Development of catching by children in kindergarten to grade 8: a multicohort longitudinal study

The purpose of this study was to examine developmental change associated with catching by children in Grades Kindergarten through 8. Children's performance was tested on the Catching Subtest of the Ohio State University Scale of Intra Gross Motor Assessment (OSU-SIGMA). More precisely, four cohorts of boys and girls in Grades K-8 (N = 340) from 1992 to 2000: in 1992 Grades K-8, in 1994 Grades 2-8, in 1996 Grades 4-8, and in 1998 Grades 6-8. In 2000, the original Kindergarten cohort was tested again. Data, analyzed by hierarchical nonlinear modeling, yielded significant differences in mean initial status (intercept) of all three cohorts, in mean growth rate (slope) for the K-8 cohort only, in initial status of the K-8 cohort, and for participants in baseball and softball.     

A programmable relay and amplifier I/O interface for the PDP-8/E computer

Use of the Digital Equipment Corporation DR8 digital input/output buffer for the PDP-8/E computer is common. However, by itself the DR8 has inadequate output-driving capability for even the smallest laboratory device. A flexible low-cost control network designed to enable a DR8 interface to control any of 12 pico-reed relays for output driving or 8 programmable amplifiers for auditory signal presentation is described.     

A new OS/8 SKED

A new SKED run-time system and compiler have been designed for use under the OS8 operating system. OS8 is a set of programs designed by DEC for the PDP8 computer with 8K or more core memory locations and a mass-storage device (disk, or DEC-tape). The advantages of OS8 include operator convenience, device independent input-output, standard file formats, and convenient program chaining as well as a set of standard data analysis programs. The new compiler, OSCOMP, differs from the previous version in two ways. The first new feature is the ability to process named input and output files on any OS8 compatible peripheral. The second feature is the utilization of 8K of core, permitting compilation of longer state tables than could be processed with the earlier version. Furthermore, with a disk as the OS8 peripheral, the compilation process is essentially instantaneous, for state tables previously requiring from 3–30 min with paper tape devices. The new run-time system, OSRTS8, contains a variety of new features. The most important improvements are the abilities to record data on the OS8 peripheral as well as to read state tables stored as files on the mass-storage device. Other new features include chaining of state tables, automatic start, automatic output file specification, and capability for as many as 12 simultaneous stations.     

Psychometric analysis of the short-form UCLA Loneliness Scale (ULS-8) in Taiwanese undergraduate students

The main purpose of this study was to validate the short-form of the UCLA Loneliness Scale (ULS-8; Hays & DiMatteo, 1987) in Taiwanese undergraduate students. A total of 130 undergraduate students participated in this study. Participants completed the ULS-8 in addition to measures of life satisfaction, social support, and adult attachment style. Result of confirmatory factor analysis supported the one-factor model of the ULS-8 with adequate values of various fit indices, revealing that the 8 items of the scale were homogeneous for measuring loneliness. In addition, the ULS-8 had a negative relationship with life satisfaction, and social support; and a positive one with anxiety and avoidant attachment tendency. All the findings showed that the ULS-8 was an adequate short-form measure of loneliness.     

Between Wonder and Doubt: Psychoanalysis in the Goal-Free Zone

This paper examines the experiential dimensions of wonder and doubt as one way to articulate the creative and growth-promoting tensions between the medical/scientific model and the spiritual/mystical model. Both forms of experience, it is argued, function as necessary elements in a psychotherapy that integrates psychoanalysis and spiritual praxes. Fundamental differences between the medical/scientific model and the spiritual/mystical models are examined. The notion of the gap serves to illustrate these diametrically opposed, albeit compatible and necessary, points of view. The multifaceted layers of movement between Buddhism and psychoanalysis typify interacting dynamics between the two disciplines and provide a focal point for discussion. The paper then explores parallels between the Zen Buddhist notion of Satori as explicated in the writings of D. T. Suzuki and Wilfred Bion's notion of O. Theoretical aspects of the discussion provide a backdrop for exploring clinical experience regarding the relationship between acceptance and change, the clinical relevance of the Buddhist notions of gaining idea and basic goodness. The author also explores relationships between presence as actuality and ideal; knowing and not knowing; wonder and doubt. Clinical material supports the theoretical aspects of the discussion.     

Relative reinforcing effects of different oral ethanol doses in rhesus monkeys

The relative reinforcing effects of different doses of orally delivered ethanol were evaluated. Mouth-contact responding by rhesus monkeys was measured under concurrent fixed-ratio fixed-ratio schedules of liquid delivery (0.67 ml/delivery) from each of two spouts during daily 3-hr sessions. Experiment 1 examined persistence of responding with ethanol (2%, 8%, and 32% wt/vol) and water available. When fixed-ratio values from 8 to 128 were tested, the number of ethanol deliveries obtained per session decreased as the response requirement increased. The decrease in deliveries was less at higher than at lower ethanol concentrations, however. Experiment 2 examined choice between two ethanol concentrations under concurrent fixed-ratio 16 schedules (4% vs. 8%, 4% vs. 16%, 8% vs. 16%, 2% vs. 8%, 2% vs. 32%, 8% vs. 32%). Higher concentrations (16%, 32%) generally maintained more responding than concurrently available concentrations of 8% or less. An exception was the observation of a preference for 8% over 32% ethanol. When the fixed-ratio value was increased, however, the relative preference for these two doses was reversed so that 32% ethanol maintained more responding than 8% ethanol. Thus, the direction of the preference depended on the size of the response requirement. These results indicate that the reinforcing effects of ethanol increase with dose.     

