The curse of knowledge: first language knowledge impairs adult learners' use of novel statistics for word segmentation

We investigated whether adult learners' knowledge of phonotactic restrictions on word forms from their first language impacts their ability to use statistical information to segment words in a novel language. Adults were exposed to a speech stream where English phonotactics and phoneme co-occurrence information conflicted. A control where these did not conflict was also run. Participants chose between words defined by novel statistics and words that are phonotactically possible in English, but had much lower phoneme contingencies. Control participants selected words defined by statistics while experimental participants did not. This result held up with increases in exposure and when segmentation was aided by telling participants a word prior to exposure. It was not the case that participants simply preferred English-sounding words, however, when the stimuli contained very short pauses, participants were able to learn the novel words despite the fact that they violated English phonotactics. Results suggest that prior linguistic knowledge can interfere with learners' abilities to segment words from running speech using purely statistical cues at initial exposure.     

The Relation Between Experience and Spatial Performance in Men and Women

The purpose of the present study was to test the hypothesis that environmental factors affect the magnitude of gender differences in spatial performance only when the tasks used are susceptible to the influence of such factors. Two hundred and ninety White middle-class undergraduate students (165 females, 125 males) completed the Vandenberg and Kuse Mental Rotations Test (MRT), a paper and pencil version of the Water Level Task (WLT), and toys and sports preference questionnaires. Results revealed that males outperformed females on both spatial tests. In addition, a main effect of toys preference showed that participants with a spatial toys preference outperformed those with a nonspatial preference on both the MRT and the WLT. This main effect was qualified by an interaction between this factor and gender. The interaction was found only on the WLT and showed that gender differences were only significant in participants with a nonspatial preference. An interaction of sports preference and gender was also observed. This interaction revealed that, in contrast to what was obtained with toys, gender differences on both spatial tests were significant only in participants with a spatial sports preference. Implications of these findings with regard to the development of gender differences in spatial abilities are discussed.     

The role of importance/consequentiality appraisal in flashbulb memory formation: the case of the death of Pope John Paul II

This study investigates how flashbulb memories (FBMs) relative to the death of Pope John Paul II vary according to the persons' evaluation of the event's importance and consequences. In particular, FBMs were investigated in persons who were expected to attribute different degrees of importance/consequentiality to the event as a function of two factors: (1) religious involvement, (2) nationality (Polish, Italian, Swiss). The comparison was made with respect to the following hypothesized determinants of FBMs: surprise, emotional reaction, rehearsal, event memory and especially the attitudes towards the Pope and the appraisal of the importance and the consequences of his death. Structural equation modelling indicates that importance/consequentiality is a fundamental determinant of FBM and is influenced by antecedent personal and social characteristics reflected in the person's attitudes. Moreover, memory consistency seems to be both directly influenced by emotional intensity and indirectly through rehearsal, whereas surprise seems not a critical determinant of FBM. Copyright © 2008 John Wiley & Sons, Ltd.     

Memory for an imagined pathway and strategy effects in sighted and in totally congenitally blind individuals

The literature reports mixed results on the imagery abilities of the blind, at times showing a difference between sighted and blind individuals and at other times similarities. However, the possibility that the results are due to different strategies spontaneously used in performing the imagery tasks has never been systematically studied. A large group of 30 totally congenitally blind (TCB) individuals and a group of 30 sighted individuals matched for gender age and schooling were presented with a mental pathway task on a complex two-dimensional (5 × 5) matrix. After administering the task, participants were interviewed in order to establish the strategy they used. Results showed that both sighted and TCB may use a spatial mental imagery, a verbal or a mixed strategy in carrying out the task. Differences between the groups emerged only when last location and then entire pathway had to be remembered rather than just the last position, and were clearly affected by the type of strategy. Specifically, TCB performed more poorly than the sighted individuals when they used a spatial mental imagery strategy, whereas the two groups had a similar performance with a verbal strategy.     

A competitive nonverbal false belief task for children and apes

A nonverbal false belief task was administered to children (mean age 5 years) and two great ape species: chimpanzees (Pan troglodytes) and bonobos (Pan paniscus). Because apes typically perform poorly in cooperative contexts, our task was competitive. Two versions were run: in both, a human competitor witnessed an experimenter hide a reward in one of two containers. When the competitor then left the room (version A) or turned around (version B), the experimenter switched the locations of the containers. The competitor returned and reached with effort, but unsuccessfully, towards the incorrect container. Children displayed an understanding of the competitor's false belief by correctly choosing the other container to find the reward. Apes did not. However, in version A (but not version B), apes looked more often at the unchosen container in false belief trials than in true belief control trials, possibly indicating some implicit or uncertain understanding that needs to be investigated further.     

“I Don’t Want to Be an Ostrich”: Managing Mothers’ Uncertainty during BRCA1/2 Genetic Counseling

Families who face genetic disease risk must learn how to grapple with complicated uncertainties about their health and future on a long-term basis. Women who undergo BRCA 1/2 genetic testing describe uncertainty related to personal risk as well as their loved ones’, particularly daughters’, risk. The genetic counseling setting is a prime opportunity for practitioners to help mothers manage uncertainty in the moment but also once they leave a session. Uncertainty Management Theory (UMT) helps to illuminate the various types of uncertainty women encounter and the important role of communication in uncertainty management. Informed by UMT, we conducted a thematic analysis of 16 genetic counseling sessions between practitioners and mothers at risk for, or carriers of, a BRCA1/2 mutation. Five themes emerged that represent communication strategies used to manage uncertainty: 1) addresses myths, misunderstandings, or misconceptions; 2) introduces uncertainty related to science; 3) encourages information seeking or sharing about family medical history; 4) reaffirms or validates previous behavior or decisions; and 5) minimizes the probability of personal risk or family members’ risk. Findings illustrate the critical role of genetic counseling for families in managing emotionally challenging risk-related uncertainty. The analysis may prove beneficial to not only genetic counseling practice but generations of families at high risk for cancer who must learn strategic approaches to managing a complex web of uncertainty that can challenge them for a lifetime.     

Examining the Latent Structure of Gambling Motivation and Its Relationship with Gambling Behavior in Gambling-Exposed Chinese Casino Employees

Examining why individuals engage in gambling is important in understanding the development of gambling behaviors. Numerous studies have investigated the underlying factor of gambling motivation. However, there is a dearth of evidence showing the latent dimensions of gambling motivation among individuals who are exposed to gambling in daily basis (i.e., casino employees). To address this gap, 817 casino employees were administered the Chinese version of the Gambling Motivation Scale (GMS) and other related measures. Results revealed that of the four models tested, a first-order model with seven factors achieved better fit in contrast to all other models. The seven factors include intrinsic motivation (IM) for knowledge, IM for accomplishment, IM for stimulation, extrinsic motivation (EM) due to identified regulation, EM due to introjected regulation, EM due to external regulation, and amotivation. However, the seven-factor model did not reach the conventional fit indices for good fit. After some post hoc modifications, the revised model achieved adequate fit. Moreover, the revised seven factors were related to frequency of gambling and amount spent for gambling. Generally, results showed that modified GMS with seven factors can be used with Chinese population, more specifically with Chinese casino employees.