Resources, confusions, and compatibility in dual-axis tracking: displays, controls, and dynamics

Why do people often find that performing two tasks at once is harder than performing one task at a time? Three mechanisms of task interference that might answer that question were investigated: resource competition, confusions, and incompatible task proximity between processing stages. The subjects performed dual-axis compensatory tracking with error displays that were either integrated or separated, with axis controls that either were integrated into one stick or remained separate, and with control dynamics on the two axes that were either the same or different. Tracking error increased and control activity decreased as a function of the combined difficulty of the two control dynamics. Integrated displays and integrated controls both led to increased confusions between tracking axes although error was not reliably affected. Significantly, performance was also affected by whether the integrality of displays matched that of controls. These results suggest that resource competition, confusions, and compatibility of proximity play distinct roles in dual-axis tracking performance.     

Pain,suffering, and anxiety in animals and humans

We attempt to bring the concepts of pain, suffering, and anxiety into sufficient focus to make them serviceable for empirical investigation. The common-sense view that many animals experience these phenomena is supported by empirical and philosophical arguments. We conclude, first, that pain, suffering, and anxiety are different conceptually and as phenomena, and should not be conflated. Second, suffering can be the result — or perhaps take the form — of a variety of states including pain, anxiety, fear, and boredom. Third, pain and nociception are not equivalent and should be carefully distinguished. Fourth, nociception can explain the behavior of insects and perhaps other invertebrates (except possibly the cephalopods). Fifth, a behavioral inhibition system associated with anxiety in humans seems to be present in mammals and most or all other vertebrates. Based on neurochemical and behavioral evidence, it seems parsimonious to claim that these animals are capable of experiencing anxious states.     

Word valence, attention, and hemispheric activity in depressed, remitted, and nondepressed controls

Clinically depressed (n = 20), previously depressed (n = 28), and nondepressed control (n = 27) individuals, classified according to a structured clinical diagnostic interview, participated in a study employing a modified prior entry (Titchener, 1908) procedure to investigate interrelationships among word (adjective) valence, visual attention, and cerebral hemispheric activity. Overall, positive words were selected more quickly when presented to the right, versus left, visual field (RVF, LVF); the opposite pattern was observed for negative words. While there was no significant group X Valence X Visual Field interaction, planned comparisons revealed that the aforementioned Valence X Visual Field interaction was significant only for the nondepressed control group. Although the remitted group exhibited an overall pattern similar to the control group, the depressed group evinced a pattern in the opposite direction for positive words (i.e., quicker in the LVF than the RVF).     

Personality and creativity in realistic,investigative, artistic,social, and enterprising college majors

Despite much research on how interests are related to personality and creativity, comparatively little work has focused on how different college majors as categorized by the RIASEC model compare on these constructs. In this study, 3295 college students (207 Realistic, 1945 Investigative, 447 Artistic, 480 Social, and 216 Enterprising) completed a five-factor personality measure, a brief self-report of creativity, and the Compound Remote Associates Task (CRAT). Investigative and Artistic majors scored higher on openness and self-assessed creativity than Realistic and Social majors, and Investigative majors were much more agreeable than other majors.     

Perfectionism, and Cognitions, Affect, Self-esteem, and Physiological Reactions in a Performance Situation

The current paper describes the results of an experiment in which 200 students who varied in levels of trait perfectionism performed a laboratory task and then were assessed in terms of levels of state affect, state self-esteem, and state automatic thoughts. Independent variables included task difficulty (high versus moderate level of difficulty) and performance feedback independent of their actual level of performance (positive or negative). Analyses also examined objective levels of performance (i.e., the number of errors on the task) and initial confidence in performance. Analyses showed that the experience of state automatic thoughts involving perfectionism was associated with negative automatic thoughts, negative affective reactions, and lower state self-esteem. Analyses of changes in mood and self-esteem showed generally that participants high in socially prescribed perfectionism had increased levels of dysphoria and anxiety and lower levels of state self-esteem following the experience of negative performance feedback or after having a relatively poor performance. Analyses of the physiological measures found increased systolic blood pressure among self-oriented perfectionists who had poorer performance and among socially prescribed perfectionists who had received negative feedback about their performance. The results for heart-rate changes yielded a less clear pattern, though there was evidence that participants with high socially prescribed perfectionism had increased heart rate if they received negative feedback and were relatively low in confidence. Collectively, these findings illustrate that how perfectionists react in challenging situations varies as a function of actual performance, performance feedback, and feelings of personal efficacy.