The effect of cul length and hippocampal lesions on maze learning in the rat

Integrative Psychological and Behavioral Science - Twenty-four tats, 8 with bilateral hippocampal lesions, 8 with cortical lesions and 8 unoperated rats, were tested on one of 2 mazes. Half of each...     

Power difference between players and level of matrix as determinants of competition in a MDG

At first, it was demonstrated that social comparison theory (Festinger, 1954) predicting a need for moderate (instead of maximal) superiority, could reconcile a number of disparate results of earlier Maximizing Difference Game (MDG) experiments. Using the same theory, it was then further predicted that high power players in an asymmetrical MDG would compete less than their inferior opponents or than equal power players in a symmetrical MDG and that the inferior and equal power players would not differ in competition. The data of an experiment, involving an asymmetrical (8/6) MDG matrix and two symmetrical MDG matrices (8/8 and 6/6), generally confirmed these predictions, but it was observed serendipitously that the high 8/8 symmetrical matrix yielded more competition than the lower 6/6 symmetrical matrix. An extended replication of this variable with five linearly related MDG matrices (4/4, 5/5, 6/6, 8/8 and 12/12) showed a similar result, namely most competition in the highest matrices and least in the lowest ones. The finding was interpreted in terms of the competitive motivation of the players and the low cost of competition in the highest matrices.     

Descartes and the Primacy of Practice: The Role of the Passions in the Search for Truth

This paper argues that Descartes conceives of theoretical reason in terms derived from practical reason, particularly in the role he gives to the passions. That the passions serve — under normal circumstances — to preserve the union of mind and body is a well-known feature of Descartes's defense of our native make-up. But they are equally important in our more purely theoretical endeavors. Some passions, most notably wonder, provide a crucial source of motivation in the search after truth, and also serve to reinforce memory. Our cognitive successes and failure scan also be tracked by passions and trains of passions.     

The hippocampus as an odour encoder

Summaries of recently published papers of interest to cognitive scientists. Readers who would like to contribute to this section, by identifying appropriate papers and writing short summaries, should contact the Editor (tics@current-trends.com).     

Baseline differences,attention, and age differences in time-sharing performance

The purpose of this experiment was to determine whether age differences noted when two tasks are performed concurrently can be accounted for in terms of age differences in single task baseline performance. Two groups of 12 8-year-olds and one group of 12 13-year-olds performed a compensatory tracking task and an auditory matching task, first alone and then time shared. The 8- and 13-year-old baseline groups performed baseline trials on each task prior to time-sharing trials. Each training group 8-year-old was randomly paired with a 13-year-old and given sufficient single task practice before time sharing to equate the 8- and 13-year-old pair members' baselines on both tasks. Results showed trained 8-year-olds to be indistinguishable from 13-year-olds in time sharing, whereas the 8-year-old baseline group showed significantly greater decrements in time-sharing and higher baseline scores on both tasks. These data provide support for the hypothesis that time-shared performance is directly related to level of baseline performance.     

Desirable and undesirable masculine and feminine traits in relation to students' dieting tendencies and body image dissatisfaction

Previous research showing greater femininity among overweight persons used measures of masculinity and femininity which have been criticized for conceptual and psychometric reasons. The present study used the Spence-Helmreich measures to examine the interrelationships among socially desirable and socially undesirable instrumental (masculine) and expressive (feminine) traits, body weight, and other attributes of cognitive concern about dieting and weight-related appearance. While body weight was unrelated to these measures of psychological masculinity and femininity, sex differences were found in the relationship of masculinity and femininity to dieting tendencies. dissatisfaction with physical appearance, and achievement motivation in these samples of college undergraduates.     

Acute neuropsychological consequences of coronary artery bypass surgery

This study examines a series of coronary artery bypass patients (CABS) for neuropsychological and regional cerebral blood flow (RCBF) changes at 8 days and 8 weeks post surgery. Seventy-three percent were found to have moderate or severe neuropsychological deficits at 8 days post operation and 37% at 8 weeks post surgery. A comparison group of major vascular and thoracic surgery patients was also found to have a significant proportion of neuropsychological deficit following surgery. The RCBF assessments indicated a significant drop in mean RCBF at 8 days post surgery in the coronary artery bypass group which did not persist to 8 weeks. The comparison group showed no changes in RCBF following surgery. The findings suggest different patterns of recovery and origins of the neuropsychological deficit in the two groups and emphasize the need for appropriate control groups in studies examining the cortical effects of extracorporeal circulation. In addition, the project received generous support from the special trustees of the Middlesex Hospital.     

