, nonverbal stimuli, but not for incongruent stimuli. The results are interpreted in terms of automaticity theory, and a continuous flow approach to the Stroop effect is presented.     

Test-Retest Reliability of the Emotional Stroop Task: Examining the Paradox of Measurement Change

The Emotional Stroop (ES) task (I. H. Gotlib & C. D. McCann, 1984) has been proposed as an experimental measure to assess the processing of emotion or the bias in attention of emotion-laden information. However, study results have not been consistent. To further examine its reliability for empirical research, the authors of this study administered the ES task to 33 participants on 2 separate occasions separated by 1 week. Results indicated that retest reliabilities for reaction times (RTs) derived from the 3 separate emotion conditions (manic, neutral, and depressive) across the 1 week interval were very high. However, consistent with previous research, the reliabilities were very low for the interference indices (manic and depressive). These low reliabilities reflect the very high intercorrelation between the RTs derived from the 3 conditions. The authors concluded that a better indicator of the reliability for this task is the individual RTs from each emotion condition.     

Anticipación semántica e interferencia de tipo Stroop en tareas de denominación de palabras

Resumen

Una relación semántica entre los componentes de estímulo relevantes e irrelevantes facilita la ejecución en tareas de anticipación pero parece inhibir la ejecución en tareas de tipo Stroop. Se estudiaron las causas de esta discrepancia. En una serie de tareas de denominación de palabras, se analizaba el efecto del número de dominios semánticos (que covariaba con el número de alternativas de respuesta) presentando a un grupo de estudiantes un conjunto idéntico de estímulos en forma bloqueada o mixta. El experimento 1 muestra que la presentación bloqueada produce un efecto de interferencia de tipo Stroop, mientras la presentación mixta produce facilitación semántica. Los experimentos 2 y 3 muestran que la variante palabra-palabra de la tarea de Stroop y la variante denominación de palabra de la tarea de anticipación semántica pertenecen a una misma familia de tareas. Ambas tareas muestran: a) un efecto de facilitación cuando el anticipador se relaciona con el objetivo y b) un efecto de interferencia cuando el anticipador es miembro del conjunto de respuesta. En la tarea de Stroop, la competición de respuestas aumenta el efecto de facilitación; en la tarea de anticipación, el efecto de facilitación semántica aumenta el efecto de competición de respuestas.     

Efectos de anticipación y de stroop en tareas de denominación y categorización de dibujos y de palabras

Resumen

Se llevó a cabo un experimento con vistas a estudiar el procesamiento de dibujos y de palabras en el marco de los paradigmas de Stroop y de anticipación. Las variables de tarea, modalidad y de relación semántica fueron equivalentes en ambos paradigmas. Según el intervalo temporal entre los estímulos se establecieron tres condiciones experimentales: condición previa—anticipación—, condición simultánea—Stroop—, y condición previa y simultánea—Stroop y anticipación—. Los resultados ponen de manifiesto la existencia de efectos de facilitación e interferencia de signo opuesto que se atribuyen a la interacción entre la secuencia temporal entre los estímulos componentes, las demandas de las respectivas tareas y la modalidad en la memoria activa. Los resultados se discuten en relación con el diferente procesamiento a que se someten los dibujos y las palabras y la naturaleza del formato de representación.     

When emotion does and does not impair performance: A Garner theory of the emotional Stroop effect

It takes people longer to name the ink colour of emotion or threat words than that of neutral words, the emotional Stroop effect (ESE). In three experiments with normal and patient populations, we show that the ESE is a special case of a generic attention model and effect entailed in Garner's speeded classification paradigm. Guided by the Garner model we demonstrate that task-irrelevant dimensions that differ in salience can produce the ESE and mimic it with neutral stimuli. When each word appears in a constant colour, as mandated in the correlation condition of the Garner design, the ESE is eliminated. This important result is consistent with the attention account of the ESE. We conclude that when emotion stimuli appear in a random fashion they interfere with task performance. However, when emotion stimuli are correlated with features of the ongoing task they help task performance not least due to their extreme salience.     

Interference Effects in a Numerical Stroop Paradigm in 9- to 12-year-old Children with ADHD-C

Attention deficit hyperactivity disorder (ADHD) is characterized by deficient self-regulation, poor attentional control, and poor response inhibition. To date, however, the extent to which these deficits affect basic interference control remains a matter of controversy. Secondly, ADHD has been reported to be associated with arithmetic deficits. It remains unclear whether such deficits are a secondary consequence of the above-mentioned characteristics of ADHD or whether basic numerical magnitude representations are also affected. In the present study we attempted to investigate these issues using a basic numerical interference paradigm.

