Task switches under Go/NoGo conditions and the decomposition of switch costs

Alternating switches between two simple S-R tasks are combined with Go/NoGo tasks. Non-switches after Go trials are assumed to selectively profit from stimulus driven repetition benefits, whereas switches after NoGo trials are assumed to be selectively delayed by stimulus driven negative priming. Intentionally driven reconfiguration costs are assessed by RT differences between switches after Go trials (no negative priming) and non-switches after NoGo trials (no repetition benefits). Experiment 1 indicates that with short preparation time repetition benefits, negative priming costs, and intentional components contribute approximately additively to switch costs. Experiment 2 confirms that the delay of switches after NoGo trials is indeed due to negative priming. Experiments 3 and 4 show that repetition benefits and intentional components of switch costs are properly assessed only if the settings assure that participants reconfigure the required task set in NoGo as well as Go trials.     

Intending to Leave But No Place to Go: An Examination of the Behaviors of Reluctant Stayers

We extend recent conceptual work on withdrawal states and develop a framework to examine behavioral tendencies of reluctant stayers (i.e., employees who desire to leave but cannot). Although principles of self-interest suggest that these employees ought to behave appropriately to maintain employment, reactance theory suggests that the combination of high turnover intentions and low job alternatives may result in lower performance and greater deviance. Contrary to conventional wisdom but consistent with reactance theory, low perceived job alternatives strengthened the positive relationship between turnover intentions and deviance, as well as the negative relation between intentions to quit and task performance. Moderated-mediation analyses revealed that the indirect effect of work frustration (via turnover intentions) was stronger on task performance and deviance when perceived job alternatives were low rather than high.     

Beyond principal component analysis: A trilinear decomposition model and least squares estimation

The paper derives sufficient conditions for the consistency and asymptotic normality of the least squares estimator of a trilinear decomposition model for multiway data analysis.     

Letting go of unmet goals: Does self-focused rumination impair goal disengagement?

Self-regulation of behavior frequently requires that people disengage from goals that are too difficult to attain. The current studies investigate whether self-focused rumination hinders the execution of this crucial self-regulatory competence. In study one, participants attempted to solve anagrams, some of which were unsolvable, and their predisposition to engage in self-focused rumination was assessed. The tendency to ruminate was associated with getting stuck in the attempt to solve unsolvable anagrams. In study two, ruminative thoughts were manipulated by asking participants to focus on their self, personality, and goals in life, a task frequently employed to induce rumination. Compared to participants undergoing a distraction induction, ruminating participants were more likely to get stuck trying to solve unsolvable anagrams. These results suggest that self-focused rumination hinders disengagement from unattainable goals.     

Evidence for a fixed capacity limit in attending multiple locations

A classic question concerns whether humans can attend multiple locations or objects at once. Although it is generally agreed that the answer to this question is “yes,” the limits on this ability are subject to extensive debate. According to one view, attentional resources can be flexibly allocated to a variable number of locations, with an inverse relationship between the number of selected locations and the quality of information processing at each location. Alternatively, these resources might be quantized in a “discrete” fashion that enables concurrent access to a small number of locations. Here, we report a series of experiments comparing these alternatives. In each experiment, we cued participants to attend a variable number of spatial locations and asked them to report the orientation of a single, briefly presented target. In all experiments, participants’ orientation report errors were well-described by a model that assumes a fixed upper limit in the number of locations that can be attended. Conversely, report errors were poorly described by a flexible-resource model that assumes no fixed limit on the number of locations that can be attended. Critically, we showed that these discrete limits were predicted by cue-evoked neural activity elicited before the onset of the target array, suggesting that performance was limited by selection processes that began prior to subsequent encoding and memory storage. Together, these findings constitute novel evidence supporting the hypothesis that human observers can attend only a small number of discrete locations at an instant.     

Perceptions of Perfection: The Influence of Social Media on Interpersonal Evaluations

Through social network sites such as Facebook, people gain information about acquaintances that they would not gain from everyday life. This information typically highlights the most positive aspects of people’s personalities and lives. The goal of this investigation was to determine whether looking at another user’s Facebook profile influences perceptions of that individual’s socially desirable characteristics (e.g., intelligence, attractiveness). One group of participants viewed an acquaintance’s Facebook profile before providing evaluations, and the other evaluated the person without viewing Facebook. Results revealed that participants who viewed another person’s Facebook profile evaluated that person more favorably than those who completed a control task (Study 1) or wrote about the person from memory (Study 2). Theoretical and practical implications are discussed.