Shuffling your way out of change blindness

Change detection is typically discussed in the literature as a 2-state phenomenon. Small differences between otherwise identical images are easy to detect when the images are superimposed in space and alternated in time (“shuffled”). However, change blindness results from any disruption that prevents the critical change from generating the sole salient transient. Here we show that different presentation strategies produce different degrees of change blindness for the same change. Specifically, shuffling the images supports faster change detection than viewing the same 2 images side by side, even when the images contain a number of distracting differences. In Experiment 1, pairs of photographs having a 50 % chance of containing a difference were viewed either in alternation, in a “Shuffle” condition, or simultaneously, in a “Side-by-Side” condition. Change detection was about 6 seconds faster when the images were viewed in the “Shuffle” mode. In Experiment 2, we presented two images that were slightly laterally shifted relative to each other (0–48 pixels). The RT benefit for the Shuffle viewing mode was very strong when the relative shift was small, to insignificant when there was a large difference between the two images. However, at large shifts, Shuffle maintained an accuracy advantage. It seems that changes are easier to detect when comparing images in a Shuffle condition rather than Side-by-Side. This has important implications for real world tasks like radiology where detection of change is critical.     

Perceptions of Systemic Justice: The Effects of Distributive, Procedural, and Interactional Justice

The literature on organizational justice has identified 3 key components of this process: distributive, procedural, and interactional justice. On the basis of fairness heuristic theory, we reasoned that employees may use perceptions of these 3 components as a basis for drawing inferences about the fairness of the organization as a whole (i.e., their perceptions of systemic justice). A field study was conducted on a sample of 232 employees working in various organizations. Results show that employees' perceptions of procedural justice and interactional justice in their organizations positively predicted perceptions of systemic justice (i.e., that the organization was fair overall). Perceptions of distributive justice, however, did not predict perceptions of systemic justice. Practical implications of these findings are discussed.     

Transfer of self-control in black (Eulemur macaco) and brown (Eulemur fulvus) lemurs: choice of a less preferred food item under a reverse-reward contingency

When presented a choice between two food-type arrays of equivalent size under a reverse-reward contingency, black (Eulemur macaco) and brown (Eulemur fulvus) lemurs transposed their self-control abilities, acquired in a previous experiment, to significantly select the less-desired food item in order to gain access to the more desired one. However, when presented with the choice between two different food-type arrays in which the amount of the less desired food array was larger than the more desired one, large individual differences were revealed: Some subjects established a consistent rule favoring quality or quantity, whereas others exhibited various point of trade-off. These results show that lemurs seem to manage the task considering not only food quantity but also food quality.     

Rephrasing the madness and creativity debate: What is the nature of the creativity construct?

This paper aims to reframe the debates about the association between creativity and mental illness. For centuries the link between the two has been debated, yet research has largely ignored the underlying nature of creativity in this context. The full understanding of the creativity construct, however, is essential to completely grasp its relationship with psychopathology. Three possible models for the creativity construct are proposed: the existence of different kinds of creativity each associated with specific types of psychopathology, creativity operating as a continuum, and creativity as a single entity. Support for each model is examined among the current literature. It is concluded that all three models are viable possibilities for the conceptualization of the creativity construct, each offering ample predictions and hypotheses for future research.     

“They Dumped Me Like Trash”: The Social and Psychological Toll of Victimization on Latino Day Laborers' Lives

Although recent rhetoric links undocumented immigrants to criminality, reports indicate undocumented immigrants commit less crime than their native-born counterparts and that this vulnerable group may be at increased risk for criminal victimization. Immigrants living in new immigrant settlement cities may be particularly at risk for exposure to criminal victimization due to the vulnerabilities associated with a lack of an established Latino community and limited availability of culturally appropriate social services to provide support. This ethnographic study examines the experiences of victimization and its social and psychological toll of a street-recruited sample of Latino day laborers (LDLs) (N = 25) living and working in Baltimore, a new immigrant settlement city. Findings elucidate and describe the specific types of victimization experienced by LDLs, including workplace victimization (wage theft, abandonment at the jobsite, poor working conditions, verbal abuse) and street-level victimization (assault and robbery), as well as reveal the social and psychological toll of victimization (sociocultural alienation, despair or desesperación, and problem drinking) on their lives. Findings have implications for community psychology, through research and practice, as they provide insights for prevention and intervention within the intersection of structural vulnerability (i.e., undocumented immigration status), violence, and mental health.     

Infant Socioeconomic Position and Quality of Life in Midlife: A 50-Year Follow-Up Study of 2079 Individuals in Denmark

Applied Research in Quality of Life - During the last decades, an important line of public health research has focused on the influence of socioeconomic position (SEP) on the quality of life (QoL)...     

