Bubble sorting in a foam under forced drainage

A highly polydisperse foam is subjected to a constant liquid flow from above. For sufficiently high flow rates, large-scale bubble motion is observed, in the course of which large bubbles rise to the top of the foam until a steady state is reached at which the average bubble size increases smoothly with height.     

The irrelevant sound effect under articulatory suppression is a suffix effect even with five-item lists

The relationship between the suffix effect and the effect of irrelevant sound on serial recall of auditorily presented lists is investigated in this study. Contrary to the predictions of the phonological loop model, Hanley and Hayes (2012) reported that the irrelevant sound effect was abolished under articulatory suppression when a spoken suffix was added at the end of the list. The experiment reported in this paper uses a shorter list length (five items per list) than that employed by Hanley and Hayes. This is because it cannot realistically be argued that participants will abandon the use of phonological codes to retain the list items with sequences as short as this. Results replicated those of Hanley and Hayes (2012). There was a significant effect of irrelevant sound under articulatory suppression when the list items were followed by an auditory tone. Crucially, however, the effect of irrelevant sound under articulatory suppression was abolished when the list items were followed by a spoken suffix.     

Sensitivity of different measures of the visibility of masked primes: influences of prime-response and prime-target relations

Visual masking of primes lowers prime visibility but spares processing of primes as reflected in prime–target congruence and prime–response compatibility effects. However, the question is how to appropriately measure prime visibility. Here, we tested the influence of three procedural variables on prime visibility measures: prime–target similarity, prime–response similarity, and the variability of prime–response mappings. Our results show that a low prime–target similarity is a favorable condition for a prime visibility measure because it increases the sensitivity of this measure in comparison to a high prime–target similarity.     

Grouping information for judgments

Models of cue weighting in judgment have typically focused on how decision-makers weight cues individually. Here, the authors propose that people might recognize and weight groups of cues. They examine how judgments change when decision-makers focus on cues individually or as parts of groups. Several experiments demonstrate that people can spontaneously pack information into cue groups. Moreover, group-level weighting depends on how people assess similarity or how they think of categorical hierarchies.     

No conflict control in the absence of awareness

Introduction  

In the present study we tested whether control over the impact of potentially conflicting information depends on awareness of that conflicting information.     

Measuring Attitudes in Test-Alien Cultures: When Illiteracy and Unfamiliarity Do Not Matter

This study reports the construction of an attitude scale called a "Shah attitude scale." This scale overcomes the problems of scale construction and attitude measurement in test-alien cultures peculiar to Western scales. The major problems with the use of these scales are the non-correspondence of the samples used in scale construction and attitude measurement, difficulty of their use with the illiterate and rural samples, unfamiliarity of their verbal character and the response modality. Our scale is simple to construct and can be easily used with every section of society. Its conceptualization and development is based upon the agreed upon bipolar definition of attitude and the ideas derived from well-known attitude scales. The scale is based upon trait adjectives and can be used easily in cross-cultural attitudinal studies.     

Training and transfer effects in task switching

Performance on task switching, a paradigm commonly used to measure executive function, has been shown to improve with practice. However, no study has tested whether these benefits are specific to the tasks learned or are transferable to new situations. We report evidence of transferable improvement in a cued, randomly switching paradigm as measured by mixing cost, but we report no consistent improvement for switch cost. Improvement in mixing costs arises from a relative reduction in time to perform both switch and nonswitch trials that immediately follow switch trials, implicating the ability to recover from unexpected switches as the source of improvement. These results add to a growing number of studies demonstrating generalizable improvement with training on executive processing.