Vibrotactile discrimination of musical timbre

Five experiments investigated the ability to discriminate between musical timbres based on vibrotactile stimulation alone. Participants made same/different judgments on pairs of complex waveforms presented sequentially to the back through voice coils embedded in a conforming chair. Discrimination between cello, piano, and trombone tones matched for F0, duration, and magnitude was above chance with white noise masking the sound output of the voice coils (Experiment 1), with additional masking to control for bone-conducted sound (Experiment 2), and among a group of deaf individuals (Experiment 4a). Hearing (Experiment 3) and deaf individuals (Experiment 4b) also successfully discriminated between dull and bright timbres varying only with regard to spectral centroid. We propose that, as with auditory discrimination of musical timbre, vibrotactile discrimination may involve the cortical integration of filtered output from frequency-tuned mechanoreceptors functioning as critical bands. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

New knowledge for old credences: Asymmetric information search about in-group and out-group members

Three experiments examined how people gather information on in-group and out-group members. Previous studies have revealed that category-based expectancies bias the hypothesis-testing process towards confirmation through the use of asymmetric-confirming questions (which are queries where the replies supporting the prior expectancies are more informative than those falsifying them). However, to date there is no empirical investigation of the use of such a question-asking strategy in an intergroup context. In the present studies, participants were asked to produce (Study 1) or to choose (Studies 2 and 3) questions in order to investigate the presence of various traits in an in-group or an out-group member. Traits were manipulated by valence and typicality. The results revealed that category-based expectancies do not always lead to asymmetric-confirming testing: whereas participants tended to ask questions that confirmed positive in-group and negative out-group stereotypical attributes, they used a more symmetric strategy when testing for the presence of negative in-group or positive out-group traits. Moreover, Study 3 also revealed a moderation effect of in-group identification. The findings point to the role played by motivational factors associated with preserving a positive social identity. Possible consequences of these hypothesis-testing processes in preserving a positive social identity for intergroup relations are discussed.     

Franz Brentano and Cornelio Fabro: A Forgotten Chapter of the Brentanian Reception

In celebration of the centenary of the Italian philosopher Cornelio Fabro’s birth (1911–1995), this paper investigates the essential theoretical traits that undergird the framework of Fabro’s 1941 texts, by comparing them with Franz Brentano’s (1838–1817) project of renewing Thomism through a new understanding of Aristotle. The secondary literature concerning the comparison of both these authors is almost nonexistent. Our goal is to clarify some of the central issues regarding the relation between Fabro and Brentano through direct textual analysis of unpublished letters exchanged between Fabro and Agostino Gemelli about Brentano and his pupil Carl Stumpf.     

Predictors of College Students' Levels of Knowledge and Concern about Nuclear War

There is a growing interest regarding college student attitudes, knowledge, and concern about the potential threat of nuclear war. The present study attempted to identify salient political, psychological, and educational variables that might account for differing levels of concern and knowledge about nuclear war among college students. The results of two multiple regression analyses indicated that a greater interest in international affairs, less trust in government, more exposure to sources of nuclear war information, and being female contributed to greater concern about nuclear war. Having more political knowledge in general, being male, being more a Democrat than Republican, and having a greater interest in international affairs contributed to more knowledge about nuclear war. The results are discussed in light of their implications for university education.     

Framing effects in judgment tasks with varying amounts of information

Subjects were asked to make evaluations in each of three tasks—a gambling task, a consumer judgment task, and a student evaluation task. Each task involved two important attributes, but information about one attribute was missing on some trials. Half of the subjects received a version of the task in which a key attribute was presented in positive terms (e.g., probability of winning a gamble) and half received a version in which that same attribute was presented in negative terms (e.g., probability of losing a gamble). Even though the information was objectively equivalent in the two versions of each task, there were two significant framing effects. (1) In all tasks, responses to two-attribute stimuli were more favorable in the positive condition than in the negative condition. (2) When the key attribute was missing, evaluations of one-attribute stimuli relative to evaluations of two-attribute stimuli were lower in the positive condition than in the negative condition. Results were discussed in terms of the constructs of prospect theory and information integration theory.     