Time preferences in long-tailed macaques (Macaca fascicularis) and humans (Homo sapiens)

Rosati et al. (Curr Biol 17(19):1663–1668, 2007) found in a self-control test in which choice was between a smaller, immediately delivered food and a larger, delayed food, that chimpanzees preferred the larger reward (self-control); humans, however, preferred the smaller reward (impulsivity). They attributed their results to a species difference in self-control. In Experiment 1, monkeys (long-tailed macaques) were exposed to a self-control task in two conditions: where the food was hidden under differently colored bowls and where it was visible. When these two conditions were compared, choice shifted from greater preference for the impulsive alternative in the hidden condition to greater preference for the self-control alternative in the visible condition. Additionally, in both conditions, preference shifted from self-control to impulsivity over sessions. These results were explained in terms of the reversed-contingency effect (a propensity to reach for more over less when rewards are visible) and not to a capacity for self-control. In Experiment 2, humans that demonstrated preference for more over less in choice preferred the impulsive alternative when choice to either alternative was followed by the same intertrial interval—a preference that accelerates trial rates relative to preference of the self-control alternative. When trial rates were equated so that neither choice accelerated session’s end, humans demonstrated self-control. These results suggest that Rosati et al.’s demonstration of impulsivity in humans was due to participants’ desire to minimize session time.     

Level of initial training moderates the effects of distributing practice over multiple days with expanding,contracting, and uniform schedules: Evidence for study-phase retrieval

Inconsistent results have been obtained in experiments comparing the effects on retention of expanding, contracting, and uniform practice schedules, in which the spacing between successive practice sessions progressively increases, progressively decreases, or remains constant, respectively. In the present study, we experimentally assessed an apparent trend in the literature for expanding schedules to be more advantageous than other schedules following a low level of training during the initial learning session, but not following a high level of initial training. College students studied pseudocword–word pairs in multiple practice sessions distributed over a 13-day period according to expanding, contracting, and uniform schedules. During their initial learning session, participants received either low-level training (two study trials) or high-level training (one study trial and then five rounds of practice testing with corrective feedback). All participants were treated identically in the subsequent practice sessions. A final cued-recall test after a two-week retention interval revealed an expanding-schedule superiority following low-level initial training but not following high-level initial training. These results are interpreted in terms of a study-phase-retrieval mechanism and help explain the mixed results obtained in the prior literature.     

Are smokers interested in genetic testing for smoking addiction? A socio-cognitive approach

Genetic advances have made genetically tailored smoking cessation treatments possible. In this study, we examined whether smokers are interested in undergoing a genetic test to identify their genetic susceptibility to nicotine addiction. In addition, we aimed to identify socio-cognitive determinants of smokers' intention to undergo genetic testing. Following the protection motivation theory (PMT), we assessed the following constructs using an online survey among 587 smokers: threat appraisal (i.e. susceptibility and severity), fear, coping appraisal (i.e. response efficacy and self-efficacy), response costs and intention. In addition, knowledge, social norms and information-seeking behaviour were measured. Mean intention rates were 2.57 on a 5-point scale. Intention was significantly associated with threat appraisal and coping appraisal, as predicted by the PMT. Fear of the outcome was negatively associated with the intention to undergo genetic testing, but response costs, knowledge and social influence were not. Intention to undergo genetic testing in turn was positively related to seeking information about genetic testing and genetically tailored smoking cessation treatments. Smokers seem ambivalent or 'on the fence' with regard to undergoing a genetic test for smoking addiction. Socio-cognitive concepts such as susceptibility, severity, response efficacy and self-efficacy may be used to inform or educate smokers about the value of genetically tailored smoking cessation treatments.     

A cross-linguistic data bank for oral picture naming in Dutch, English, German, French, Italian, Russian, Spanish, and Swedish (PEDOI)

The well established effect of word frequency on adult's picture naming performance is now called into question. This is particularly true for variables which are correlated with frequency, as is the case of age of word acquisition. Since the work of [Carrol and White, 1973] there is growing agreement among researchers to confer an important role in lexical access to this variable. Indeed, it has been shown ( [Hodgson and Ellis, 1998]) that for normal English-speaking adults only the variables 'age-of-acquisition' and 'name agreement' are independent predictors of naming success among the various variables considered. However, when brain-damaged subjects with and without degenerative pathologies are studied, word frequency and word length as well as concept familiarity all give significant effects ( [Hirsh and Funnell, 1995]; [Lambon Ralph et al., 1998]; [Nickels and Howard, 1995]). Finally, it has been suggested that the production of specific error types may be related to such variables. According to [Nickels and Howard, 1994] the production of semantic errors is specifically affected by 'imageability' and in the recent study by [Kremin et al., 2001] 'age of acquisition' predicts (frank) word finding difficulties.