Semantic priming effects from single words in a lexical decision task

The present research examines the semantic priming effects of a centrally presented single prime word to which participants were instructed to either "attend and remember" or "ignore". The prime word was followed by a central probe target on which the participants made a lexical decision task. The main variables manipulated across experiments were prime duration (50 or 100 ms), the presence or absence of a mask following the prime, and the presence (or absence) and type of distractor stimulus (random set of consonants or pseudowords) on the probe display. There was a consistent interaction between the instructions and the semantic priming effects. Relative to the "attend and remember" instruction, an "ignore" instruction produced reduced positive priming from single primes presented for 100 ms, irrespective of the presence or absence of a prime mask, and regardless of whether the probe target was presented with or without distractors. Additionally, reliable negative priming was found from ignored primes presented for briefer durations (50 ms) and immediately followed by a mask. Methodological and theoretical implications of the present findings for the extant negative priming literature are discussed.     

Effects of live exposure on symptoms of posttraumatic stress disorder: the role of reduced behavioral avoidance in improvement

Although the effectiveness of cognitive-behavioral treatment in posttraumatic stress disorder (PTSD) is well established, few studies examined its effects on individual PTSD symptoms and possible mechanisms of improvement in symptoms. In a previous randomized controlled study [Ba?og lu, M., Salciog lu, E., Livanou, M., Kalender, D., & Acar, G. (2005). Single-session behavioral treatment of earthquake-related posttraumatic stress disorder: A randomized waitlist controlled trial. Journal of Traumatic Stress, 18, 1-11] a single session of behavioral treatment involving self-exposure instructions was highly effective in reducing earthquake-related PTSD. In the present study we examined the effects of treatment on each PTSD symptom and which symptoms improved early in treatment. Because the intervention focused solely on behavioral avoidance, we hypothesized that avoidance would be the first symptom to change and that reduction in avoidance would generalize to all other symptoms. The results showed significant between-groups treatment effect on only behavioral avoidance early in treatment (week 6). At 6 months post-treatment recovery rates ranged from 60% to 89% for 15 PTSD symptoms, including the numbing symptoms. Lack of improvement in avoidance was associated with lack of improvement in 12 symptoms. The critical process in recovery thus appeared to be increased sense of control associated with reduction in avoidance. These findings imply that live exposure to fear cues designed to enhance sense of control might be sufficient for recovery from PTSD.     

Lexical restructuring in the absence of literacy

Vocabulary growth was suggested to prompt the implementation of increasingly finer-grained lexical representations of spoken words in children (e.g., [Metsala, J. L., & Walley, A. C. (1998). Spoken vocabulary growth and the segmental restructuring of lexical representations: precursors to phonemic awareness and early reading ability. In J. L. Metsala & L. C. Ehri (Eds.), Word recognition in beginning literacy (pp. 89-120). Hillsdale, NJ: Erlbaum.]). Although literacy was not explicitly mentioned in this lexical restructuring hypothesis, the process of learning to read and spell might also have a significant impact on the specification of lexical representations (e.g., [Carroll, J. M., & Snowling, M. J. (2001). The effects of global similarity between stimuli on children’s judgments of rime and alliteration. Applied Psycholinguistics, 22, 327-342.]; [Goswami, U. (2000). Phonological representations, reading development and dyslexia: Towards a cross-linguistic theoretical framework. Dyslexia, 6, 133-151.]). This is what we checked in the present study. We manipulated word frequency and neighborhood density in a gating task (Experiment 1) and a word-identification-in-noise task (Experiment 2) presented to Portuguese literate and illiterate adults. Ex-illiterates were also tested in Experiment 2 in order to disentangle the effects of vocabulary size and literacy. There was an interaction between word frequency and neighborhood density, which was similar in the three groups. These did not differ even for the words that are supposed to undergo lexical restructuring the latest (low frequency words from sparse neighborhoods). Thus, segmental lexical representations seem to develop independently of literacy. While segmental restructuring is not affected by literacy, it constrains the development of phoneme awareness as shown by the fact that, in Experiment 3, neighborhood density modulated the phoneme deletion performance of both illiterates and ex-illiterates.     

