The French Lexicon Project: Lexical decision data for 38,840 French words and 38,840 pseudowords

The French Lexicon Project involved the collection of lexical decision data for 38,840 French words and the same number of nonwords. It was directly inspired by the English Lexicon Project (Balota et al., 2007) and produced very comparable frequency and word length effects. The present article describes the methods used to collect the data, reports analyses on the word frequency and the word length effects, and describes the Excel files that make the data freely available for research purposes. The word and pseudoword data from this article may be downloaded from http://brm.psychonomic-journals.org/content/supplemental.     

Suicidal Ideation and Associated Factors Among School-Going Adolescents in Harare,Zimbabwe

This study determined the prevalence and associated factors of suicidal ideation among school-going adolescents in Harare, Zimbabwe. Data on 1970 respondents were obtained from a cross sectional study of the Global School-based health survey. Respondents were selected using a two-stage probability sampling technique. The prevalence of suicidal ideation was 21.6%. Males were less likely to have suicidal ideation than females (OR=0.70; 95% CI 0.54,0.91). Worrying (OR=1.81; 95% CI 1.29,2.56), feeling of loneliness (OR=2.04; 95% CI 1.43,2.90), cigarette smoking (OR=1.87; 95% CI 1.11, 3.16), and drinking alcohol (OR=1.74; 95% CI 1.17, 2.60) were associated with suicidal ideation. Public health programs designed to control cigarette smoking and alcohol use may also impact positively on suicidal ideation.     

Combatting corruption with public deliberation

Building on Seumas Miller's concept of corruption leads me to conclude that the question of disposition is central to the concept of corruption, which prompts me to consider punishment theories with regard to deterring dispositions to corruption. However, problems with punishment as a stand-alone approach lead me to consider institutional reform recommendations. Although institutional reforms have the weakness of merely engaging corrupt disposition in a hide-and-seek game, I seek to reconcile institutional approaches and moral individualism by suggesting that the former is intended to aid the latter, in the sense that resisting corruption is a question of cost, and the onus is to determine how to reduce this cost. In this regard, prevailing proposals are inept without an enabling environment: public deliberation (comprising publicity and deliberation) is a necessary (though not sufficient) condition for combating corruption, because it (1) compels reason to function at its best, (2) demands rational accountability, and therefore account-giving, (3) increases ‘common-good’ thinking, (4) facilitates the recruitment of responsible institutional role-occupants, and (5) is a self-correcting instrument.     

Africa and the prospects of deliberative democracy

Preoccupation with multiparty aggregative democracy in Africa has produced superficial forms of political/electoral choice-making by subjects that deepen pre-existing ethnic and primordial cleavages. This is because the principles of the multiparty system presuppose that decision-making through voting should be the result of a mere aggregation of pre-existing, fixed preferences. To this kind of decision-making, I propose deliberative democracy as a supplementary approach. My reason is that deliberation, beyond mere voting, should be central to decision- making and that, for a decision to be legitimate, it must be preceded by deliberation, not merely the aggregation of pre-existing fixed preferences. I agree with arguments that when adequate justifications are made for claims/demands/conclusions, deliber- ation has the potential to have a salutary effect on people's opinions, transform/ evolve preferences, better inform judgments/voting, lead to increasingly ‘common good’ decisions, have moral educative power, place more burden of account-giving on public officers, and furnish subjects/losers/outvoted with justifications for collec- tively binding decisions. I argue that a deliberative turn in politics in Africa will have a mitigating effect on tribal and money politics.     

Beat gestures modulate auditory integration in speech perception

Spontaneous beat gestures are an integral part of the paralinguistic context during face-to-face conversations. Here we investigated the time course of beat-speech integration in speech perception by measuring ERPs evoked by words pronounced with or without an accompanying beat gesture, while participants watched a spoken discourse. Words accompanied by beats elicited a positive shift in ERPs at an early sensory stage (before 100 ms) and at a later time window coinciding with the auditory component P2. The same word tokens produced no ERP differences when participants listened to the discourse without view of the speaker. We conclude that beat gestures are integrated with speech early on in time and modulate sensory/phonological levels of processing. The present results support the possible role of beats as a highlighter, helping the listener to direct the focus of attention to important information and modulate the parsing of the speech stream.     

