Temporal dynamics of the action-sentence compatibility effect

A number of recent studies have demonstrated variants of the action-sentence compatibility effect (ACE), wherein the execution of a motor response is facilitated by the comprehension of sentences that describe actions taking place in the same direction as the motor response (e.g., a sentence about action towards one's body facilitates the execution of an arm movement towards the body). This paper presents an experiment that explores how the timing of the motor response during the processing of sentences affects the magnitude of the ACE that is observed. The results show that the ACE occurs when the motor response is executed at an early point in the comprehension of the sentence, disappears for a time, and then reappears when the motor response is executed right before the end of the sentence. These data help to refine our understanding of the temporal dynamics involved in the activation and use of motor information during sentence comprehension.     

THE IDEA OF DEFENSE IN HISTORICAL AND CONTEMPORARY THINKING ABOUT JUST WAR

What is, or should be, the role of defense in thinking about the justification of use of armed force? Contemporary just war thinking prioritizes defense as the principal, and perhaps the only, just cause for resorting to armed force. By contrast, classic just war tradition, while recognizing defense as justification for use of force by private persons, did not reason from self‐defense to the justification of the use of force on behalf of the political community, but instead rendered the idea of just cause for resort to force in terms of the sovereign's responsibility to maintain justice, vindicating those who had suffered from injustice and punishing evildoers. This paper moves through three major stages in the historical development of just war thinking, first examining a critical phase in the formation of the classical idea of just cause as the responsibility to maintain justice, then discussing the shift, characteristic of the modern period, to an idea of sovereignty as connected to the state and the prioritization of defense of the state as just cause for use of force, and lastly showing how this conception of the priority of defense became part of the recovery of just war thinking in the latter part of the twentieth century. The paper concludes by noting recent changes in thought on international law that tend to emphasize justice at the expense of the right of self‐defense, suggesting that the roots of just war thinking imply the need for a similar rethinking of contemporary just war discourse.     

Error feedback and the acquisition of geographical representations

Three training conditions were compared in a task of learning locations of cities on a map: One in which participants could avoid errors by searching for the name of the correct city, and two others in which either immediate feedback after each response or delayed feedback after all responses had been made was given. Learners who received feedback only after placing all the cities on the map performed more poorly overall during training but outperformed the other two groups in both immediate and delayed tests. This advantage is interpreted as evidence of differential development of relational knowledge and application of cognitive effort across training conditions. Copyright © 2007 John Wiley & Sons, Ltd.     

Visual illusions with acute and obtuse angles: Configurational effects and observer strategies

In three experiments, it is demonstrated that the negative Poggendorff illusions that Restle (1969) and others have reported are a special case, that, in general, acute- and obtuse-angle effects are the same, that there are additional special cases which modulate the illusion, but only slightly, and that these special cases derive from particular configurations which impose other effects, including observer strategies, on the basic illusion. These additional effects do not bear necessarily upon the fundamental explanation of the illusion. The experiments also show that effects obtained with amputated illusory figures are not linearly additive. Recent experiments that have measured apparent oblique separation in the Poggendorff figure and have found large obtuse-angle but small, or negative, acute-angle effects are also discussed. It is argued that these experiments have not demonstrated that the two dependent variables-alignment and length judgments-are correlated, or that one error causes the other; and it is argued that uinaHolland’s theory of parallel attraction to explain the illusion is not tenable.     

The relationship between childhood sexual abuse and sexual health practices of homeless adolescents

This study explored the gender differences in sexual self-concept, personal resources for sexual health, safe sex behaviors, and risky sexual behaviors among homeless adolescents with and without histories of sexual abuse. Data for this secondary analysis were collected in 2003 to 2004 in the first phase of a larger repeated-measures sexual health intervention study; 371 homeless youth between 16 and 23 years of age (M = 19.26, SD = 1.83) were recruited from a street outreach center. The majority (64.6%) of participants were males. Self-report instruments were completed at the outreach center via audio computer-assisted self-interview (A-CASI) format. It was found that female participants were better off than males on numerous measures of sexual health behaviors and attitudes. Sexually abused participants had significantly less future time perspective (p = .05), fewer sexual self-care behaviors (p = .04), and less social support than nonabused participants (p = .01) and almost significantly more sexual risk-taking (p = .08). However, no significant differences were found between abused and nonabused participants on sexual self-concept, self-efficacy or intention to use condoms, safe sex behaviors, AIDS knowledge, assertive communication, or self-efficacy to perform testicular/ breast self-exams. Overall, participants who did not report a history of sexual abuse had significantly more sexual health resources and engaged in fewer sex-risk behaviors than those who reported having been abused. These differences have notable implications for screening adolescents for a history of sexual abuse. Adolescents who report sexual abuse should receive risk counseling and be screened regularly for the development of sexual risk behaviors.     

Moving from cognition to behavior: What the research says

In 1994, R. G. Lord and P. E. Levy proposed a variant of control theory that incorporated human information processing principles. The current article evaluates the empirical evidence for their propositions and updates the theory by considering contemporary research on information processing. Considerable support drawing from diverse literatures was found for propositions concerning the activation of goal-relevant information, the inhibition of goal-irrelevant information, and the consequences of goal completion. These effects were verified by meta-analytic analyses, which also supported the meaningfulness of such effects on the basis of their unstandardized magnitudes. The authors conclude by proposing new directions for this version of control theory by invoking recent theorizing on goal emergence and the importance of velocity and acceleration information for goal striving and by reviewing research in cognitive neuroscience.     

Survey return rates as a function of priority versus first-class mailing

Prior research indicates survey procedures that signal significance and individualized mailings have higher response rates. Thus, it was hypothesized that surveys delivered via Priority mail would result in higher return rates than surveys delivered via First-Class. 260 surveys were sent to individuals randomly selected from lists of licensed physical and behavioral healthcare providers in Alaska and New Mexico. Half of the selected individuals were assigned randomly to receive mailings using Priority mail, the other half received First-Class mailings. Return rate was 39% for First-Class and 35% for Priority. Z tests of proportion indicated no statistically significant differences between methods. Given increased costs with no resultant increase in response rate, sending surveys to potential participants via Priority mail does not appear warranted.     

The National Institutes of Health (NIH) State-Of-the-Science Conference on Preventing Violence and Related Health-Risking Social Behaviors in Adolescents — A Commentary

Although youth in the United States remain substantially more violent than adolescents and young adults in most industrial countries, the National Institutes of Health's (NIH) State-of-the-Science Conference on Preventing Violence and Related Health-Risking Social Behaviors in Adolescents identified many reasons for optimism about our capacity to develop effective prevention and intervention responses. The research is getting better and contrary to popular opinion we do know a lot about what does work. Future advances will depend upon our insistence on the use of effectiveness evidence and the development of a taxonomy which will facilitate cross disciplinary communication.