Analysis and analogy in the perception of vowels

In two experiments, we investigated the creation of conceptual analogies to a contrast between vowels. An ordering procedure was used to determine the reliability of simple sensory and abstract analogies to vowel contrasts composed by naive volunteers. The results indicate that test subjects compose stable and consistent analogies to a meaningless segmental linguistic contrast, some invoking simple and complex relational properties. Although in the literature of psychophysics such facility has been explained as an effect of sensory analysis, the present studies indicate the action of a far subtler and more versatile cognitive function akin to the creation of meaning in figurative language.     

We will hunt them down: How social dominance orientation and right-wing authoritarianism fuel ethnic persecution of immigrants in fundamentally different ways

Despite the fact that SDO and RWA are correlated with one another and both predict support for ethnic persecution of immigrants, it is argued that this aggression is provoked for very different reasons. For authoritarians, outgroup aggression against immigrants should primarily be provoked by immigrant refusal to assimilate into the dominant culture because this violates ingroup conformity. In contrast, SDO should be associated with aggression against immigrants who do assimilate into the dominant culture because this blurs existing status boundaries between groups. Using samples of American and Swiss college students, the data were consistent with this status boundary enforcement hypothesis regarding social dominators and largely consistent with the ingroup conformity hypothesis regarding authoritarians. National and ethnic identification did not account for these results. The results further support the argument that outgroup prejudice and discrimination is most fruitfully seen as an interactive function of individual differences and situational constraints.     

The role of mothers' control in children's mastery orientation: a time frame analysis

Important to understanding the process by which parents' control shapes children's motivation is identifying the time frame in which it does so. To this end, mothers and their 4-year-old children were observed interacting for 15 min while working on a challenging task twice over 6 months. Mothers' control and children's mastery orientation were coded in 1-min intervals at both times. Analyses over the 6 months indicated that mothers' heightened control foreshadowed children's dampened mastery because mothers' control was stable over time. Analyses over the 15-min interactions revealed that the more controlling mothers were one minute, the less mastery oriented children were the next minute, adjusting for their earlier mastery. Moreover, when mothers began these interactions highly controlling, children's mastery was particularly likely to decrease over the 15 min. Taken together, the results suggest the effect of mothers' control on children's mastery is immediate and maintained through mothers' continued controlling practices.     

Demographic correlates of constant condom use among sex workers in Tangail, Dhaka, Bangladesh

Consistent condom use, particularly by promiscuous individuals, is a major safeguard against sexually transmitted diseases, including HIV/AIDS. This study examines some demographic factors that may affect such use among Bangladeshi female commercial sex workers at a brothel in Tangail (n = 196; mean age = 23.44 years), and the streets of Dhaka (n = 112; mean age = 25.92 years). The chi2 results indicated that sex workers over 19 years of age were 2.52 times more likely than adolescents under 19 to work on the street rather than at a brothel (chi2 = 8.73, p < .0.01, OR = 2.52, 95% CI = 1.35-4.72). Brothel sex workers aged over 19 years reported 3.26 probability to regularly use condom with clients than those adolescents aged below 19 years (chi2 = 6.23, p < 0.01, OR = 3.26, 95% CI = 1.25-8.53). This study found age to be a significant demographic correlate of regular condom use, particularly, among the brothel workers.     

The effects of Δ9 THC on cutaneous sensitivity and its relation to personality

Pain threshold/tolerance and vibration perception were studied in a sample of female frequent and infrequent cannabis users. Interactions with personality characteristics were examined using the EPI. Performance on all measures was investigated after oral administration of either 10mgΔ⁹ THC or 20 mg Δ⁹ THC. Results indicated that while the 10mg dosage produced no consistent changes in cutaneous sensory response, the 20 mg dosage was followed by lowering of the vibration threshold. Frequent and infrequent cannabis users differed in their response to the pain stimulus (pain tolerance scores were higher among infrequent users). They also differed with respect to the personality measure (frequent users had lower E, N and L scores). The findings provide experimental support for cannabis users' reports of enhanced sensory awareness consequent to drug intake. The results also show that frequent and infrequent cannabis users differ in pain response and personality characteristics.     

