On the degree of attention and capacity limitation in tactile processing

Two conditions were used to evaluate Os’ ability to detect near-threshold vibrotactile stimuli. In both conditions, a signal was presented at one of three skin loci, the O stating which locus received the stimulus. In the simultaneous condition, there was a single observation interval during which a signal occurred at one of the three loci. In the sequential condition, there were three observation intervals presented successively at 800-msec intervals, with a signal presented at one of the three loci during one of the three observation intervals. Each observation interval was associated with a particular locus. Theories postulating attentional control and limitations of capacity during this type of vibrotactile information processing predict performance to be inferior in the simultaneous condition, since that condition requires sharing of attention among the three possible sources of tactile stimulation. The data showed performance to be identical in the two conditions. This result not only disconfirms the single-channel model proposed by Franzen, Markowitz, and Swets (1970), but also argues for an unlimited-capacity nonattention model of tactile perceptual processing. The results are in accord with similar findings for visual processing by Shiffrin and Gardner (1972).     

EAS temperaments during the last half of the life span: twins reared apart and twins reared together

In this first behavioral genetic study of personality in the last half of the life span, results are reported using the powerful adoption/twin design that compares identical and fraternal twins reared apart and identical and fraternal twins reared together. Traits studied were the EAS temperaments (emotionality, activity level, and sociability), traits that show substantial genetic influence in childhood. It was hypothesized that the EAS traits would also show significant genetic influence later in life and that most of the environmental variation would be nonshared--that is, twins reared together would show no greater resemblance for the EAS traits than twins reared apart. Both hypotheses are supported.     

Physical health 25 years later: the predictive ability of neuroticism

OBJECTIVE: Neuroticism, a personality trait related to distress and emotional stability, is often correlated with physical symptoms and disease presence. Theorists have posited that chronic emotional instability creates physiological changes detrimental to health, yet most findings are based on cross-sectional analyses. The objective of the current study was to examine neuroticism assessed in 1973 and the likelihood of reporting physical conditions 25 years later. DESIGN: Participants included 21676 adult twins (n = 8143 intact twin pairs) ranging from 15 to 47 years old in 1973 who were assessed again between 1998 and 2002. MAIN OUTCOME MEASURES: Thirteen physical conditions, including chronic fatigue syndrome, ulcers, and coronary heart disease, were selected based on their prior theoretical and empirical links to personality traits. RESULTS: Results indicate that the likelihood of having a physical condition is related to higher levels of prior neuroticism, with some associations attenuated when controlling for familial similarity. CONCLUSION: Familial influences are most pronounced for conditions most related to systemic pain, suggesting genetic pathways between neuroticism and these pain experiences.     

