Depth perception of objects can greatly affect a user's experience of an augmented reality (AR) application. Many AR applications require depth matching of real and virtual objects and have the possibility to be influenced by depth cues. Color and luminance are depth cues that have been traditionally studied in two-dimensional (2D) objects. However, there is little research investigating how the properties of three-dimensional (3D) virtual objects interact with color and luminance to affect depth perception, despite the substantial use of 3D objects in visual applications. In this paper, we present the results of a paired comparison experiment that investigates the effects of object shape, fidelity, color, and luminance on depth perception of 3D objects in handheld mobile AR. The results of our study indicate that bright colors are perceived as nearer than dark colors for a high-fidelity, simple 3D object, regardless of hue. Additionally, bright red is perceived as nearer than any other color. These effects were not observed for a low-fidelity version of the simple object or for a more-complex 3D object. High-fidelity objects had more perceptual differences than low-fidelity objects, indicating that fidelity interacts with color and luminance to affect depth perception. These findings reveal how the properties of 3D models influence the effects of color and luminance on depth perception in handheld mobile AR and can help developers select colors for their applications.
Racial (black-white) comparisons were made on four dependent measures (MMPI) to probe three issues generated by previous inconsistent findings in this area. Issues were (a) defining primary sources of variance, (6) comparability of dependent measures, and (c) effect of selection criteria, in the form of common requirements for profile validity, on outcome. White counterparts were matched with 160 blacks on sex, socioeconomic status (education and occupation), hospital status, age, and duration of illness. Phase 1 analysis (# = 320) used all profiles. Phase 2 analysis (# = 116) was limited to valid profiles. Results showed (a) race to be a primary source of variance, (b) dependent measures are not entirely comparable, and (c) application of selection criteria is a powerful parameter influencing outcome. Blacks elevated Scales F, 1, 5, 8, 9, and the overall profile mean, more often elevated Scale 8 as the highest single point code, Scale 1 as the second-highest code, and produced more 8-6 and 2-4 codes than whites. Whites elevated Scale 3, more often elevated Scale 7, as the highest and as the second-highest point code, and produced 2-7 and 4-7 codes more frequently than did blacks.
A review of literature dealing with moon phases and psychiatric emergencies was undertaken. It was found that few empirical studies were conducted and that the earlier empirical studies did not reveal a lunar relation, whereas two recent reports have indicated a positive relation between lunar phases and deviant human behavior. Emergency psychiatric contacts to the High Plains Comprehensive Community Mental Health Center in Hays, Kansas, on the days of the full moon were compared with other periods during the month for a 12-month period (August 1971 through July 1972. Fewer emergency contacts were found on the full-moon day when compared with a 10-day interval before the full moon and with the mean number of emergency contacts during the week of the full moon. No other significant differences were found. The most parsimonious explanations for all findings in this matter involve Type I errors and sampling variability.
This study is concerned with the extent to which a person determines his own behavior. When there is an absence of autonomy, freedom or mastery, the person's behavior is seen as being determined by forces over which he has no control. There is a reduction of self-determination and an increase in non-self-determining forces. The mentally healthy person is seen as manifesting a trend toward self-expansion; life, to him, is a self-governing process. The person himself is the cause of his behavior. He is endowed with self-actualizing tendencies rather than being determined by external forces.It is assumed that mental illness is a condition in which the individual has lost much of his ability to examine alternatives flexibly and to arrive a t solutions which represent reasonable forms of adjustment (z, a ) . Recovery from mental illness would, therefore, be represented by the individuals' increased control over internal and external conditions, because the freedom and decisions regarding internal and external conditions become his responsibility and not the responsibility of fate, chance or powerful others, which are forces external to himself.Four general sources of experienced control (forces) are dealt with in this study. The first source represents the experience of controlling forces coming from internal sources (FI), such as "gut" level impulses. The second represents the experience of controlling factors one has over these internal forces (01), which are self-controlling mechanisms. The third, the experience of controlling forces one has over external forces or the environment (OE), such as social skills or any ability to manipulate one's environment of things or people. The fourth, the experience of controlling forces coming from external forces or the environment (FE), such as social customs or pressures to conform.Determinants of Behavior. Control experienced a t 01 and OE represents selfdetermined behavior. Control experienced at FI and FE represents non-selfdetermined behavior. Self-determined behavior pertains to the regulation of behavior by personal initiative and choice. Non-self-determined behavior implies that psychic occurrences are a function of factors other than personal initiative and choice.Loci. The intrapersonal processes are represented &s the internal locus (FI and 01), while the interpersonal processes are represented as the external locus (OE and FE). These loci have two widely accepted references. The intrapersonal or intrapsychic locus refers to those processes which arise and are anchored within the person, while the interpersonal or interactional locus refers to the individual's commerce with a psychological, social, or physical environment. Sources of Control. RI ETH ODDesign. The independent variables examined are (1) degree of adjustment, (2) loci, (3) situations, and (4) direction of control. The dependent variables are the ratio scores and the raw scores. Degree of adjustment is defined by the stage in which the individual is in psychiatric treatment. The loci of control refers t...
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