The Dimensions of Stress Scale: Psychometric Properties1

Although cognitive appraisal, situational properties, and attributions are important parts of the stress process, few multidimensional measures are available to examine these constructs simultaneously. This paper investigates the properties of the Dimensions of Stress Scale (DSS). The DSS is a brief self-report questionnaire designed to assess appraisals of personal relevance (salience) and control; stressor properties (novelty, duration, and predictability); and self-attributions (causality). The items were derived theoretically, using the cognitive-phenomenological model of stress and the stress literature. Empirical support for the six dimensions (scales) was generated first on a sample of elderly individuals (n= 269) and then replicated on an independent sample of younger individuals (n= 162). In both investigations, the factor structure of five of the scales was shown to approximate a simple structure. Evidence of internal consistency and content validity was also provided. The scales’ construct validity was supported by their relationships with stressor type (e. g., physical health problems, relationships, work, finances, individuals with indeterminate Western Blots, and caregivers of patients with Alzheimer's disease), coping, and depressed mood. The DSS should be useful in examining stressful experiences.     

Age differences in implicit memory: More apparent than real

Elderly subjects and a group of young subjects identified fragmented picture sequences under conditions of focused attention. Two other groups of young subjects carried out this task under divided-attention conditions. Implicit memory, as measured by item-specific savings, was found in all groups, but this effect was smaller in the elderly group. The young subjects, but not elderly subjects, performed better on new items. The divided-attention conditions equated recall and recognition by the young and the elderly, but only the young subjects showed greater savings for recalled items. The elderly subjects’ reduced implicit memory therefore stemmed from their inability to facilitate implicit memory with explicit memory. A second experiment, involving only young subjects tested after delay, produced findings similar to those for the young divided-attention subjects. Implicit memory, as measured by savings in picture completion, does not show an age-related change when the role of explicit memory is considered. Age does, however, reduce skill learning.     

On the differential nature of implicit and explicit memory

In this article, we report two experiments that provide further evidence concerning the differential nature of implicit and explicit memory. In Experiment 1, subjects first undertook a sentenceverification task. While carrying out this task, half of the subjects were also required to carry out a secondary processing task involving tone monitoring. Twenty-four hours later, the subjects’ memory for target items in the sentence-verification task was tested explicitly by means of a recognition task and implicitly by examining the extent to which the items primed fragment completion. Recognition performance was significantly impaired by the imposition of secondary processing demands during the original learning phase. In contrast, fragment completion was completely unaffected by this additional processing, even though substantial priming was observed. In Experiment 2, we examined whether priming in fragment completion is influenced by the nature of repetition during initial learning. Subjects studied a list of target items that were each repeated twice. Halfthe items were repeatedimmediately (lag 0) and halfwere repeated after six intervening items (lag 6). Memory for the itemswas assessed by recognition and by priming in fragment completion. Recognition was affected by lag, with lag 6 items being recognized better than lag 0 items. However, although significant priming was obtained, the extent of this priming was uninfluenced by lag. These data indicate two additional dimensions along which implicit and explicit memory differ and, furthermore, they support recent conceptualizations of processing differences underlying these two forms of memory.     

A framework for the conceptualization,design, and strategic management of planned change systems

This article extends a framework for conceptualizing, designing, and managing planned change-systems. The framework argues that the adoption of social innovations is best facilitated when change organizations manage how target adopters perceive and enact the entire adoption experience. This process is accomplished by defining three critical components of the change-system and applying the principles of synergy to their design and management. Christine Moorman is an assistant professor of marketing at the Graduate School of Business, University of Wisconsin-Madison. Her current research interest include consumers' use of health and nutrition information, managers' use of market research information, and social marketing. Brian Dondiego Uzzi has an M.S. in industrial administration from Carnegie-Mellon University and is presently a Ph.D. student in the department of sociology at the State University of New York at Stony Brook. Karen Russo France has an M.B.A. from the Katz Graduate School of Business, University of Pittsburgh and is currently a doctoral student in marketing at the University of Pittsburgh.