The cost of a strategy

Abstract

Experiment 1 demonstrated a new kind of dual-task interference effect. The primary task was a speeded left-right discrimination of stimulus position (R1). The un speeded secondary task consisted of reporting verbally whether the stimuli were the same or different (R2). Stimulus exposure time was either 150 or 2000 msec. Two groups of subjects performed the primary task only, whereas two other groups performed both tasks and were instructed to emit R1 before R2. It was reasoned that the decision would be made to emit R1 before R2, and that this decision would produce a lengthening of R1. The results supported this prediction. Experiment 2 showed that the interference effect also occurred when the subjects were not explicitly instructed to emit R1 before R2, and was not due to either the mere presence of the second task or to response grouping. Experiments 3 and 4 compared two possible models for explaining the interference effect, i.e. the capacity-sharing model and the postponement model. As predicted by the postponement model, task difficulty did not interact, or interacted underadditively, with task overlap (Experiment 3), and the interference effect was not influenced by the amount of processing resources devoted to the primary task (Experiment 4). It was concluded that this new type of interference effect is best explained by the version of the postponement model that locates the bottleneck at the decision stage.     

Testing the Impact of a Computer Guide on Visitor Learning Behaviors at an Interactive Exhibit

ABSTRACT

There is a recognized need to rigorously examine the efficacy of approaches to supporting informal learning. In this study, we used a 2 × 2 factorial experimental design to test the impact of a computer guide on 3 proximal measures of visitor learning at an interactive math exhibit. In total, 128 families were systematically assigned to engage with the exhibit either with or without access to a supplementary computer kiosk. Visitor groups with access to the computer spent longer, on average, at the exhibit and engaged in more mathematical behaviors compared to other groups. However, based on interviews, visitors with access to the computer were less likely to fully articulate the mathematical relations in the exhibit. These results suggest that although computer guides are a promising approach to supporting visitor engagement, they may, unless carefully designed, undermine other learning outcomes.     

An attribution-emotion-action interpretation of the “evil eye” in everyday conflict situations

An attribution-emotion-action model was used to examine individuals’ willingness to seek for another person's face in conflict situations. To induce interpersonal conflict and frustration, participants were engaged in the ultimatum bargaining game (UBG) where they received predetermined offers. A simple UBG consists of two players, a Proposer and a Responder, who must decide how to divide a resource. Our findings confirm our predictions in that during the interpersonal conflict (i.e., betraying the norm of equality in the UBG), participants made more controllable based attributions, felt more frustrated (less sympathetic), and more likely requested to view the Proposer's photograph than when there is no conflict. Stated differently, in conflict situations, the likelihood of seeking another person's face increases when controllable attributions are made and when frustration is felt.     

BeCause of the Effect the role of health messages ordering on behavioral change intention

Journal of Psycholinguistic Research - Health messages are central to the field of public health in influencing behavioral change, and previous research does not offer a univocal answer on the most...     

Are subjective cognitive complaints associated with executive functions and mental health of older adults?

Cognitive Processing - Subjective cognitive complaints are used to detect detrimental age-related variations in cognitive efficiency before cognitive decline occurs in late adulthood. Despite this,...     

Using nostalgia to reduce prejudice toward immigrants

Based on research that points to nostalgia as a means of warding off stigmatization, this study suggests that nostalgia triggered by a past encounter with a close immigrant from the in‐group can improve attitudes toward out‐group immigrants. Focusing on immigration in Greece, 99 university students (M = 23.06, SD = 5.44) participated in the study. Participants who were induced with nostalgia reported higher social connectedness, inclusion of the out‐group in the self, out‐group trust, and positive out‐group attitude compared with participants in the control condition. The aforementioned findings demonstrated that the positive effects of nostalgia about a close in‐group member (in this case, a Greek person), who shares an identity with the out‐group (being an immigrant), can generalize to the out‐group as a whole (immigrants in general). Further implications and future directions on the use of nostalgia as a means of improving attitudes are addressed.     

Parent–child career construction: A narrative study from a gender perspective

Nine families composed of mother and father, one son and one daughter were involved in this study to examine the role played by parents on children's career development from a gender perspective. In particular, this paper addresses the questions of how the parent–child dyad constructs stories about the child's career and the role played in it by the parent, and how same-sex dyads versus opposite-sex shape these stories. The narrative method was used as it lends itself to capturing family members storytelling about children's career. A narrative interview was administered to thirty-six participants with the data being analyzed using the adaptation of a tried-and-tested narrative analysis procedure. The findings show the importance of same-sex dyads in constructing career stories, plotted around themes of father–son educational and occupational transmission and mother–daughter alliance in facilitating girls' self-making. The study shows how storytelling helps family members to accommodate disruptions experienced during career transitions and to motivate choices that make vocational identity more stable. Implications for practice and future research are discussed.     

Emotional modulation of attention affects time perception: Evidence from event-related potentials

Emotional effects on human time perception are generally attributed to arousal speeding up or slowing down the internal clock. The aim of the present study is to investigate the less frequently considered role of attention as an alternative mediator of these effects with the help of event-related potentials (ERPs). Participants produced short intervals (0.9, 1.5, 2.7, and 3.3 s) while viewing high arousal images with pleasant and unpleasant contents in comparison to neutral images. Behavioral results revealed that durations were overproduced for the 0.9 s interval whereas, for 2.7 and 3.3 s intervals, underproduction was observed. The effect of affective valence was present for the shorter durations and decreased as the target intervals became longer. More specifically, the durations for unpleasant images were less overproduced in the 0.9 s intervals, and for the 1.5 s trials, durations for unpleasant images were slightly underproduced, compared to pleasant images, which were overproduced. The analysis of different ERP components suggests possible attention processes related to the timing of affective images in addition to changes in pacemaker speed. Early Posterior Negativity (EPN) was larger for positive than for negative images, indicating valence-specific differences in activation of early attention mechanisms. Within the early P1 and the Late Positive Potential (LPP) components, both pleasant and unpleasant stimuli exhibited equal affective modulation. Contingent Negative Variation (CNV) remained independent of both timing performance and affective modulation. This pattern suggests that both pleasant and unpleasant stimuli enhanced arousal and captured attention, but the latter effect was more pronounced for pleasant stimuli. The valence-specificity of affective attention revealed by ERPs combined with behavioral timing results suggests that attention processes indeed contribute to emotion-induced temporal distortions, especially for longer target intervals.