Ethnic Identity, Self-Esteem, and Values in Dominicans, Puerto Ricans, and African Americans

This study investigates the relationship between ethnic identity, self-esteem, value orientations, and perceived value congruence in 207 minority students. It also investigates within-group concordance and cross-cultural differences in value orientations. Dilemmas were used to measure value orientations and perceived congruence between personal and group values. A version of the Multigroup Ethnic Identity Measure (Phinney, 1992) and Rosenberg's Self-Esteem Scale (1965) were used to measure ethnic identity and self-esteem, respectively. Ethnic identity was positively related to self-esteem. The perception of value congruence was not related to ethnic identity or self-esteem. There was within-group concordance in the ranking of value solutions. In addition, the groups differed in the strength of ethnic identity, perceived value congruence, and the ranking of the value solutions.     

Tempo,Rhythm, and Aging in Golf

Older (n = 12) and younger (n = 12) golfers attempted to hit a golf ball into a target net a short distance away. An accelerometer attached to the back of the clubhead measured the applied force. In contrast to the more typical finding of slower perceptual-motor performance by older adults, older golfers reached their peak downswing force earlier in the shot and also exhibited a trend toward a faster overall speed or tempo of the shot. Additionally, older golfers exhibited greater changes in applied force and greater variability. A pattern of divergence among the force-time histories from multiple shots suggested that the overall person-plus-golf-club dynamics were unstable during a part of the shot. Older adults may be slower in controlling this instability. Half of the participants heard a tone whose pitch was proportional to their force. These participants had a slower follow through; however, they did not make significantly more or fewer shots than participants who had not been presented with the tone. Analyses of the temporal covariation among the backswing, downswing, and follow-through favored a chain-like temporal structure over a hierarchical, proportional structure. The pattern of covariation suggests that the tempo and rhythm of the shot are not independent and that changing one's tempo may disrupt rhythm.     

Optimism, Pessimism, and Hope in Durkheim

In Book Two, Chapter (1), of The Division of Labor in Society (1984) entitled "The Progress of the Division of Labor and Happiness", Emile Durkheim (1858–1917) stages a provocative encounter between the attitudes of optimism and pessimism, an encounter that reveals certain problematic assumptions regarding the status of hope in relation to the project of binding oneself to life under conditions of anomie. Durkheim's theoretical assault on the utilitarian-based optimism of his day is accomplished against the backdrop of a critical pessimism that is shown to be equally untenable. However, his critique leaves the question of the status of hope in relation to the question of human happiness unclarified and ambiguously framed, even as Durkheim defends hope against the despair of pessimism. The essay concludes with a critical appraisal of Durkheim's partial critique of pessimism and a few observations regarding the links between memory, expectation, pessimism, suicide, hope, and happiness.     

Stress,sex, and satisfaction in marriage

Using data from 198 couples, this study examines whether associations between stress occurring outside of the dyad and key indicators of relationship functioning are mediated by stress arising within the dyad. Findings suggest that relationship satisfaction and sexual activity are governed by hassles and problems experienced within the dyad that are in turn related to stress arising outside the dyad. Associations between external stress and relationship functioning are stronger for daily hassles than for critical life events. Higher levels of daily stress predicted less sexual activity for maritally dissatisfied women and more sexual activity for maritally dissatisfied men. Self‐reports of stress covaried with self‐reported indexes of satisfaction and sexuality, suggesting that contextual influences are broadly influential in intimate relationships.     

Self-consciousness,self-determination,and imagination in Kant

I argue for a basically Sartrean approach to the idea that one's self-concept, and any form of knowledge of oneself as an individual subject, presupposes concepts and knowledge about other things. The necessity stems from a pre-conceptual structure which assures that original self-consciousness is identical with one's consciousness of objects themselves. It is not a distinct accomplishment merely dependent on the latter. The analysis extends the matter/form distinction to concepts. It also requires a distinction between two notions of consciousness: one relates to the employment of already formed concepts, the other to the structures of imaginative apprehension that help to constitute (empirical) concepts from the start. We need to see that (1) so far as objects are only conceptualized appearances, the material through which we apprehend them must be reflected in that apprehension itself; (2) the corresponding material consists of a manifold of pre-conceptually active anticipations and retentions concerning the course of one's own experience. The resultant structure imposes an orientation on the world of appearances that does not derive from a concept of oneself as an individual in it, but that nevertheless provides the only possible basis for such a concept. One's self-concept, at least as empirical subject, is simply that ofwhatever subject is indicated, in an appropriate way, by that orientation.     

Temperament, distraction, and learning in toddlerhood

The word- and nonword-learning abilities of toddlers were tested under various conditions of environmental distraction, and evaluated with respect to children's temperamental attentional focus. Thirty-nine children and their mothers visited the lab at child age 21-months, where children were exposed to fast-mapping word-learning trials and nonlinguistic sequential learning trials. It was found that both word- and nonword-learning were adversely affected by the presentation of environmental distractions. But it was also found that the effect of the distractions sometimes depended on children's level of attentional focus. Specifically, children high in attentional focus were less affected by environmental distractions than children low in attentional focus when attempting to learn from a model, whereas children low in attentional focus demonstrated little learning from the model. Translationally, these results may be of use to child health-care providers investigating possible sources of cognitive and language delay.