Is there a neighborhood frequency effect in English? Evidence from reading and lexical decision

What is the effect of a word's higher frequency neighbors on its identification time? According to activation-based models of word identification (J. Grainger & A. M. Jacobs, 1996; J. L. McClelland & D. E. Rumelhart, 1981), words with higher frequency neighbors will be processed more slowly than words without higher frequency neighbors because of the lexical competition mechanism embodied in these models. Although a critical prediction of these models, this inhibitory neighborhood frequency effect has been elusive in studies that have used English stimuli. In the present experiments, the effect of higher frequency neighbors was examined in the lexical decision task and when participants were reading sentences while their eye movements were monitored. Results suggest that higher frequency neighbors have little, if any, effect on the identification of English words. The implications for activation-based models of word identification are discussed.     

Does religious priming increase the prosocial behaviour of a Japanese sample in an anonymous economic game?

We examined the effect of religious priming on a Japanese sample in an anonymous dictator game whereas previous studies on religious priming on prosociality had mainly been conducted within Western contexts. The current study attempted to examine whether religion increases prosocial behaviour in a Japanese sample through the replication of ‘God is Watching You’ (Shariff & Norenzayan, 2007) where it was found that participants primed with religion‐related words and secular justice‐related words behaved more prosocially than participants primed with neutral words in an anonymous dictator game. The current experiment was conducted with Japanese students (n = 106) to examine whether the results of the original study could be applied to Japanese people. The results showed that among the three priming conditions (control, religion, secular justice), there was no difference in the amount of money participants allocated to anonymous strangers, although in the secular justice priming condition, theists allocated more money than atheists. The results might be due to the fact that the religious priming words used in the original study did not precisely activate the propositional network of religion that Japanese participants have. More culture‐specific studies are necessary to examine how religious priming works for non‐Westerners.     

Essentialism in the absence of language? Evidence from rhesus monkeys (Macaca mulatta)

We explored whether rhesus monkeys (Macaca mulatta) share one important feature of human essentialist reasoning: the capacity to track category membership across radical featural transformations. Specifically, we examined whether monkeys – like children ( Keil, 1989 ) – expect a transformed object to have the internal properties of its original category. In two experiments, monkeys watched as an experimenter visually transformed a familiar fruit (e.g. apple) into a new kind of fruit (e.g. coconut) either by placing a fruit exterior over the original, or by removing an exterior shell and revealing the inside kind of fruit. The experimenter then pretended to place an inside piece of the transformed fruit into a box which the monkey was allowed to search. Results indicated that monkeys searched the box longer when they found a piece of fruit inconsistent with the inside kind, suggesting that the monkeys expected that the inside of the transformed fruit would taste like the innermost kind they saw. These results suggest that monkeys may share at least one aspect of psychological essentialism: They maintain category‐specific expectations about an object’s internal properties even when that object’s external properties change. These results therefore suggest that some essentialist expectations may emerge in the absence of language, and thus raise the possibility that such tendencies may emerge earlier in human development than has previously been considered.     

Evidence of a Flynn Effect in Children's Human Figure Drawings (1902–1968)

The Flynn effect is the long-term trend for scores on tests of cognitive ability to increase across cohorts. Several samples of children's human figure drawings, published in 1902, 1926, 1963, and 1968, are examined for evidence of a Flynn effect. Results show that larger percentages of children draw more complete human figures over the course of the 20th century.     

Is there "feedback" during visual imagery? Evidence from a specificity of practice paradigm.