Professional Basketball's Unsportsmanlike Fouls in the Eyes of the Beholders

A series of three experiments, based on the method of Functional Measurement, has explored the importance assigned by professional basketball players to relevant dispositions of defense and offense players, as determinants of unsportsmanlike fouls. The 106 participants were leading male players in the premier basketball league in Israel. Experiment 1 was based on a 16 (2⁴)‐cell model. In an individual meeting, each participant estimated the likelihood that a defense player would commit an unsportsmanlike foul on an offense player. In each of the 16 to‐be‐judged incidents, specific information on a specific combination of aggressiveness and susceptibility to victimisation of two imaginary protagonists in an offense–defense on‐the‐court incident was given to the participant. Experiment 2 was a replication of Experiment 1. There, however, names of 16 well‐known players were mentioned, the aggressiveness and susceptibility to victimisation of each fitting the model requirements. In Experiment 3, a partial replication of Experiment 2, likelihood estimations were made from two perspectives—potential perpetrator and potential victim. Overall, meaningful importance was assigned especially to the dispositions of the perpetrator, not the victim. The findings are conceived as reflections of players' cognitive schemata of on‐the‐court violence. Basée sur la méthode de la mesure fonctionnelle, une série de 3 expérimentations a exploré l’importance que des joueurs de basket professionnels attribuent aux dispositions de joueurs attaquant ou défenseur à commettre des fautes anti sportives. Les 106 sujets sont des joueurs de sexe masculin de la ligue 1 de basket israélienne. L'expérience 1 est basée sur un modèle à 16 (2⁴) cases. Lors de passation individuelle, chaque participant estime la probabilité qu'un joueur arrière commette une faute anti sportive sur un joueur avant. Pour chacun des 16 incidents à juger, une information spécifique a été donnée aux participants. Il s'agissait d'une combinaison particulière de l'agressivité et de la propension à la victimisation des deux protagonistes imaginaires dans une situation d'incident soit offensif soit défensif sur le terrain. L'expérimentation 2 est une réplique de la première. Cependant, les noms de 16 joueurs connus sont mentionnés, l'agressivité et la propension à la victimisation étaient appropriées aux exigences du modèle. Dans l'expérience 3, réplique partielle de la deuxième, la probabilité des estimations a été faite selon deux perspectives: auteur potentiel et victime potentielle. Globalement, une importance significative a été assignée aux dispositions de l'auteur et non de la victime. Les résultats sont conçus comme reflétant le schéma cognitif des joueurs lors de violence sur le terrain.     

Prospective writing: Randomized controlled trial of an intervention for facilitating growth after adversity

Little is known about how posttraumatic growth (PTG) can be fostered and controversy surrounds how it is best measured. We designed and tested an intervention, prospective writing, to facilitate PTG by encouraging people to explore new possibilities after adversity. Adults (N = 188) with recent adverse experiences were randomly assigned to do prospective writing, factual writing, or no writing weekly for one month. PTG was assessed with both retrospective and current-standing measures. Hierarchical linear modeling and response profile analysis were used to assess the intervention’s impact, and latent growth curve modeling was used to test mediation. Prospective writing participants showed the greatest gains in PTG as assessed by the current-standing measure, but did not reliably show greater retrospective PTG than controls. Although large effect sizes for the mediation paths suggested that engagement with new possibilities may be a plausible mechanism, this result fell short of statistical significance. Prospection-based interventions merit further investigation.     

Displaced aggression is alive and well: a meta-analytic review

Content analysis of 122 social psychology textbooks confirmed that displaced aggression received a surge of attention immediately following J. Dollard, L. W. Doob, N. E. Miller, O. H. Mowrer, and R. R. Sears (1939), but subsequent interest sharply declined. Contemporary texts give it little attention. By contrast, meta-analysis of the experimental literature confirms that it is a robust effect (mean effect size = +0.54). Additionally, moderator analyses showed that: (a) The more negative the setting in which the participant and target interacted, the greater the magnitude of displaced aggression; (b) in accord with N. E. Miller's (1948) stimulus generalization principle, the more similar the provocateur and target, the more displaced aggression; and (c) consistent with the contrast effect (L. Berkowitz & D. A. Knurek, 1969), the intensity of initial provocation is inversely related to the magnitude of displaced aggression.     

Perceived relative importance of psychological and physical factors in successful athletic performance

Ratings of the perceived relative importance of psychological and physical factors for successful athletic performance were obtained from 29 men and 53 women in sports of track, swimming, soccer, volleyball, basketball, gymnastics, baseball or softball, tennis, diving, and golf, by level of competition (high school, college, and professional), and sex of athlete. The over-all rating of the relative importance of psychological factors was 39%. Significant differences in the ratings of the relative importance of psychological factors were found for sport, level, sex, sport x level, and level x sex. Ratings of the relative importance of psychological factors for successful performance in various sports increased in the order listed above. The significant effect for level and interaction of sport x level were accounted for primarily by the higher ratings given to professional golf. The significant effect of sex and the interaction of sex x level were attributable to higher ratings of the importance of psychological variables for high school women athletes as compared to high school men athletes.