Risk factors for drug use in urban adolescents: Identification and cross-validation

Examined the relationship between 26 dichotomous risk factors and drug use in derivation (N = 1,352) and cross-validation (N = 1,309) samples of seventh graders in the public school system of a large southeastern city. The majority of students was African American, many came from low-income, single parent families. A total of 20 risk factors representing a variety of variables was significantly related to at least one category of drug use in both samples. Regression analyses identified a subset of 11 risk factors with minimum overlap. The simple sum of these 11 risk factors was significantly associated with prevalence of use for cigarettes, beer and wine, hard liquor, marijuana, and other drugs. The total number of risk factors also showed a curvilinear relationship with the frequency of 30-day use for each category of drug. Theoretical and practical implications of these findings are discussed.     

Of Nobel class: A citation perspective on high impact research authors

The purpose of this paper was to determine if quantitative rankings of highly cited research authors confirm Nobel prize awards. Six studies covering different time periods and author sample sizes were reviewed. The number of Nobel laureates at the time each study was published was tabulated, as was the number of high impact authors who later became laureates. The Nobelists and laureates-to-be were also compared with non-Nobelists to see if they differed in terms of impact and productivity. The results indicate that high rankings by citation frequency identify researchersof Nobel class — that is, a small set of authors that includes a high proportion of actual Nobelists and laureates-to-be. Also, the average impact (citations per author) of Nobelists and laureates-to-be is sufficiently high to distinguish them from non-Nobelists in these rankings. In conclusion, a simple, quantitative, and objective algorithm based on citation data can effectively corroborate —and even forecast — a complex, qualitative, and subjective selection process based on human judgement.     

APOLOGIA PRO SCRIPTURA SUA, OR MAYBE WE GOT IT RIGHT AFTER ALL

Abstract. A summary of the progress of biogenetic structuralism as an approach to the social and behavioral sciences is presented, from the publication of Biogenetic Structuralism in 1974 to the present. The difficulty that many scholars have found integrating neuroan-thropology and comparative ethology into an understanding of cultural, and particularly of religious, phenomena over the past almost two decades is considered. More specifically, the articles of James Ashbrook and Mary Lynn Dell published in the same June 1993 issue of Zygon as this article are analyzed and responded to. These authors critique Eugene d'Aquili's work of integrating neuropsychology and religious experience primarily by analyzing Brain, Symbol & Experience , which d'Aquili co-authored with Charles Laughlin, Jr., and John McManus, H. Rodney Holmes's article in the same issue of Zygon analyzes the whole corpus of d'Aquili's religion and science work as it appeared over the years in the pages of Zygon and in other articles and books as well as in Brain, Symbol & Experience. This critique is likewise carefully considered and responded to. Finally a proposed trajectory of d'Aquili's (and Andrew Newberg's) future work in their ongoing project integrating neuropsychology and religious experience is elaborated. This involves, not only expansion of their general theoretical approach, but also empirical testing of hypotheses relating brain function to religious experience using PET scanning and some newer MRI visualization techniques.     

Identification and impact of risk and protective factors for drug use among urban African American adolescents.

Identified 10 risk and 12 protective factors associated with drug use among African American 8th graders (N = 994) in an urban school system. Regression analyses identified 7 risk and 7 protective factors with minimal overlap. The total number of risk factors was significantly related to the prevalence of use for cigarettes, beer or wine, liquor, marijuana, and a composite measure of drug use. The Protective Factor Index (PFI) was a significant moderator of the relation between risk and use of beer or wine, liquor, marijuana, and the composite measure. Longitudinal analyses of data on 650 students across the transition from middle to high school indicated that the sum of risk factors predicted changes in all drug use categories except the composite. The PFI significantly predicted changes in beer or wine, liquor, and composite drug use over this 1-year period. It also moderated risk for cigarette use, but not for other drugs. Results replicated prior studies and highlighted the importance of protective factors such as adaptive functioning in school and family influences.     

Dynamics of oralrespiratory coordination in full-term and preterm infants: I. Comparisons at 38-40 weeks postconceptional age

This study compares the coordination of pacifier sucking and breathing between healthy full-term, low risk preterm, and high risk preterm infants at 38–40 weeks postconceptional age. High and low risk preterm infants did not differ in overall score on a neurobehavioral examination (NAPI), but infants in the high risk group differed from the others in breathing frequency and in the coordination of breathing and sucking rhythms. For infants in the high risk group, sucking had less influence on respiratory frequency and patterns of coordination between the frequencies of sucking and breathing were simpler. Oral–respiratory coordination may be a useful marker of infants at risk for later speech problems.     

Habituating effects of nonhydrational oral stimulation on ingestive behaviors

The role of oral stimulation in the control of ingestive behavior was investigated using an airlicking procedure. It was hypothesized that the oral experience of airlicking would inhibit subsequent ingestive activity (water intake), possibly via an habituation process as suggested by recent research (Swithers, 1996). Rats were implanted with gastric cannulas and trained to lick at a stream of air. Experimental conditions con-sisted of combinations of airlicking and intragastric hydration followed by oral intake of water. In support of the main hypothesis, airlicking did reduce subsequent ingestive activity. While the role of habituation was not tested directly, the results lend support to the proposal that oral stimulation does control ingestion, and this control could act through an habituation process.     

Coding left and right

The present study compared the processing of direction for up and down arrows and for left and right arrows in visual displays. Experiment 1 demonstrated that it is more difficult to deal with left and right than with up and down when the two directions must be discriminated but not when they must simply be oriented to. Experiments 2 and 3 showed that telling left from right is harder regardless of whether the responses are manual or verbal. Experiment 4 showed that left-right discriminations take longer than up-down discriminations for judgments of position as well as direction. In Experiment 5 it was found that position information can intrude on direction judgments both within a dimension (e.g., a left arrow to the left of fixation is judged faster than a left arrow to the right of fixation) and across dimensions (e.g., judging vertically positioned left and right arrows is more difficult than judging horizontally positioned left and right arrows). There was indirect evidence in these experiments that although the spatial codes for up and down are symmetrical, the codes for left and right may be less so; this in turn could account for the greater difficulty of discriminating left from right.     

Inferences about others from their reports about themselves

Subjects in this study were asked to infer an attribute of a target person on the basis of his report about himself: Two informational determinants of such inferences were varied: (a) reliability of the report, i.e. the belief that the target person would correctly report events that had actually occurred and (b) diagnosticity of the actual events, i.e. the belief that the actual events are indicative of the attribute. Normative considerations require that the effect of diagnosticity be dependent on reliability so that as reliability increases, judgment should become less regressive, i.e. vary more as a function of events' diagnosticity. The results indicate that subjects employed a simple but inappropriate averaging rule in combining reliability and diagnosticity information. This rule, like many other simplifying judgmental heuristics, resulted in inferences that were more extreme than warranted by normative models. The inappropriate combination of reliability and diagnosticity information may thus contribute to observers' tendency to over-attribute personal characteristics to others.