Независимость одной системы аксиом и правила вывода пропозиционального исчисления

- Allatum est die 5 Martii 1970     

Minimized tolerance to the suppressive effects of CCK8 on operant responding

This study was designed to determine if tolerance to cholecystokinin octapeptide (CCK8) could be prevented or minimized by spacing injections, and if an appetitive operant conditioning paradigm provides a sensitive baseline to test the effects of CCK8. Male Sprague-Dawley rats were trained to press a lever for water according to a fixed-interval 60-sec schedule of reinforcement. After response rate stabilized, rats were given a series of CCK8 (0.04 mg/kg, ip) injections spaced several days apart. The first injection of CCK8 produced complete response suppression during the 30-min test session, while later injections produced partial or complete suppression. Thus, tolerance to CCK8, as measured by operant response rate, may be minimized if injections are appropriately spaced.     

Antibody to amyloid beta protein alleviates impaired acquisition,retention, and memory processing in SAMP8 mice

SAMP8 (senescence-accelerated mouse, P8 strain) mice overproduce amyloid precursor protein and beta-amyloid and have learning and memory deficits. Preliminary data have indicated that overproduction of beta-amyloid plays a role in the pathogenesis of acquisition and retention deficits in SAMP8 mice. In the studies reported here, the authors examined the effects of polyclonal and monoclonal antibodies to beta-amyloid on acquisition and retention in an aversive T-maze testing paradigm when injected intracerebroventricularly (ICV) into 12-month SAMP8/TaJF mice. Both the polyclonal and monoclonal antibodies improved acquisition and retention when injected ICV 1 to 14 days prior to acquisition testing. Injection of all three antibodies intrahippocampally immediately following training improved retention on the T-maze when mice were tested 7 days later. The authors next studied the effect of monoclonal beta-amyloid antibody injected 48 h prior to training on the effect on retention in the T-maze of drugs modulating classical neurotransmitters. Arecoline and glutamate were injected directly into the hippocampus, and ketanserin, methiothepen, bicuculline, and OH-saclofen were injected into the septum. Previously, the authors have found that the doses of these drugs required to improve retention are markedly altered in 12-month SAMP8/TkJF mice compared to 4-month P8 mice. In these studies, it was demonstrated that antibody to beta-amyloid resulted in these drugs improving retention at doses that improved memory in 4-month SAMP8/TaJF mice. Based on these findings, we conclude that beta-amyloid overproduction is at least in part responsible for the acquisition and memory deficits in 12-month-old SAMP8/TaJF mice. Antibody to beta-amyloid restores the retention response to neurotransmitter manipulation to that seen in 4-month-old mice. beta-amyloid appears to play a key role in the loss of acquisition and retention seen in SAMP8/TaJF mice.     

Cognitive-behavioral treatment of childhood obsessive-compulsive disorder in community-based clinical practice: clinical significance and benchmarking against efficacy

Objective

To evaluate the feasibility and outcomes of evidence-based (EB) manualized, cognitive-behavioral treatment (CBT) for childhood obsessive-compulsive disorder (OCD), when delivered in an outpatient community-based specialist clinic.

Method

This study, conducted in an outpatient private clinic in South-East Queensland Australia, involved thirty-three children and adolescents with OCD. Children were assessed at pre- and post-treatment, by means of diagnostic interviews, symptom severity interviews, and self-report. Treatment involved 12 sessions CBT delivered either individually or in small groups and included parental involvement.

Results

Manualized CBT could be transported to the community setting effectively, with 63% of the current sample responding positively, based on post-treatment diagnosis. Significant change was evident across a wide-range of outcomes; including, diagnostic severity, symptom severity, child reported depression and anxiety, and both child and parent reported OCD functional impairment.

Conclusions

This study provides evidence for the transportability of manualized CBT in clinical community practice for pediatric OCD. The next important step is larger community based dissemination and effectiveness studies to advance both research and clinical practice outcomes.     

“Hit Me, Maybe, One More Time”: Brief measures of impulsivity and sensation seeking and their prediction of blackjack bets and sexual promiscuity

We sought to construct an efficient, reliable, and valid self-report measure of impulsivity and sensation-seeking. We used item response theory to identify the 8 best items (ImpSS-8) from the 19-item Impulsivity and Sensation-Seeking Scale (Zuckerman, Kuhlman, Joireman, Teta, & Kraft, 1993; Study 1). The ImpSS-8 interacted with a manipulated ego threat to predict blackjack bets: in a weak situation (no ego threat), individual differences were strong (a positive ImpSS-8-bets relationship); in a strong situation (ego threat), individual differences were weak (no relationship; Study 2). The ImpSS-8’s 4-item impulsivity and sensation-seeking subscales related differentially to the Balloon Analogue Risk Task (Study 2) as well as trait measures of openness and conscientiousness, hostility and physical aggression, and sexually promiscuous attitudes and timing (Study 3).