How young children spend their time: Television and other activities.

Time-use diaries were collected over a 3-year period for 2 cohorts of 2- and 4-year-old children. TV viewing declined with age. Time spent in reading and educational activities increased with age on weekdays but declined on weekends. Time-use patterns were sex-stereotyped, and sex differences increased with age. As individuals' time in educational activities, social interaction, and video games increased, their time watching entertainment TV declined, but time spent playing covaried positively with entertainment TV. Educational TV viewing was not related to time spent in non-TV activities. Maternal education and home environment quality predicted frequent viewing of educational TV programs and infrequent viewing of entertainment TV. The results do not support a simple displacement hypothesis; the relations of TV viewing to other activities depend on the program content, the nature of the competing activity, and the environmental context. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Teamwork online: The effects of computer conferencing on perceived confusion, satisfaction and postdiscussion accuracy.

This study investigated the impact of computer-mediated communication on teamwork by examining 40 4-person teams working in either face-to-face or computer conferencing environments. Results were consistent with the belief that computer-mediated teams have trouble maintaining mutual knowledge. Compared with their face-to-face counterparts, computer-mediated teams viewed their discussions as more confusing and less satisfying, spent more time devising decisions, and felt less content with their outcomes. Discussion time mediated the relationship between the communication medium and outcome satisfaction. Confusion and outcome dissatisfaction predicted inaccuracies when members independently recorded team decisions; accordingly, the electronic communication medium reduced decision recording accuracy. By clarifying several shortcomings associated with computer conferencing, these results can be used to inform choices when selecting and developing effective team communication media. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

In vitro milling accuracy and fit of 'natural inlays'

OBJECTIVE: This study aimed to investigate the milling behaviour of natural inlays (NI) dental restorations constructed from sound extracted teeth. This was done by comparing the milling accuracy and fit of NI to those of industrial porcelain inlays (PI), milled in the same way. METHODS: A calibration pro-inlay was used to mill three NI and three PI. These were cemented in six acrylic cavities reproduced from the calibration mould, using composite luting cement. No etching and bonding were done. After storage for 24 h in water at room temperature the specimens were sliced buccolingually in a standardised way. For each specimen, two sections were photographed under a light-microscope, resulting in enlarged pictures of the sections. An acetate matrix with the measurement points was placed over each picture in a standardised way. The interfaces between inlays and moulds were measured at 13 fixed points per section using computerised image analysis software. The mean vertical- and floor-interfaces were calculated for each picture, and the overall means were found for each group. Confidence intervals were used for comparison of the differences. The profiles of the milled materials were examined using scanning electron microscopy. RESULTS: There were no differences between NI and PI in the mean interfaces (NI, 102 +/- 8 micrometers; PI, 107 +/- 8 micrometers). Electron microscopy revealed no apparent differences in the profiles of the milled surfaces. CONCLUSION: These findings indicate that the milling accuracy and the fit of natural inlays and milled porcelain inlays are comparable.     

Effects of uncontrollability on subsequent decision making: Testing the cognitive exhaustion hypothesis.

The cognitive exhaustion model of helplessness (predicting withdrawal from constructive effortful processing after uncontrollability) was applied to decision making. After unsolvable problems (or no preexposure), Ss requested information from a matrix with 5 alternatives (films)?×?10 attributes and then chose the best film. Films in a set were either similar (difficult decision) or dissimilar (easy decision) in attractiveness. As predicted, Ss with an uncontrollable preexposure spent less time on predecisional information search, disregarded their own importance criteria when asking for information, and had attention highly focused on a selected option for the easy decision condition but diffused across options for the difficult decision condition. The implications of these findings for understanding cognitive mechanisms of learned helplessness and depression are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Viewing pornography and sex guilt: The priggish, the prudent, and the profligate.

35 male undergraduates were divided into 3 groups on the basis of their scores on Mosher's Forced-Choice Guilt Inventory. The amount of time Ss spent viewing and rating photographic slides of varying erotic content was unobtrusively recorded. The viewing time of the low sex-guilt group increased linearly as a function of increasing pornographic content. There was no significant increase in viewing time for high sex-guilt Ss. Members of the moderate sex-guilt group exhibited a curvilinear viewing pattern. Results are consistent with a predicted defensive response on the part of high sex-guilt subjects, thus supporting Mosher's conceptualization and measure of sex guilt. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Female counselor–client dyads: Effects of counselor age, client marital status, and intimacy level of presenting problem on perceptions of counselors.