How Gendered Attitudes Relate to Women’s and Men’s Sexual Behaviors and Beliefs

This study examines associations between endorsement of a sexual double standard, gender role attitudes, and sexual behaviors and beliefs. First year university students in the northeastern United States (N = 434; 52 % female; 33 % Black, 29 % Latino, 39 % White; ages 17–19) participated during their first year of college. Endorsement of a sexual double standard was associated with more conventionally gender-stereotyped sexual behaviors and beliefs, specifically, more sexual partners and fewer perceived barriers to condom use for young men, and more perceived barriers to condom use for young women. Women who were more conventional about men’s roles in society tended to use condoms less, whereas women who were more conventional about women’s roles tended to use condoms more. Men who were more conventional about men’s roles tended to have fewer sexual partners. Findings suggest the importance of examining gender’s role in sexual behaviors and beliefs by assessing multiple gendered attitudes, rather than simply considering biological sex.     

Developmental differences in memory for cross‐modal associations

Associative learning is critical to normal cognitive development in children. However, young adults typically outperform children on paired‐associate tasks involving visual, verbal and spatial location stimuli. The present experiment investigated cross‐modal odour–place associative memory in children (7–10 years) and young adults (18–24 years). During the study phase, six odours were individually presented and paired with one of 12 spatial locations on a board. During the test phase, participants were presented with the six stimuli individually and were asked to place each stimulus on the correct spatial location. Children committed significantly more errors on the odour–place task than did young adults. However, item recognition memory for the odours or spatial locations involved in the odour–place associative memory task was similar between children and young adults. Therefore, poor odour–place associative memory in children did not result from impaired memory for the individual odours or spatial locations involved in the associations. The results suggest that cross‐modal associative memory is not fully developed in children.     

Discriminating between strong and weak structures in three‐mode principal component analysis

Recently, a number of model selection heuristics (i.e. DIFFIT, CORCONDIA, the numerical convex hull based heuristic) have been proposed for choosing among Parafac and/or Tucker3 solutions of different complexity for a given three‐way three‐mode data set. Such heuristics are often validated by means of extensive simulation studies. However, these simulation studies are unrealistic in that it is assumed that the variance in real three‐way data can be split into two parts: structural variance, due to a true underlying Parafac or Tucker3 model of low complexity, and random noise. In this paper, we start from the much more reasonable assumption that the variance in any real three‐way data set is due to three different sources: (1) a strong Parafac or Tucker3 structure of low complexity, accounting for a considerable amount of variance, (2) a weak Tucker3 structure, capturing less prominent data aspects, and (3) random noise. As such, Parafac and Tucker3 simulation studies are run in which the data are generated by adding a weak Tucker3 structure to a strong Parafac or Tucker3 one and perturbing the resulting data with random noise. The design of these studies is based on the reanalysis of real data sets. In these studies, the performance of the numerical convex hull based model selection method is evaluated with respect to its capability of discriminating strong from weak underlying structures. The results show that in about two‐thirds of the simulated cases, the hull heuristic yields a model of the same complexity as the strong underlying structure and thus succeeds in disentangling strong and weak underlying structures. In the vast majority of the remaining third, this heuristic selects a solution that combines the strong structure and (part of) the weak structure.     

How do Curiosity,Meaning in Life,and Search for Meaning Predict College Students’ Daily Emotional Exhaustion and Engagement?

College students face numerous academic demands on a daily basis. The resources of the University and of the students to cope with these demands are essential to explain students’ levels of well-being. The purpose of this investigation is to explore the role of day-level curiosity and meaning in life in the explanation of students’ levels of engagement and emotional exhaustion at night. Two-hundred and nine college students participated in a daily study of five consecutive academic days, completing measures of curiosity and meaning in life in the afternoon and measures of engagement and emotional exhaustion at night. Data were analyzed using MLwiN software from a hierarchical linear modeling and daily approach. Curiosity in the afternoon showed a positive relationship with levels of engagement at night, and a negative relationship with levels of emotional exhaustion at night. Moreover, the interaction of curiosity and search for meaning and emotional exhaustion was positive. Although curiosity drives to exploring opportunities and challenges, decreases exhaustion and promotes daily engagement, when curiosity interacts with other emotional loads (such as search for meaning), it can become an emotional overload favoring exhaustion. From this perspective, it is necessary to continue investigating the mechanisms that predict students’ well-being and to create academic environments that stimulate curiosity and support students in their search for meaning in life.