Computerized procedure for analyzing hand kinematics with a peg-moving task (Sarah-Pegworks)

This article describes Sarah-Pegworks, a computerized procedure for analyzing hand kinematics based on the peg-moving task. The procedure, developed in Visual Basic 6 programming language, includes (1) processing raw data from an infrared motion-tracking system, (2) identifying movement components, and (3) analyzing and presenting hand kinematic information in numerical and graphic outputs. Fifty-five normal adults set the parameters relative to filtering and movement identification. A case was presented to illustrate the clinical value of this procedure.     

Becoming More Conscientious or More Open to Experience? Effects of a Two-Week Smartphone-Based Intervention for Personality Change

Research indicates that it might be possible to change personality traits through intervention, but this clinical research has primarily focused on changing neuroticism. To date, there are no established, proven techniques for changing other domains of personality, such as conscientiousness and openness. This research examined the effects of a two-week smartphone-based intervention to either change one facet of conscientiousness (i.e. self-discipline) or one facet of openness to experience (i.e. openness to action). Two intervention studies (total N = 255) with two active intervention groups for mutual comparisons were conducted. Results of self-reports and observer reports showed that people who wanted to become more self-disciplined were less self-disciplined at pretest. Similarly, people who wanted to become more open to action were less open to action at pretest. The results showed that people who chose the self-discipline intervention showed greater increases in self-discipline, and people who chose the openness to action intervention showed greater increases in openness to action compared with the other group. Changes were maintained until follow-up two and six weeks after the end of the intervention. Future work is needed to examine whether these personality changes are enduring or reflect temporary accentuation as a result of participation in the intervention. © 2020 European Association of Personality Psychology     

Clues for dominance in female chamois: Age,weight, or horn size?

A study of social interactions among female Apennine chamois Rupicapra pyrenaica ornata was made in Abruzzo National Park, central Italy, between 1981 and 1982. A linear hierarchy among females was observed, rank order being highly correlated with age, weight, and horn size. An analysis of which physical clues are used by females to assess dominance suggests that body weight may be the most important attribute. The percentages of threats and dominance displays decrease beyond 7–8 years of age when females usually start to lose weight, whereas horns keep growing throughout life. Furthermore, the greater effect of weight compared to that of horn size on the rank/age correlation supports our conclusion.     

Does the Simon effect affect movement execution?

The present work set out to test the prediction of the dual-route response selection account of the Simon effect, which maintains that the Simon effect, and its facilitation and interference components, should show up at the response selection stage irrespective of when it takes place during processing. Previous works have shown that in the case of a movement response, two strategies can be adopted for responding. The main difference between these two response strategies consists of when response selection operations take place. The two experiments reported in the present study showed that when response selection operates clearly before movement initiations, the Simon effect shows up in reaction time and not in movement time.     

Prenatal trauma and autism

Through the clinical history of a little girl, this paper explores some possible traumatic prenatal experiences of children who have autistic features from birth. It establishes a tentative connection between the precocity of the onset of pathology and potentially traumatic prenatal situations such as threats of miscarriage or pathological mental states in the pregnant mother. It is suggested that a psycho-physical retreat from the auditory experience of the mother's voice, which normally stimulates foetal proto-mental activity and may lead to the development of a 'sound-object', might contribute to the later autistic child's isolation and non-mental clinging to tactile sensations.     

A brief inventory of Interpersonal Problems-Circumplex using nonparametric item response theory: introducing the IIP-C-IRT

Nonparametric item response theory methods were applied to the responses of 1,000 college students on the 64 items of the Inventory of Interpersonal Problems-Circumplex (IIP-C; Alden, Wiggins, & Pincus, 1990) to develop an abbreviated 32-item version of the instrument. In a separate validation sample of 981 students, the newly selected scale items did not show evidence of differential item functioning across males and females. There was high convergence found between the new scales and IIP-C parent scales, along with commensurate or improved fits to the circular structural model relative to the full scale and its existing brief derivatives-the IIP-32 and the IIP-SC. Results provide evidence that the new brief scales can improve the level of precision and information yielded in brief assessments of interpersonal problems without gender bias.     