The specificity of practice hypothesis predicts the development of a sensorimotor representation specific to the afferent feedback available during skill acquisition (Proteau, 1992; Proteau, Marteniuk, Girouard, & Dugas, 1987). In the present investigation, we used the specificity of practice hypothesis to test whether skill acquisition through visual imagery would lead to the development of a sensory-specific movement representation similar to one resulting from actual practice. To accomplish this objective, participants practiced walking a 12-m linear path in one of three practice conditions, full-vision (FV), no-vision (NV), or visual imagery (VI), for either 10 or 100 trials. Knowledge of spatial and/or temporal results (KR) was provided to participants following each trial during this phase. Following acquisition, participants completed 10 NV trials without KR. An analysis of root-mean-squared-error (RMSE) indicated NV participants were more accurate than both FV and VI participants in the transfer condition. We believe the equivalence in transfer RMSE between FV and VI suggests that there are similarities between the movement representations attained by FV and VI practice.     

Are there age differences in attention to emotional images following a sad mood induction? Evidence from a free-viewing eye-tracking paradigm

Two experiments examined age differences in the effect of a sad mood induction (MI) on attention to emotional images. Younger and older adults viewed sets of four images while their eye gaze was tracked throughout an 8-s presentation. Images were viewed before and after a sad MI to assess the effect of a sad mood on attention to positive and negative scenes. Younger and older adults exhibited positively biased attention after the sad MI, significantly increasing their attention to positive images, with no evidence of an age difference in either experiment. A test of participants’ recognition memory for the images indicated that the sad MI reduced memory accuracy for sad images for younger and older adults. The results suggest that heightened attention to positive images following a sad MI reflects an affect regulation strategy related to mood repair. The implications for theories of the positivity effect are discussed.     

Is depression best viewed as a continuum or discrete category? A taxometric analysis of childhood and adolescent depression in a population-based sample

The authors examined the latent structure of depression in a population-based sample of children and adolescents. Youth's self-reports and parents' reports of the youth's Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM-IV; American Psychiatric Association, 1994) major depressive symptoms were assessed via a structured clinical interview. The authors used Meehl's (1995) taxometric procedures to discern whether youth depression is dimensional or categorical. Taxometric analyses that explicitly took into account the skewness of depressive symptoms suggested that depression is a dimensional, not categorical, construct. The dimensional structure of depression was obtained for all of the DSM-IV major depressive symptoms as well as for different domains of depression (emotional distress symptoms and vegetative, involuntary defeat symptoms), youth and parent reports, and different subsamples (i.e., boys vs. girls and younger vs. older youth).     

Is there an ‘end of history illusion’ for life satisfaction? Evidence from a three-wave longitudinal study

According to the ‘end of history illusion’ (EOHI) individuals underestimate the amount of future change they will experience. Using results from a three-wave longitudinal study of American adults (N = 2390, mean age = 55.31 years, 56% female), we examined ratings of recollected past (10 years prior), current, and anticipated future (10 years later) life satisfaction at Wave 2, as well as current life satisfaction at Wave 1 (nine years earlier) and at Wave 3 (nine years later). Younger adults typically underestimated their past and overestimate their future LS, whereas older adults tended to underestimate their future LS. Contrary to the EOHI, most individuals either were accurate or anticipated too much change into the future, rather than too little.     

Is there a genuine advantage to the upper part of words during lexical access? Evidence from the Stroop task

A number of recent visual-word recognition and reading experiments have concluded that the upper part of words is more important for lexical access than is the lower part, which conforms with Huey’s (1908) observation. Here, we examined whether this phenomenon may simply be due to the fact that words in Indo-European languages tend to have a higher number of confusable letters in the lower than in the upper part. We manipulated the letter ambiguity of the upper and lower parts of words in two experiments in which we asked participants to report the presentation color of the upper and lower parts of color words and noncolor words, and in a baseline condition, of strings of &s (Stroop task). In Experiment 1, the lower part of noncolor words was more ambiguous than the upper part (upward-unbalanced words), whereas in Experiment 2, the ambiguities of the two parts of the noncolor words were similar (balanced words). For the upward-unbalanced noncolor words, the magnitude of lexical interference (relative to the baseline condition) was greater for the upper than for the lower part. Critically, the differences vanished when this factor was controlled (i.e., balanced words; Exp. 2). Thus, the apparent bias in favor of the upper part of words can be parsimoniously described as an idiosyncratic feature of the words’ component letters.     

