Within- and between-nervous-system inhibition of return: Observation is as good as performance

Inhibition of return (IOR) has been shown to occur when an individual returns to a target location (within-person IOR) and when an individual moves to a location just engaged by another individual (between-person IOR). Although within- and between-person IOR likely result from the same inhibitory mechanisms, different processes must activate these mechanisms following the performance and observation of action. Consistent with the suggestion that the mirror neuron system may be responsible for activating the inhibitory mechanisms behind IOR on observation trials, between-person IOR was only detected under restricted viewing conditions known to activate mirror neurons. These results indicate that mirror neuron system may be involved in both higher-order and automatic cognitive behavior.     

Well…ah…: Hesitations and Hedges as an Influence on Jurors' Decisions1

Hispanic jurors' verdicts and whether these decisions were related to jurors' judgments of the credibility of the witness were the focus of this experiment. A prosecution witness testified in English or in Spanish with interpretation in English. Witnesses' speaking style systematically included hedges and hesitations or did not. Guilty verdicts were independent of language of testimony. Within Spanish‐interpreted conditions, jurors convicted the defendant 47% of the time in the absence of hedges and hesitations. When he hedged and hesitated, they convicted 34% of the time. This effect was complicated by a reliable Witness Hesitation × Juror Language Dominance interaction. These results are interpreted in the context of the courtroom impact of non‐English‐speaking witnesses and the impact of interpretation.     

Cellphone addiction explains how cellphones impair learning for lecture materials

Students' cellphone use has been related to poorer learning, possibly due to greater distraction. This study investigated whether cellphone‐related anxiety, addiction, and disconnection were related to distraction and learning as well as how practical educational policies could minimize negative effects. Participants (N = 218) watched a video lecture and were divided into two groups: cellphone‐allowed for academic use (Use‐Cellphone Group) and no cellphone instruction (No‐Instruction Group). During the lecture, participants received several anonymous text messages and overt distracted was measured. Learning was assessed via a test following the video. Our findings showed that participants in the Use‐Cellphone Group experienced a greater degree of distraction and worse test performance than those in the No‐Instruction Group. Only cellphone addiction and distractedness played key roles in impacting the effects of condition on test performance. Thus, allowing cellphones in class may exacerbate existing cellphone addiction behaviors and impair learning.     

Model Conditioned Data Elasticity in Path Analysis: Assessing the “Confoundability” of Model/Data Characteristics

Much research has been directed at the validity of fit indices in Path Analysis and Structural Equation Modeling (e.g., Browne, MacCallum, Kim, Andersen, &; Glaser, 2002 Browne, M.W., MacCallum, R.C., Kim, C.T., Andersen, B.L., &; Glaser, R. (2002). When fit indices and residuals are incompatible. Psychological Methods, 7, 403–421.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Heene, Hilbert, Draxler, Ziegler, &; Bühner, 2011 Heene, M., Hilbert, S., Draxler, C., Ziegler, M., &; Bühner, M. (2011). Masking misfit in confirmatory factor analysis by increasing unique variances: A cautionary note on the usefulness of cutoff values of fit indices. Psychological Methods, 16(3), 319–336.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Hu &; Bentler, 1999 Hu, L., &; Bentler, P. (1999). Cutoff criteria for fit indexes in covariance structure analysis: Conventional criteria versus new alternatives. Structural Equation Modeling, J., 6(1), 1–55.[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]; Marsh, Hau, &; Wen, 2004 Marsh, H.W., Hau, K.T., &; Wen, Z. (2004). In search of golden rules: Comment on hypothesis-testing approaches to setting cutoff values for fit indexes and dangers in overgeneralizing Hu and Bentler’s (1999) findings. Structural Equation Modeling, 11(3), 320–341.[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]). Recent developments (e.g., Preacher, 2006 Preacher, K.J. (2006). Quantifying parsimony in structural equation modeling. Multivariate Behavioral Research, 41(3), 227–259.[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]; Roberts &; Pashler, 2000 Roberts, S., &; Pashler, H. (2000). How persuasive is a good fit? A comment on theory testing. Psychological Review, 107(2), 358–367.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar], 2002 Roberts, S., &; Pashler, H. (2002). Reply to Rodgers and Rowe (2002). Psychological Review, 109(3), 605–607.[Crossref] , [Google Scholar]) have encouraged researchers to investigate other criteria for comparing models, including model complexity. What has not been investigated is the inherent ability of a particular data set to be fitted with a constrained set of randomly generated linear models, which we call Model Conditioned Data Elasticity (DE). In this article we show how DE can be compared with the problem of equivalent models and a more general problem of the “confoundability” of data/model combinations (see MacCallum, Wegener, Uchino, &; Fabrigar, 1993 MacCallum, R.C., Wegener, D.T., Uchino, B.N., &; Fabrigar, L.R. (1993). The problem of equivalent models in applications of covariance structure analysis. Psychological Bulletin, 114(1), 185–199.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Using the DE package in R, we show how DE can be assessed through automated computer searches. Finally, we discuss how DE fits within the controversy surrounding the use of fit statistics.     

Cultural variations in the sexual marketplace: gender equality correlates with more sexual activity

Sexual economics theory assumes that heterosexual communities can be analyzed as marketplaces in which men offer women resources such as love, respect, money, and commitment in exchange for sex. In response to economic, political, and other disadvantages, women collectively restrict their sexuality to maintain a low supply relative to male demand, thereby ensuring a high price. Hence, we tested the hypothesis that sexual norms and practices would be more restrictive in countries marked by gender inequality than in countries where the genders were more equal. An international online sex survey (N>317,000) yielded four measures of sexual activity, and 37 nations' means on all four measures were correlated with independent (World Economic Forum) ratings of gender equality. Consistent with predictions, relatively high gender equality was associated with more casual sex, more sex partners per capita, younger ages for first sex, and greater tolerance/approval of premarital sex.     

Mutuality: Clinical and Metapsychological Potentials of a Failed Experiment

Ferenczi's experiments with mutual analysis are often dismissed, without acknowledging the results obtained from them and his own cautionary remarks about their limits. Though ultimately failed, Ferenczi's experiments with mutual analysis were a source of clinical and metapsychological knowledge, despite the fact that he was unable to elaborate them in his lifetime. In this paper I connect mutuality to the development of the psyche, especially to the constitutive core of the intrapsychic. To understand the latter, it is necessary to take into account, among others, issues such as the common attribute, the mutual flux between the unconsciouses, the dialogue of unconsciouses, the maternal profundity, the primal relationship with the mother, and, above all, the primal unity between mother and child, which are fundamental for the emergence and development of the primary psychic forces. Incidences of rupture, distortion of the core of mutuality in the psychic life, its loss and disadjustment, by means of external traumatizing forces, and some clinical implications are described.     

A significance test for multisample sphericity

The paper obtains a maximum likelihood criterion test for multisample sphericity. The test contains Mauchly's sphericity test as a special case.I would like to thank Professor R. E. Bargmann for his most valuable help.