Nine- to twelve-year-old children with ADHD-C (attention-deficit hyperactivity-disorder combined type) and control children without ADHD (each n = 16) were presented with two digits of possibly different physical sizes (e.g., 3 7). This numerical Stroop task requires subjects to make a magnitude classification concerning either the physical or the numerical stimulus dimension. The irrelevant dimension can be congruent (same response), incongruent (different response), or neutral (no response association).

Children with ADHD-C performed worse than control children in most analyses. The most important finding was a significant interaction of congruity effects with group in the numerical comparison task. Children with ADHD-C tended to show larger congruity and interference effects than controls, and these were not attributable to a speed-accuracy trade-off.

The results might reflect differential processing speeds, or a different degree of automatic activation of physical and numerical magnitudes in children with and without ADHD-C. Alternative explanations, such as insufficient inhibition of selective (domain-specific) attention are also discussed.     

Interference suppression vs. response inhibition: An explanation for the absence of a bilingual advantage in preschoolers’ Stroop task performance

The well-documented advantage that bilingual speakers demonstrate across the lifespan on measures of controlled attention is not observed in preschoolers’ performance on Stroop task variations. We examined the role of task demands in explaining this discrepancy. Whereas the Color/Word Stroop used with adult participants requires interference suppression, the Stroop task typically used with preschoolers requires only response inhibition. We developed an age-appropriate conflict task that measures interference suppression. Fifty-one preschool children (26 bilinguals) completed this new Bivalent Shape Task and the Day/Night task used in previous research. Bilingual in comparison to monolingual children performed better on incongruent trials of the Bivalent Shape Task, but did not differ on other measures. The results indicate that the discrepancy between preschoolers and older individuals in performance on Stroop task adaptations results from characteristics of the task rather than developmental differences. Further, the findings provide additional support for the importance of interference suppression as a mechanism underlying the bilingual advantage.     

Individual Therapy via the Phenomenon of Hope for Treating Chronic and Complex PTSD

Evidence-based treatment (EBT) supports different types of cognitive-behavioral therapy (CBT) for treating post-traumatic stress disorder (PTSD). Yet, a growing body of evidence shows a high therapy dropout rate and non-response rate among PTSD patients, especially patients with complex PTSD. A different, short-term therapeutic approach is therefore needed which combines CBT and psychodynamic therapy (PDT) because it is better for patients with chronic and/or complex PTSD to work with clarified stages and an end of treatment in mind. The patient's mental structure is conceptualized as a continuum, and functional problems are regarded as stemming from cognitive structures and unresolved developmental conflict. The five phases of the phenomenon of hope model proposed in an earlier article—a connection phase; an agency and pathway phase (developing a goal-oriented decision-making pattern and learning to plan toward goal achievement); a reconstruction phase; a phase of processing the conflict characteristic of PTSD by utilizing the natural power of hope; and a summary and separation phase—advance a short-term therapy that combines CBT and PDT techniques. This integrated therapy is based on notes that were kept relating to the case study of a chronic PTSD patient.     

Affective Priming of Alcohol Schema in Coping and Enhancement Motivated Drinkers

This study investigated whether Coping Motivated and Enhancement Motivated drinkers differ in their degree of semantic activation of alcohol concepts on a primed Stroop colour-naming task following exposure to negative and positive affect primes, respectively. Participants were 48 undergraduates (not necessarily problem drinkers) who had elevated scores on the Coping Motivated or Enhancement Motivated subscale of the Drinking Motives Questionnaire - Revised. The Stroop task involved negative, positive and neutral primes that preceded alcohol and no-alcohol target words. As hypothesized, Coping Motivated drinkers showed semantic activation of alcohol concepts following exposure to negative but not neutral primes. Also as hypothesized, Enhancement Motivated drinkers showed semantic activation of alcohol concepts following exposure to positive but not negative primes. Unexpectedly, semantic activation of alcohol concepts was also observed among Coping Motivated drinkers following positive primes and among Enhancement Motivated drinkers following neutral primes. Theoretical implications are discussed, as are implications for improving cognitive behavioral interventions for problem drinkers.     

Flexibility over automaticity: Separable representations for colours and words

This study demonstrates that associations between colour words and the colours they denote are not mandatory. Experiments 1–3 used a go/no-go task in which participants responded to one print colour and one word and withheld response from another print colour and another word. In Experiment 1, the content of the words denoted noncolour entities. In Experiment 2 the two words denoted two colours that were different from the target print colours. In Experiment 3, the words denoted the same colours as the target print colours but each response set included incompatible print colour and word (e.g., one response to the print colour blue and the word “green” and another response to the print colour green and the word “blue”). Participants performed equally well in all the experiments. Experiment 4a used Arabic digits and words denoting numbers, two formats that are known to have shared representations. Here, participants had difficulties separating their responses to the digits and words. These results suggest that representations of words are distinct from the content that they represent, supporting the existence of distinct verbal and colour modules.