Is there a pop-out of exclusively binocular (cyclopean) contours and regions?

In this work, contours and texture regions were designed so that they could not be observed by either eye alone, but only after images from both eyes were fused into a single stereoscopic picture. Two planes of random dots were positioned one in front of the other so that their random-dot patterns were transparently overlaid. In this way the dot pattern in the front plane was completely masked by the dots in the back plane for either eye on its own. Such exclusively binocular or 'cyclopean' stimuli are therefore defined by a conjunction of depth information with other basic visual features. It is shown that, unlike their monocular counterparts, cyclopean contours do not pop-out. It is also shown that cyclopean regions pop-out only when they have either much higher or much lower luminance contrast than their surroundings, or (for some observers) when the cyclopean region is defined by motion contrast. Colour, luminance-contrast sign, and orientation-defined regions are not easily detected even when viewed attentively.     

Examining the link between adolescent brain development and risk taking from a social–developmental perspective (reprinted)

The adolescent age period is often characterized as a health paradox because it is a time of extensive increases in physical and mental capabilities, yet overall mortality/morbidity rates increase significantly from childhood to adolescence, often due to preventable causes such as risk taking. Asynchrony in developmental time courses between the affective/approach and cognitive control brain systems, as well as the ongoing maturation of neural connectivity are thought to lead to increased vulnerability for risk taking in adolescence. A critical analysis of the frequency of risk taking behaviors, as well as mortality and morbidity rates across the lifespan, however, challenges the hypothesis that the peak of risk taking occurs in middle adolescence when the asynchrony between the different developmental time courses of the affective/approach and cognitive control systems is the largest. In fact, the highest levels of risk taking behaviors, such as alcohol and drug use, often occur among emerging adults (e.g., university/college students), and highlight the role of the social context in predicting risk taking behavior. Moreover, risk taking is not always unregulated or impulsive. Future research should broaden the scope of risk taking to include risks that are relevant to older adults, such as risky financial investing, gambling, and marital infidelity. In addition, a lifespan perspective, with a focus on how associations between neural systems and behavior are moderated by context and trait-level characteristics, and which includes diverse samples (e.g., divorced individuals), will help to address some important limitations in the adolescent brain development and risk taking literature.     

To what extent do we process the nondominant object in a morphed figure? Evidence from a picture–word interference task

Since the 1970s, the Heuristics and Biases Program in Cognitive Psychology has shown that people do not reason correctly about conditional probability problems. In the 1990s, however, evolutionary psychologists discovered that if the same problems are presented in a different way, people's performance greatly improves. Two explanations have been offered to account for this facilitation effect: the natural frequency hypothesis and the nested-set hypothesis. The empirical evidence on this debate is mixed. We review the literature pointing out some methodological issues that we take into account in our own present experiments. We interpret our results as suggesting that when the mentioned methodological problems are tackled, the evidence seems to favour the natural frequency hypothesis and to go against the nested-set hypothesis.     

Body weight increase in expectant males and helpers of cotton-top tamarin (Saguinus oedipus): a symptom of the Couvade syndrome?

In the cooperative breeding system of cotton-top tamarin (TCB; Saguinus oedipus) males gain weight during the last months of pregnancy of their partners as a way to cope with energy costs of reproduction. This phenomenon was described only in humans as a symptom of . As after infants' birth, TCB male and female helpers lose weight, the same as fathers do, it might be expected that previously, they also gain weight. In 8 groups of TCB, we explored body weight changes of the three categories of individuals, in periods of six months, under three different reproductive conditions: control (no pregnancy and without offspring), pregnancy (pregnancy and without offspring), and raising (with offspring). We found that across pregnancy, TCBs increase their weight in the last trimester of that period while across breeding TCBs reduce their weight in the first trimester. Expectant males and also helpers could be preparing during pregnancy in relation to the weight losses they experience when raising their young.     