Explored the impact of counselor age, level of intimacy of clients' presenting problems, and client marital status on perception of counselors and the counseling relationship with 48 married females (mean age 21.9 yrs) and 48 unmarried females (mean age 26.3 yrs). Ss viewed a series of 3 videotapes, which were counterbalanced for level of intimacy of client's presenting problems and depicted initial interviews between young female clients and either younger or older female counselors. After viewing each individual vignette, Ss completed a counselor rating form, a client satisfaction form, and manipulation checks for presenting problem intimacy and counselor age. Overall, differences in presenting problems and counselor age were perceived as intended. Ss' marital status was unrelated to any measures. Counselors were judged as most expert, attractive, and trustworthy when dealing with presenting problems that were least intimate. Ss anticipated greater satisfaction with younger rather than older counselors only for the least intimate presenting problem. (22 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Sequence influence on the organization of meaningless serial stimuli: Economy after all.

This article provides evidence for an extension of structural information theory, a theory which describes perceptual organization formally, into a more general theory of representation that takes the role of organizations obtained earlier into account. In eight experiments, subjects studied series of colored dots. Each series contained 6–8 dots of different colors, and viewing time was between 400 ms and 60 s. In several experimental procedures, subjects recalled the series presented. The experiments systematically varied the economy of the organizations of the series as described by structural information theory as well as a number of aspects of the context in which the series were presented, like order of presentation of a series, order between the series, viewing span, viewing time, and recall procedure. Recall was influenced both by the economy as well as by the context. It is shown how the context influences the relative strength of the most economical organization as compared with rival, local organizations. A structured network model is presented that accounts for the influence of both the economy and the context. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Looking happy: The experimental manipulation of a positive visual attention bias.

Individuals with a positive visual attention bias may use their gaze to regulate their emotions while under stress. The current study experimentally trained differential biases in participants' (N = 55) attention toward positive or neutral information. In each training trial, one positive and one neutral word were presented and then a visual target appeared consistently in the location of the positive or neutral words. Participants were instructed to make a simple perceptual discrimination response to the target. Immediately before and after attentional training, participants were exposed to a stress task consisting of viewing a series of extremely negative images while having their eyes tracked. Visual fixation time to negative images, assessed with an eye tracker, served as an indicator of using gaze to successfully regulate emotion. Those participants experimentally trained to selectively attend to affectively positive information looked significantly less at the negative images in the visual stress task following the attentional training, thus demonstrating a learned aversion to negative stimuli. Participants trained toward neutral information did not show this biased gaze pattern. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Learning to draw and interpret standard and time-line genograms: An experimental comparison.

Genograms help reveal patterns of events and relationships in family histories. A variation of the standard genogram, the time-line genogram, uses a time scale as a vertical axis to show individuals and events directly in their proper temporal relationships (H. Friedman et al, 1988). After a brief training session, undergraduates with negligible experience in clinical matters recorded family data in the standard or time-line genogram formats or by taking notes. The 3 groups were equally successful in recording and interpreting family information. Although the time-line group reported more difficulty in recording, perhaps in reaction to the greater visual complexity of the time-line format, this group was best at recording events linked in time. When a complete graphic display of temporal patterns and relationships is needed, the time-line genogram may be a practical alternative to the standard format. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Expectancy, alcohol, and sex guilt as determinants of interest in and reaction to sexual stimuli.

Selected 72 male undergraduate social drinkers from high, moderate, and low scorers on the Sex Guilt subscale of the Mosher Forced-Choice Guilt Scale. Ss were assigned to 1 of 4 conditions in a balanced-placebo design utilized to control for psychological as well as physiological factors determining the effects of drinking on behavior. After consuming beverages, Ss viewed and evaluated photographic slides of erotic content and then reported on their sexual arousal. The time Ss spent viewing each slide was unobtrusively recorded. Overall, greater sexual arousal was indicated by Ss who thought they had received alcoholic beverages, regardless of actual drink content. In all conditions except the high sex guilt/expect tonic groups, viewing times increased as a positive linear function of pornography ratings of the slides. Results demonstrate that psychological aspects of individual differences can mediate expectancy effects in research on alcohol and social behavior. (22 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Memory seeding: Representations underlying quantitative estimations.

