Language processing and reading ability in children: A study based on speech-shadowing techniques

Language-processing facility in good and poor readers was examined using two speech-shadowing experiments. A total of 54 children from the second, fifth, and eighth grades were tested (9 good and 9 poor readers at each grade level). The first experiment manipulated rate of presentation to study speed of processing auditory-linguistic information. Good readers were superior to poor readers in their ability to maintain shadowing accuracy at increased rates of presentation, although the performance patterns of the two groups varied according to grade level. In the second experiment, good and poor readers shadowed sentences exhibiting different degrees of grammatical acceptability. Unstructured word strings, without syntactic coherence, penalized good readers more than poor readers, relative to their performance on syntactically appropriate constructions. Poor readers did not differ from good readers in theirThis work was supported by funds from the National Science Foundation under Grant No. BNS-8405085. Portions of the research were presented at the Tenth Annual Boston University Conference on Language Development, Boston, 1985, and the meeting of the American Educational Research Association, San Francisco, 1986. This paper is based on a doctoral dissertation submitted to Harvard University.     

Effects of simultaneous oral-intragastric ingestion on meal patterns and satiety in humans

Simultaneous oral-intragastric ingestion of a liquid diet was compared with oral ingestion for 15-21 days in four males or normal weight, 18-21 years old. All the subjects are significantly more (M= 222 cm3 or kcal [930 kJ] per meal, p less than .025) during simultaneous compared with oral lunches and dinners. Subjects reduced the size and frequency of breakfasts and snacks, which were always ingested orally, however, and did not gain weight. In a second experiment, the same four subjects ate significantly more (M-177 cm3 more, p less than .001 at lunch when the rate of ingestion was 200 cm3/min compared with 100 cm3/min regardless of route (oral, intragastric or simultaneous). They also ate significantly more (M=135 cm3 more, p less than 0.25) during simultaneous meals compared with oral or intragastric meals ingested at the same rate. Thus, rate of ingestion and oral stimulation are important determinants of meal size in humans.     

Effects of small monetary incentives on return rates of a health survey to adults in rural areas

This study assessed differences in response rates to a mailed health survey by adults in two neighboring rural midwestern counties with differential incentives, of dollar 2.00 and dollar 5.00. Potential respondents in each county were randomly selected from a commercial database of residents' addresses. County "F" respondents (n = 541) which were 57% female and 95% Euro-American having a mean age of 47.3 yr. (SD= 16.9), received the dollar 5 incentive. County "H" respondents (n= 514) were 63% female, 95% Euro-American, had a mean age of 49.0 yr. (SD= 14.7), and received a S2 incentive. The response rates were 71% using the dollar 2 incentive and 73% using the dollar 5 incentive. These were not significantly different by chi-square test. The more cost-effective incentive for increasing the response rate of adults in this rural midwestern sample was to code the envelopes and use a dollar 2.00 rather than dollar 5.00 incentive, a cost per returned survey of dollar 5.24 versus dollar 9.13, respectively. The findings support Dillman's principle of diminishing returns as the size of the incentive goes up.     

Self-liking and self-competence separate self-evaluation from self-deception: associations with personality, ability, and achievement

The similarities between measures of self-evaluation and self-deception are reviewed, and a method for discriminating between them is proposed, using personality profiles and relations to ability and achievement. Across two samples, the Rosenberg Self-Esteem Scale (RSES) and Tafarodi's measures of self-evaluation were used to demonstrate that the RSES and Self-Liking are more similar to Self-Deceptive Enhancement than is self-competence. Further, Self-Competence is uniquely associated with cognitive ability and both academic and creative achievement. It is concluded that, along with self-liking, self-competence is a useful form of self-evaluation that should be measured and taken into account in research that has traditionally focused on self-esteem.     

Memory and interpretation of visual representations of threat in socially anxious and nonanxious individuals

The present study was designed to replicate and extend results reported by Brendle and Wenzel (Behav. Res. Ther. 42 (2004) 155), who found that socially anxious individuals accurately recalled threat-relevant information but subsequently imposed a biased interpretation upon that same material, using more ecologically valid stimuli. Socially anxious (n=37) and nonanxious (n=47) individuals viewed two positive, two negative, and two neutral video vignettes and completed two cognitive tasks assessing memory and interpretation of factual details immediately and after 48 h. Similar to the results reported by Brendle and Wenzel (2004), socially anxious and nonanxious individuals did not differ in their memory for details that had been presented in the vignettes. However, socially anxious individuals made more negative interpretations of details included in the vignettes than nonanxious individuals, although unlike Brendle and Wenzel (2004), they did not demonstrate the tendency to make less positive interpretations. It is concluded that socially anxious individuals are characterized by interpretation biases when presented with threat-relevant information, and there is no evidence to suggest that they are characterized by memory biases for threat-relevant information.     

Grip width and the organization of force output

The authors investigated the structure of force production and variability as a function of grip configuration and width during precision grasping. Variability was studied in absolute (standard deviation) and relative (coefficient of variation) terms; in addition, the authors used approximate entropy to examine regularity. In Experiment 1, the participants (N = 14) used a 2-digit grasp (thumb, index), whereas in Experiment 2, the participants (N = 11) used a 3-digit grasp (thumb, index, middle). The level and regularity of force increased with grip width. The amount of variability was least at narrow grip widths for 2-digit grasping and greatest at narrow grip widths for 3-digit grasping. That pattern of findings is not necessitated by the mechanical equilibrium of grasping; thus, it also reflected adaptive neural reorganization of force output to task demands.     

The “Big Tent” of Community Psychology: Reactions to Paul Toro’s 2004 Presidential Address

This article summarizes discussions that took place following Paul Toros presidential address for the Society for Community Research and Action (SCRA). Toro argued that community psychology and SCRA are big tents. He suggested growth through increasing the involvement of ethnic minorities, community practitioners, international colleagues, students and early career professionals and individuals from allied disciplines. Themes in the discussions included: the founding values of community psychology, diversity, and social action. Those present felt that the field was facing a mid-life crisis and needed to re-establish its identity. Newer professionals looked to their seasoned colleagues to help define and establish that identity, and involve them in the process. Respondents were supportive of increased involvement of individuals from oppressed groups and practitioners in SCRA. Less attention was paid to increasing the role of international colleagues, professionals from allied disciplines, and members of the community.     

Caregiver Knowledge and Adherence in Children With Sickle Cell Disease: Knowing is Not Doing

Though the impact of disease knowledge on adherence to medical recommendations has long been the focus of research, little of this research has focussed on sickle cell compliance in the child and adolescent population. The present study examined the relationship of caregiver knowledge of sickle cell disease (SCD) and children's adherence to prescribed behaviors. Though caregivers with high levels of knowledge of SCD were more likely to report higher levels of adherence, knowledge test score did not predict adherence for the majority of participants (72%). The effect of caregiver knowledge on reported adherence was greater among preadolescents (age ≤ 11) than adolescents (age ≥12). The relationship between knowledge and adherence may not be as strong or direct as is assumed in many theories of health behavior change.     

Recharging cognition with DC brain polarization

Electrical direct current (DC) has been applied to the human head throughout history for various reasons and with claims of behavioral effects and clinical benefits. This technique has recently been rediscovered and its effects validated with modern quantitative techniques and experimental designs. Despite the very weak current used, DC polarization applied to specific brain areas can alter verbal fluency, motor learning and perceptual thresholds, and can be used in conjunction with transcranial magnetic stimulation. Compact and safe, this old technique seems poised to allow major advances cognitive science and therapy.