Work-family conflict: experiences and health implications among immigrant Latinos

Work-family conflict research has focused almost exclusively on professional, White adults. The goal of this article was to expand the understanding of culture and industry in shaping experiences and consequences of work-family conflict. Using in-depth interview data (n = 26) and structured survey data (n = 200) from immigrant Latinos employed in the poultry processing industry, the authors evaluated predictions drawn from emerging models emphasizing the influence of cultural characteristics such as collectivism and gender ideology on work-family conflict. Results indicated that immigrant Latinos in poultry processing experienced infrequent work-to-family conflict; both the level and the antecedents of work-to-family conflict differed by gender, with physical demands contributing to greater conflict for women but not men. In addition, there was little evidence that work-family conflict was associated with health in this population. These results demonstrate how traditional models of work-family conflict need to be modified to reflect the needs and circumstances of diverse workers in the new global economy.     

Managerial modes of influence and counterproductivity in organizations: a longitudinal business-unit-level investigation

The authors studied the effect of 3 modes of managerial influence (managerial oversight, ethical leadership, and abusive supervision) on counterproductivity, which was conceptualized as a unit-level outcome that reflects the existence of a variety of intentional and unintentional harmful employee behaviors in the unit. Counterproductivity was represented by an objective measure of food loss in a longitudinal study of 265 restaurants. After prior food loss and alternative explanations (e.g., turnover, training, neighborhood income) were controlled for, results indicated that managerial oversight and abusive supervision significantly influenced counterproductivity in the following periods, whereas ethical leadership did not. Counterproductivity was also found to be negatively related to both restaurant profitability and customer satisfaction in the same period and to mediate indirect relationships between managerial influences and distal unit outcomes.     

The role of attention in the formation of auditory streams

There is controversy over whether stream segregation is an attention-dependent process. Part of the argument is related to the initial formation of auditory streams. It has been suggested that attention is needed only to form the streams, but not to maintain them once they have been segregated. The question of whether covert attention at the beginning of a to-be-ignored set of sounds will be enough to initiate the segregation process remains open. Here, we investigate this question by (1) using a methodology that does not require the participant to make an overt response to assess how the unattended sounds are organized and (2) structuring the test sound sequence to account for the covert attention explanation. The results of four experiments provide evidence to support the view that attention is not always required for the formation of auditory streams.     

Perceptual visual skills in young highly skilled basketball players

A simple method was designed to evaluate visual abilities such as disance visual acuity, binocular horizontal visual field, simple and choice visual reaction times, and stereoscopic vision in skilled 11- to 13-yr.-old basketball players participating in a 15-day summer training camp. On a test battery, visual abilities were monitored in 473 players of the Spanish Basketball Federation over a 5-yr. period. The players showed outstanding scores on distance visual acuity and stereoscopic vision, and good visual reaction times and horizontal visual fields. When scores were compared by sex and age, significant differences on certain visual measures were observed. Many layers showed crossed eye-hand dominance. Visual screening programs may help promote visual health among junior basketball players and could be used for performance training.     

Futile debate on assessment of field dependence-independence

A long-standing debate on assessment has troubled research on field dependence-independence. The main arguments and a recent measurement proposal by Riding, et al., are revised to illustrate the futility of this debate and to defend the strength of the cognitive style dimension.     

Effect of manipulating positive and negative feedback on goal orientations, perceived motivational climate, satisfaction, task choice, perception of ability, and attitude toward physical education lessons

This study examined the effect of different types of feedback on goal orientation, perception of motivational climate, satisfaction, and boredom in physical education (PE) classes, pupils' preferences for challenging versus easy tasks, pupils' attitudes towards PE lessons, and perception of gymnastic ability. 95 subjects in three treatment conditions (positive feedback, negative feedback, and both feedback types) participated in 14 lessons and completed pre- and postintervention measures. Results showed that subjects in the positive feedback group had significantly higher scores on learning-oriented motivational climate and enjoyment than the subjects of the negative feedback group. The negative feedback group reported higher scores on performance-oriented motivational climate than the positive feedback group. Results also showed that subjects in the group receiving both types of feedback had lower scores on learning-oriented motivational climate, higher scores on enjoyment than the negative feedback group, and lower scores on boredom than the positive feedback group. The effects of feedback on physical education students' motivation are discussed.     

Precompetitive anxiety and self-confidence in athletes with disability

This study examined the precompetition temporal patterning of competitive anxiety components in 42 athletes with disability who participated at the national level and at the national trials for the Paralympic Games in a variety of sports. All subjects completed a modified version of the Competitive State Anxiety Inventory-2 which measures intensity and direction of the competitive anxiety response on three occasions before competition (1 wk., 2 hr., and 20 min.). Analysis suggested that for cognitive and somatic dimensions athletes with disabilities show a similar precompetition anxiety response to athletes without disability. However, there appear to be some differences, particularly in the intensity of self-confidence, as athletes with disability reported a reduction of self-confidence just prior to competition.