A computerized system for analyzing linear locomotion

An accurate and reliable, yet simple and inexpensive electronic tracking device delivers voltages that denote changing positions of moving objects. In combination with an analog-to-digital converter, a microcomputer, and specific software, this device enables the depiction and analysia of linear or linearly represented locomotion. The system is particularly useful for laboratory analysis of animal movements. An application in preference-avoidance testing is described.     

Stress specificities: differential effects of coping style, gender, and type of stressor on autonomic arousal, facial expression, and subjective feeling

In this study several factors considered to be relevant in mediating stress arousal were experimentally manipulated. Ss selected for the coping styles anxiety denying, low anxiety, and high anxiety were confronted with both low- and high-arousal-inducing situations, using 2 different types of stressors (cognitive vs. emotional) in each case. Arousal reactions were measured in 3 response modalities: verbal report of subjective experience; nonverbal, nonvocal behavior; and physiological reactions. The results reveal complex interactions between type and degree of stress, coping style, and gender of Ss, confirming findings on vocal parameters of stress. These complex interactions are discussed with respect to the possibility that Ss' evaluation of situation characteristics may be influenced by coping styles and gender, resulting in differential reaction patterns.     

The voice of confidence: Paralinguistic cues and audience evaluation

A standard speaker read linguistically confident and doubtful texts in a confident or doubtful voice. A computer-based acoustic analysis of the four tapes showed that paralinguistic confidence was expressed by increased loudness of voice, rapid rate of speech, and infrequent, short pauses. Under some conditions, higher pitch levels and greater pitch and energy fluctuations in the voice were related to paralinguistic confidence. In a 2 × 2 design, observers perceived and used these cues to attribute confidence and related personality traits to the speaker. Both text and voice cues are related to confidence ratings; in addition, the two types of cue are related to differing personality attributes.     

Factors associated with responses to sexual harassment and satisfaction with outcome

This study examined contextual and behavioral factors and types of responses to sexual harassment in relation to harassed employees' satisfaction with the outcome of sexual harassment situations. Subjects were 105 male and female faculty and staff members (89.5% Caucasian; 5.7% multiethnic/multicultural; 4.8% unspecified) employed by a midwestern university who reported experiencing unwanted sexual attention on the job. Results undicated that employees responded more strongly to unwanted sexual behavior if they perceived it as sexual harassment and if they perceived their work climate as encouraging the problem. Harassed employees' gender, power, and perceptions of the work climate were all associated with their satisfaction with the situation outcome. Although making a formal or informal complaint was not associated with greater satisfaction, talking to the harasser without using aggressive communication strategies increased the likelihood of a satisfactory outcome for the employee. Talking to family or friends, a response used by women more often than men, was associated with dissatisfaction. Suggestions for further research are discussed.This research was primarily funded by the Center for Public Affairs Research at the University of Nebraska at Omaha. The authors gratefully acknowledge the research assistance of Jami Winters, Gena Ritter, Sarah Holmes, Kim Gangwish, and Mary Lou Costanzo.     

Potential pitfalls in computational modelling of appraisal processes: A reply to chwelos and oatley

Abstract

This paper extends the discussion on computational approaches towards modelling emotion antecedent appraisal processes, based on Scherer (1993a) and Chwelos and Oatley (1994). In the first part we briefly discuss the different goals that motivate such modelling as well as potential pitfalls. We then take up some of the critiques of GENESE expressed by Chwelos and Oatley, and examine the proposed alternatives. The paper concludes with an outline of perspectives for future work in this domain.     

Neurofunctional (re)organization underlying narrative discourse processing in aging: evidence from fNIRS

Relatively few studies have analyzed the mechanisms underlying the cognitive changes that affect language in the elderly, and fewer have done so for narrative discourse. The goal of this study was to explore the neurofunctional changes associated with aging for different components of narrative discourse. Functional near-infrared spectroscopy (fNIRS) and behavioral data on 10 younger adults and 10 healthy elderly participants were collected. Ten younger adults in a non-proficient second language condition were included to explore the possibility that the age-related neurofunctional reorganization partly expresses demanding resource allocation. Results show within- and across-hemispheric differences in the neurofunctional pattern of activation in the older participants with reference to the younger ones, partially shared with the low-proficiency young adults, providing support for the recognized mechanisms underlying neural reserve and compensation. fNIRS was shown to be appropriate for studying the age-related neurofunctional reorganization of complex cognitive abilities.     

Neuroscience findings are consistent with appraisal theories of emotion; but does the brain "respect" constructionism?

I reject Lindquist et al.'s implicit claim that all emotion theories other than constructionist ones subscribe to a "brain locationist" approach. The neural mechanisms underlying relevance detection, reward, attention, conceptualization, or language use are consistent with many theories of emotion, in particular componential appraisal theories. I also question the authors' claim that the meta-analysis they report provides support for the specific assumptions of constructionist theories.     

Reliable facial muscle activation enhances recognizability and credibility of emotional expression

We tested Ekman's (2003) suggestion that movements of a small number of reliable facial muscles are particularly trustworthy cues to experienced emotion because they tend to be difficult to produce voluntarily. On the basis of theoretical predictions, we identified two subsets of facial action units (AUs): reliable AUs and versatile AUs. A survey on the controllability of facial AUs confirmed that reliable AUs indeed seem more difficult to control than versatile AUs, although the distinction between the two sets of AUs should be understood as a difference in degree of controllability rather than a discrete categorization. Professional actors enacted a series of emotional states using method acting techniques, and their facial expressions were rated by independent judges. The effect of the two subsets of AUs (reliable AUs and versatile AUs) on identification of the emotion conveyed, its perceived authenticity, and perceived intensity was investigated. Activation of the reliable AUs had a stronger effect than that of versatile AUs on the identification, perceived authenticity, and perceived intensity of the emotion expressed. We found little evidence, however, for specific links between individual AUs and particular emotion categories. We conclude that reliable AUs may indeed convey trustworthy information about emotional processes but that most of these AUs are likely to be shared by several emotions rather than providing information about specific emotions. This study also suggests that the issue of reliable facial muscles may generalize beyond the Duchenne smile.