The effect of target specification on objects fixated during visual search

When a person searches for a target in a cluttered visual field his eye fixations typically fall on objects. The effect of target specification on the probability of fixating different classes of objects was studied. For fields containing objects differing widely in size, color, and shape: a high proportion of searchers’ fixations were on objects of a specified color, a moderate proportion of their fixations were on objects of a specified size, and a s light proportion of their fixations were on objects of a specified shape. When two or more target characteristics were specified, fixations were generally based on a single characteristic. It is proposed that the specification of a target creates a perceptual structure which the searcher explores. The study of visual fixations, in effect, is the study of the perceptual structure.     

A pendulum phenomenon in the visual perception of apparent movement

In setting up an apparatus for studying the phenomenon of apparent movement it was noticed that, when a metronome was employed for making the electrical contacts in the light-circuits, the path of apparent movement between the two lights was curved instead of straight. This deviation could not be attributed to the presence of any distorting structure in the visual field, and an experimental investigation of the conditions of the phenomenon was begun. So far five different display conditions have each been observed by ten or eleven subjects individually. No subject saw more than one condition in the experimental series, and their reports indicate that the following factors, in order of importance, are effective in leading to the perception of curved apparent movement: (1) the shape of the light-stimuli, (2) the regularity of the rhythm of presentation, (3) the gradient of brightening and dimming of the lights and (4) the sound of the metronome in synchrony with the appearance of the lights.

The possible role of past experience in the perceptual process, and the relationship of this “pendular” phenomenon to Johansson's (1950) “wandering” phenomenon and to normal stroboscopic movement, are briefly discussed.     

Parent-adolescent conflict: an empirical review

Conflict between parents and adolescents is usually seen as a normal and necessary part of human development. However, treatment approaches for problematic conflict differ depending on several variables including theoretical orientation of the clinician. This article compares and contrasts psychoanalytic, systems, and social learning theories in order to determine the empirical support for each. In addition, several issues inherent in parent-adolescent conflict are reviewed including developmental stage theory, parenting styles, peer pressures, communications skills, marital conflict, drugs, school, and sex. Several studies and reviews of the literature are examined for common conclusions. Finally, an integrated and empirically supported model to explain parent-adolescent conflict is described.     

The MCMI as a measure of DSM-III

The Millon Clinical Multiaxial Inventory (MCMI) has been interpreted as a measure of DSM-III disorders. However, the MCMI was constructed and validated primarily as a measure of Millon's (1969, 1981) taxonomy, not DSM-III. Comparison of the two taxonomies and examination of the MCMI's content validity for two of the MCMI scales indicate only a partial congruence between the Millon and DSM-III taxonomies. There has been no published empirical research concerning the relationship between the MCMI and DSM-III, and the derivation and cross-validation research for the MCMI scales employed Millon's taxonomy and not DSM-III. It is suggested that until such data have been presented one should be cautious in one's interpretation of the MCMI as a measure of DSM-III disorders.     

The effects of peer-teaching on student perceptions of class environment,adjustment, and academic performance

This study explored the effects of a social studies peer-teaching intervention on student perceptions of class environment, adjustment, and academic performance. There were 45 students in the experimental group (E) and 46 controls (C) from four fifth-grade classes in a suburban, predominantly white, middle-class school. The Classroom Environment Scale (CES) and a School Opinion Survey were used to assess student views of the classroom. Students completed self-esteem and peer sociometric rating measures and teachers submitted adjustment ratings for all pupils. Report card and average monthly grades were recorded in social studies. After the intervention, Es compared to Cs came to see their classes as more Involved, Orderly and Organized, and Competitive, and reported being happier in class and enjoying aspects of their school work more. The groups did not differ in change in self-esteem. Both groups improved directionally in peer liking, though Cs did so more than Es. Teachers rated Es as having increased competence and decreased in problems after the program. Es did significantly better than Cs both on report cards and monthly social studies grades due primarily to the substantial improvement of Es with initially low academic status.     

An investigation of the nomological network of social interest

This paper presents the results of three studies relating a composite measure of social interest to numerous variables within the nomological network of social interest. Study 1 found that social interest is positively related to sex-role femininity, androgyny, positive ambition, other-centered life goals, and, surprisingly, sex-role masculinity. Study 1 also found social interest negatively related to a narcissistic life goal, personality rigidity, and negative interpersonal behavior (Drivenness). Study 2 correlated social interest with the Personality Research Form and found, as expected, that social interest is correlated with the Affiliation and Nurturance scales. Unfortunately, social interest was not negatively related to Aggression. Finally, Study 3 provided generally positive support for the hypothesized relationships between social interest and several variables from the Life Styles Inventory (e.g., Humanism, Affiliation, etc.). Implications of the results for the construct validity of Adlerian social interest theory and current measurement of social interest are presented.