Exemplar similarity and rule application

We report four experiments examining effects of instance similarity on the application of simple explicit rules. We found effects of similarity to illustrative exemplars in error patterns and reaction times. These effects arose even though participants were given perfectly predictive rules, the similarity manipulation depended entirely on rule-irrelevant features, and attention to exemplar similarity was detrimental to task performance. Comparison of results across studies suggests that the effects are mandatory, non-strategic and not subject to conscious control, and as a result, should be pervasive throughout categorization.     

Judging familiarity and emotion from very brief musical excerpts

In the present study, the gating paradigm was used to measure how much perceptual information that was extracted from musical excerpts needs to be heard to provide judgments of familiarity and of emotionality. Nonmusicians heard segments of increasing duration (250, 500, 1,000 msec, etc.). The stimuli were segments from familiar and unfamiliar musical excerpts in Experiment 1 and from very moving and emotionally neutral musical excerpts in Experiment 2. Participants judged how familiar (Experiment 1) or how moving (Experiment 2) the excerpt was to them. Results show that a feeling of familiarity can be triggered by 500-msec segments, and that the distinction between moving and neutral can be made for 250-msec segments. This finding extends the observation of fast-acting cognitive and emotional processes from face and voice perception to music perception.     

Personality,Childhood Experience,and Political Ideology

This article studies the relationship between the “big five” personality traits and political ideology in a large U.S. representative sample (N = 14,672). In line with research in political psychology, “openness to experience” is found to predict liberal ideology, and “conscientiousness” predicts conservative ideology. The availability of family clusters in the data is leveraged to show that these results are robust to a sibling fixed‐effects specification. The way that personality might interact with environmental influences in the development of ideology is also explored. A variety of childhood experiences are studied that may have a differential effect on political ideology based on a respondent's personality profile. Childhood trauma is found to interact with “openness” in predicting ideology, and this complex relationship is investigated using mediation analysis. These findings provide new evidence for the idea that differences in political ideology are deeply intertwined with variation in the nature and nurture of individual personalities.     

Word knowledge in the crowd: Measuring vocabulary size and word prevalence in a massive online experiment

We use the results of a large online experiment on word knowledge in Dutch to investigate variables influencing vocabulary size in a large population and to examine the effect of word prevalence—the percentage of a population knowing a word—as a measure of word occurrence. Nearly 300,000 participants were presented with about 70 word stimuli (selected from a list of 53,000 words) in an adapted lexical decision task. We identify age, education, and multilingualism as the most important factors influencing vocabulary size. The results suggest that the accumulation of vocabulary throughout life and in multiple languages mirrors the logarithmic growth of number of types with number of tokens observed in text corpora (Herdan's law). Moreover, the vocabulary that multilinguals acquire in related languages seems to increase their first language (L1) vocabulary size and outweighs the loss caused by decreased exposure to L1. In addition, we show that corpus word frequency and prevalence are complementary measures of word occurrence covering a broad range of language experiences. Prevalence is shown to be the strongest independent predictor of word processing times in the Dutch Lexicon Project, making it an important variable for psycholinguistic research.     

Neuroimaging of mental imagery: An introduction

Adaptive mechanisms to protect cognitive performance under stressors through compensation in energy investment have previously received much research attention. However, stressors have also often been found to substantially reduce both performance and investment. The mechanisms underlying this dual negative effect are still unclear. This study tested the hypothesis that stressors can immediately hamper performance, which in turn reduces energy investment in later phases. In an experiment (N=103), we compared control and stressor conditions (noise or time pressure), investigating the effects of stressors on performance and information-sampling investment (as behavioural measure of energy investment) in two phases of a judgement task. The results showed an instant negative effect of stressors on performance and a delayed negative effect on information-sampling investment. Furthermore, impaired initial performance predicted the decline in investment over time. Finally, the effects of stressors on investment decline were partially mediated through initial performance level. The present findings contribute to theories aiming to explain the relationship between hampered performance and motivational losses.