Features of the selectivity for contrast polarity in contour integration revealed by a novel tilt illusion

We studied a novel illusion of tilt inside checkerboards due to the role of contrast polarity in contour integration. The preference for binding of oriented contours having same contrast polarity, over binding of opposite polarity ones (CP rule), has been used to explain several visual illusions. In three experiments we investigated how the binding effect is influenced by luminance contrast value, relatability of contour elements, and distance among them. Experiment 1 showed that the effect was indeed present only when the CP rule was satisfied, and found it to be stronger when the luminance contrast values of the elements are more similar. In experiment 2 the illusion was reported only with relatable edges, and its strength was modulated by the degree of relatability. The CP-rule effectiveness, thus, seems to depend on good continuation. The intensity of contrast polarity signals propagating from an oriented contour might be the less intense, the more its direction deviates from linearity. In experiment 3 we estimated the distance threshold and found it to be smaller than the one found for other illusions, arising with collinear fragments. This seems to show that the reach of the contrast polarity signal inside the association field of a contour unit is shorter along non-collinear orientations than along collinear ones.     

Drug addicts in therapy—changes in life space in the course of one year

In a residential community treatment setting, moods and emotional states of drug addicts were explored over a 1‐year period. The specific form of treatment of heroin addiction employed in the communities is based on the importance of interpersonal relationships for psychosocial transition. Twenty‐nine participants reported current mood, emotions, attributions, and motive activation using a time‐sampling diary for 2 weeks at the beginning of the treatment, and 6 and 12 months later. Results show an increase in positive emotions, and in subjective strength and freedom. Furthermore, participants report higher self‐esteem and use less fatalistic attributions. This is interpreted as indicating successful transition processes in terms of higher autonomy, a more extended life space and increased levels of realism. Copyright © 2002 John Wiley & Sons, Ltd.     

Prestige in interest activity assessment

Prestige has been demonstrated to be a component in interest assessment [Tracey, T. J. G. (1997). The structure of interests and self-efficacy expectations: An expanded examination of the spherical model of interests. Journal of Counseling Psychology, 44, 32-43; Tracey, T. J. G. (2002). Personal Globe Inventory: Measurement of the spherical model of interests and competence beliefs [Monograph]. Journal of Vocational Behavior, 60, 113-172; Tracey, T. J. G., & Rounds, J. (1996a). The spherical representation of vocational interests. Journal of Vocational Behavior, 48, 3-41]. However, the content of prestige and thus its meaning in activity and competency preferences has not been clarified, nor has it been differentiated from alternative explanations such as sex-typing. A vector fitting procedure was utilized from theoretical and empirical approaches with samples of college students who rated each activity item from the Personal Globe Inventory (PGI; [Tracey, T. J. G. (2002). Personal Globe Inventory: Measurement of the spherical model of interests and competence beliefs [Monograph]. Journal of Vocational Behavior, 60, 113-172]) for the following content: prestige, effort required, skill required, competition involved, and female and male sex-typing. These content ratings were matched with the theoretical structure of the PGI scales in the first sample (N = 124) and the empirical structure of the PGI items in a second sample (N = 267). Across both approaches, the PGI prestige dimension was highly related to ratings for prestige, effort, skill, effort and skill, and competition, but unrelated to sex-typing. These results support the inclusion of prestige in interest activity assessment and also assist in its interpretation.     

Construct validity of the medical specialty preference inventory: A critical analysis

The Medical Specialty Preference Inventory (MSPI; Zimny, G.H. (1979). Manual for the Medical Specialty Preference Inventory. St. Louis, MO: St. Louis University School of Medicine), a measure of medical students’ interests, was substantively and empirically examined to identify an underlying factor structure. A factor model for the original MSPI based on 38 factors in five general areas was evaluated on a national sample of 1014 medical students and yielded poor fit to the data. Exploratory factor analyses at the item level utilizing the full pool of MSPI items produced an 11 factor solution with 88 items. Sub-scales were identified within this model and an 11-18 higher-order model and an 18 sub-scale model also were proposed. The relative fits of the three models were evaluated by confirmatory factor analysis with the 18 sub-scale model shown to be superior. This model was cross-validated on a separate sample of 1016 medical students and fit the data well. All sub-scales exhibited adequate internal consistency across samples. These findings support the need for a revised MSPI based on 18 scales. Implications of these findings for MSPI scoring practices are discussed along with future directions.