Was that (cyber)bullying? Investigating the operational definitions of bullying and cyberbullying from adolescents’ perspective

Background/Objective: Despite the great interest that bullying and cyberbullying have received during the last decades, the problem of defining these phenomena is still debated. Recently, this discussion has also been articulated in terms of how young people who are directly involved in bullying and cyberbullying understand these notions. This study aimed at investigating the operational definitions of both bullying and cyberbullying provided by adolescent victims and perpetrators, by inquiring the weight of traditional criteria (i.e., frequency, deliberateness, imbalance of power, and harm) as well as dominance in the perception of these phenomena. Method: A total of 899 students aged between 11 and 16 years filled out the Student Aggression and Victimisation Questionnaire. Results: Common traits and differences between the operational definition of bullying and cyberbullying and between the perspectives of victims and perpetrators of aggression were found. The most relevant criterion for the perception of both these phenomena was clearly the presence of dominance. By contrast, the imbalance of power showed no significant relationship with the perception of being bullied or bullying others both offline and online. Conclusions: Findings emphasise that young people conceptualise bullying with a clear reference to relational and group processes, rather than to individual differences.     

Is there a fact of the matter between direct reference theory and (neo-)Fregeanism?

It is argued here that there is no fact of the matter between direct reference theory and neo-Fregeanism. To get a more precise idea of the central thesis of this paper, consider the following two claims: (i) While direct reference theory and neo-Fregeanism can be developed in numerous ways, they can be developed in essentially parallel ways; that is, for any (plausible) way of developing direct reference theory, there is an essentially parallel way of developing neo-Fregeanism, and vice versa. And (ii) for each such pair of theories, there is no fact of the matter as to which of them is superior; or more precisely, they are tied in terms of factual accuracy. These are sweeping claims that cannot be fully justified in a single paper. But arguments are given here that motivate these theses, i.e., that suggest that they are very likely true.     

Cooperation as a signal of genetic or phenotypic quality in female mate choice? Evidence from preferences across the menstrual cycle

Previous research highlighting the role sexual selection may play in the evolution of human cooperation has yet to distinguish what qualities such behaviours actually signal. The aim here was to examine whether female preferences for male cooperative behaviours are because they signal genetic or indirect phenotypic quality. This was possible by taking into account female participants' stage of menstrual cycle, as much research has shown that females at the most fertile stage show greater preferences specifically for signals of genetic quality than any other stage, particularly for short-term relationships. Therefore, different examples of cooperation (personality, costly signals, heroism) and the mate preferences for altruistic traits self-report scale were used across a series of four experiments to examine females' attitudes towards cooperation in potential mates for different relationship lengths at different stages of the menstrual cycle. The results here consistently show that female fertility had no effect on perceptions of cooperative behaviour, and that such traits were considered more important for long-term relationships. Therefore, this provides strong evidence that cooperative behaviour is important in mate choice as predominantly a signal of phenotypic rather than genetic quality.     

Psychometric properties of the “Spanish Burnout Inventory” (SBI): Adaptation and validation in a Portuguese-speaking sample

IntroductionTeaching and nursing are two of the most stressful occupations. The Maslach Burnout Inventory (MBI) has some limitations that require using it with caution out of the American and Anglo-Saxon context. To address the problems associated with the MBI was developed the Spanish Burnout Inventory (SBI).ObjectiveThis study was designed to assess the psychometric properties of the Portuguese version of the SBI.MethodThe sample consisted of 211 teachers and 133 nurses from Portugal. The psychometric properties were examined through the following analyses: confirmatory factor analysis (CFA), reliability (Cronbach's alpha), and concurrent validity with the MBI.ResultsThe four-factor model obtained an adequate data fit for the sample. The Cronbach's alpha coefficient was adequate for the four scales of the instrument. Results supported the concurrent validity.ConclusionAs a whole, results show that the four-factor model of the SBI possesses adequate psychometric properties for the study of burnout in the Portuguese cultural context.