Probing Lexical Ambiguity: Word Vectors Encode Number and Relatedness of Senses

Lexical ambiguity—the phenomenon of a single word having multiple, distinguishable senses—is pervasive in language. Both the degree of ambiguity of a word (roughly, its number of senses) and the relatedness of those senses have been found to have widespread effects on language acquisition and processing. Recently, distributional approaches to semantics, in which a word's meaning is determined by its contexts, have led to successful research quantifying the degree of ambiguity, but these measures have not distinguished between the ambiguity of words with multiple related senses versus multiple unrelated meanings. In this work, we present the first assessment of whether distributional meaning representations can capture the ambiguity structure of a word, including both the number and relatedness of senses. On a very large sample of English words, we find that some, but not all, distributional semantic representations that we test exhibit detectable differences between sets of monosemes (unambiguous words; N = 964), polysemes (with multiple related senses; N = 4,096), and homonyms (with multiple unrelated senses; N = 355). Our findings begin to answer open questions from earlier work regarding whether distributional semantic representations of words, which successfully capture various semantic relationships, also reflect fine-grained aspects of meaning structure that influence human behavior. Our findings emphasize the importance of measuring whether proposed lexical representations capture such distinctions: In addition to standard benchmarks that test the similarity structure of distributional semantic models, we need to also consider whether they have cognitively plausible ambiguity structure.     

Exploratory study of mindfulness in modern-day sport psychology consulting relationships

This study explored sport psychology practitioners’ mindfulness in relation to the quality of consulting relationships and value within contemporary practice. A total of 34 sport psychology practitioners from South Africa (n = 22, females = 41%) and the United Kingdom (n = 12, females = 25%) (Private practice = 68%; 15+ years’ experience = 44%) participated in this study. Data were gathered, using the Five Factor Mindfulness Questionnaire (FFMQ-SF), Working Alliance Inventory Short-Revised Form (WAI-SRT), and interviews. Spearman’s rank order correlation and thematic content analyses were employed to analyse the data. Higher levels of practitioners’ mindfulness were associated with superior consulting relationships. Specifically, positive correlations were observed between mindfulness attributes of observing, describing, non-reacting ability, and quality of the therapeutic bond, agreement on goals, and agreement on goals and tasks with clients respectively. Thematic analysis suggested mindfulness to facilitate accurate attending to present-moment experiences, and empathetic understanding of clients’ unique needs.     

Is feminine masochism a concept worth reviving?

In this paper the author explores situations when a patient seems to regress masochistically from a progressive development. She is concerned with moments when the patient's struggle towards oedipal relating may be easily confused with a situation where the patient is only caught up with pre-oedipal conflicts and as a result the analyst might interpret in a way that pushes the patient backwards. The author revisits and focuses upon Freud 's classical concept of 'feminine masochism' as a particularly illuminating example of an element in the clinical picture which may alert us to this situation. She aims to show that, viewed as part of a developmental model, the concept of feminine masochism can offer the analyst a signal that the patient is fleeing from sexual oedipal conflicts. Reviving the concept may therefore be clinically useful in highlighting the regression from oedipal anxiety in situations where this might otherwise be missed .     

Estimating an Effect Size in One-Way Multivariate Analysis of Variance (MANOVA)

When two or more univariate population means are compared, the proportion of variation in the dependent variable accounted for by population group membership is eta-squared. This effect size can be generalized by using multivariate measures of association, based on the multivariate analysis of variance (MANOVA) statistics, to establish whether population mean vectors are practically significant different. In the case of random samples from populations, approximate and asymptotically unbiased estimators of these effect sizes as well as confidence intervals are suggested under the assumptions of equal covariance matrices and normality. Statistical properties of these estimators are studied by Monte Carlo simulations. The accuracy and spread of the proposed effect sizes are also compared with those of other multivariate measures of association in Monte Carlo simulations. The proposed effect sizes are also illustrated by applying them in an empirical example using college admission test data obtained from StatSoft (2007) StatSoft, Inc. 2007. STATISTICA (data analysis software system), Version 8.0 www.statsoft.com [Google Scholar].     

Changes in Behaviour and Body Weight Following a Single or Double Social Defeat in Rats

In a series of experiments, the consequences of a single and double social conflict on various behaviours and body weight in rats were studied. Animals were subjected to social defeat by placing them into the territory of an aggressive male conspecific for one hour, either once, or twice at the same time on two consecutive days. To assess the consequences of social defeat, three experiments were performed with independent groups of rats. In the first experiment, an open field test was performed two days after the last conflict. Locomotor activity was strongly reduced after social defeat. There were no differences between the single and double defeat group. To assess the effects of social defeat on subsequent social behaviour, a second experiment was performed in which experimental animals were confronted with an unfamiliar non-aggressive rat two days after a single or double conflict. Social defeat resulted in a reduction of social contact with the unfamiliar conspecific. There was no difference between the single and double conflict group. In the third experiment, the effects of social conflict on food intake, body weight and saccharine preference were measured. Food intake was not affected after a single conflict, but in the double conflict group food intake was decreased for several days. Body weight gain was decreased after both single and double social defeat. The decrease was stronger in the double conflict group. Water intake and saccharine preference were not significantly affected. This study revealed that social defeat in rats causes pronounced changes in various behaviours and body weight. Different aspects of behaviour are differentially affected by defeat with respect to the magnitude and time course of the changes induced. Moreover, different behavioural parameters are differentially sensitive to repetition of the stressor.     

Psychological skills and mindfulness training effects on the psychological wellbeing of undergraduate music students: An exploratory study

This study explored the efficacy of psychological skills and mindfulness training intervention on the psychological wellbeing of undergraduate music students. Participants were undergraduate music students (n = 36) from the Department of Music at a South African university, 21 of whom were elected to take the psychological skills and mindfulness training intervention. Data on their self-reported psychological wellbeing, psychological skills, mindfulness and performance anxiety levels were collected pre-and post-intervention. The analysis applied non-parametric procedures to determine changes in students’ psychological wellbeing after the seven-week intervention programme. Findings suggest improvements in psychological wellbeing, psychological skills, mindfulness and performance anxiety with training. Psychological skills and mindfulness training may have benefits to the psychological wellbeing of music students.     

Cell phone usage relational regulation strategies of older South Africans

This study explored older South Africans’ relational regulation strategies in using their cell phones to address their social goals and psychosocial needs. Nineteen older South Africans (17 female; 2 male), aged 60 and older, who had access to a cell phone and represented different socio-economic levels based on the Living Standard Measurement (LSM) scale, participated in the Mmogo-method®, a visual data-collection method. Thematic and visual analysis revealed that the subjective assessment of cell phone users’ competence determined the type of relational regulation strategy they apply. Findings revealed older persons to adopt three relational regulation strategies in their cell phone use: (i) postponement of need satisfaction; (ii) asking directly; or (iii) negotiating for needs satisfaction. The findings might facilitate programmes that promote cell phone use in older persons to address their social needs and promote healthy intergenerational interactions.