The Motor System Computes Well but Remembers Poorly

The psychological approach to human voluntary movements advocated by F. Mechsner (2004) can be aligned with the view that motor commands are generated afresh but are not retrieved from memory. This movement-generation hypothesis gains indirect support in the findings Mechsner reviewed and obtains more direct support from the results of studies of memory for movement and computational modeling of motor planning.     

The ‘Scandal’ of the Lubavitch Rebbe: Messianism as a Response to Failed Prophecy

In June 1994, the Lubavitch Rebbe, believed to be the Mosiach (the Messiah) died. Counter-intuitively, this failure of prophecy gave birth to an extreme messianic movement within the group, dividing it into two antagonistic factions (messianists and anti-messianists). This article examines the Beis Menachem, a messianic group whose members believe that the Rebbe is not dead; some even believe that he is God. We argue that this strong messianic response was predictable, given the influence of four factors that prior analyses suggest are important in determining whether a group will survive the failure of a significant prophecy: (1) the ways in which the prophetic milieu is prepared, (2) the nature and extent of the preparatory activities people engaged in, (3) the nature, speed, and thoroughness of the response of group leaders to a failed prophecy, and (4) the level of social support available for those who remain faithful to a prophecy. Emphasis in this study is given to the first and fourth factor; it is argued that the diachronic study of groups like the Lubavitch provides new insights into the ideological, organisational, and situational conditions that facilitate the successful management of dissonance and thus the persistence of unusual beliefs.     

Assessing Intellectual Development: Three Approaches, One Sequence

In this paper, I compare three developmental assessment systems, employed to score a set of 152 interviews of engineering students: the Perry Scoring System (W. G. Perry, 1970), the Hierarchical Complexity Scoring System (T. L. Dawson, 2004, 1/31/03), and the Lexical Abstraction Assessment System (LAAS; T. L. Dawson & M. Wilson, in press). Overall, the Hierarchical Complexity Scoring System and Perry Scoring System agree with one another within the parameters of interrater agreement commonly reported for either one of the systems, and the Perry system and the LAAS agree with one another about as well as the LAAS and the Hierarchical Complexity Scoring System, upon which the LAAS is based.     

Willingness to date across race: differences among gay and heterosexual men and women

Willingness to date members of other races was examined among 200 men with same-sex dating preference (n = 100) and opposite-sex dating preference (n = 100), and 200 women with same-sex dating preference (n = 100) and opposite-sex dating preference (n = 100) who were randomly selected from an Internet dating web site. Overall, results indicated a greater willingness among gay participants than heterosexual participants to date people of other races. A 2 (Sex) x 2 (Sexual Orientation) analysis of variance showed an interaction, with lesbian women more willing to date other races than gay men, while among heterosexual participants men were more willing than women to date other races. The role of mate selection theory, and the importance of the status afforded various races in U.S. society, were applied to interpret people's willingness to date other races.     

Age-related affective modulation of the startle eyeblink response: older adults startle most when viewing positive pictures

Previous studies reveal age by valence interactions in attention and memory, such that older adults focus relatively more on positive and relatively less on negative stimuli than younger adults. In the current study, eyeblink startle response was used to measure differences in emotional reactivity to images that were equally arousing to both age groups. Viewing positive and negative pictures from the International Affective Picture System had opposite effects on startle modulation for older and younger adults. Younger adults showed the typical startle blink pattern, with potentiated startle when viewing negative pictures compared to positive pictures. Older adults, on the other hand, showed the opposite pattern, with potentiated startle when viewing positive pictures compared to viewing negative and neutral pictures. Potential underlying mechanisms for this interaction are evaluated. This pattern suggests that, compared with younger adults, older adults are more likely to spontaneously suppress responses to negative stimuli and process positive stimuli more deeply.     

“Don't Tell Me,I Don't Want to Know”: Understanding People's Reluctance to Obtain Medical Diagnostic Information1

Prominent theories of health‐protective behavior predict increasing information seeking as a function of increasing disease severity, yet diagnostic screens for serious diseases are notoriously underutilized. We suggest that in addition to severity, disease treatability impacts people's willingness to submit to medical tests. In two studies, participants were relatively likely to seek a diagnostic test for a disease they believed to be serious and treatable (Study 1) and to avoid a test for a disease they believed to be serious but untreatable (Study 2). Implications for health‐behavior models and persuasive health communication are discussed.