N. R. Brown and R. S. Siegler (1996) found that training participants on a subset of country populations improved estimations for novel transfer country populations, an effect called seeding that remained intact over time. They attributed this effect to the abstraction by participants of a general metric framework for estimating populations not dependent on specific country anchors. In a series of 3 follow-up experiments, the authors found that training on seed populations produces both general metric information and durable specific country information. Moreover, minimal amounts of general (mean or range of populations) or specific (1 or 3 countries) information made available for inspection while estimating produced a significant seeding effect. Retention over long intervals was facilitated by both presenting 3 seed countries as opposed to 1 and providing names for the seed countries. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Comparison of two low-molecular-weight heparins for the prevention of postoperative venous thromboembolism after elective hip surgery. Reviparin Study Group

BACKGROUND: Many physicians today are employed by another physician, group, hospital, HMO, or other organization. However, the differences in the characteristics, practice patterns, and patient outcomes of self-employed and employed physicians are not well understood. METHODS: The practices of 108 community family physicians in northeast Ohio were assessed using a multimethod cross-sectional design. Physician characteristics were assessed by questionnaire. Direct observation of 3536 consecutive patient visits was used to measure time use and the delivery of preventive services recommended by the US Preventive Services Task Force. Patient satisfaction was assessed with the Medical Outcomes Study (MOS) 9-item Visit Rating Form. RESULTS: Employed physicians were more likely to be female, in group practice, work fewer hours, and see fewer patients. Job satisfaction was similar between the two groups, but employed physicians reported greater satisfaction with leisure and family time. Employed physicians spent more time per patient visit, scheduled a larger percentage of well-care visits, and were more likely to refer to specialists. Employed physicians also spent a greater proportion of their patients' visit time performing history-taking and eliciting family information, and a lesser proportion of time on physical examination, planning treatment, providing health education, and chatting. Recommended screening and health habits counseling preventive services were more likely to be delivered by employed physicians. Patient satisfaction was similar for the two groups. CONCLUSIONS: Primary care physician characteristics and practice patterns differ by employment status. The consequences of the trend toward a largely employed physician workforce as reported in this study should be carefully considered.     

Dysphoria and decision making: Limited information use for evaluations of multiattribute targets.

The hypothesis was that dysphoric relative to nondysphoric individuals use less available, relevant information in decision making because of reduced attentional resources. Dysphoric and nondysphoric Ss evaluated 70 jobs, each of which was described in terms of 5 dimensions (e.g., friendliness of co-workers); there were 5 possible values for each dimension. In both studies, dysphoric relative to nondysphoric Ss used a smaller subset of information, yet did not simplify what information was used and did not combine the information in a more simple manner. The limited information use was not due to dysphoric Ss' systematically ignoring certain dimensions and was evident in both initial and final portions of the task. Dysphoric Ss spent as much time and reported using as much information and investing as much effort as nondysphoric Ss. Reported effort alone was related to actual information use. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Analyzing Rectangular Classrooms

The shape of classrooms is usually rectangular with various lengths and widths. Certain parts of the classroom are better than others for viewing the board depending on the viewing distance and horizontal viewing angle. Other parts are not as good in viewing the board where students are expected to commit errors in copying from the board and may take longer time in reading. This study attempts to analyze five sections of any classroom size, and an index is developed for each section in a particular academic term to reflect cumulative hours spent in each section by students. A case study is included to apply the concepts of classroom sections. Finally, a new classroom design in the shape of a trapezoid is recommended to maximize the best area for viewing the board. Architectural engineers and architects may find it challenging to design a building with classrooms of nontraditional shape.     

Effects of interview length and applicant quality on interview decision time.

Investigated the impact of applicant quality (high vs low) and expectation of interview length (30 vs 15 min) on interview decision time using 60 experienced employment counselors from private employment agencies as Ss (30 males average age 35.5 yrs; modal education level 4 yrs of college). Ss were shown a videotape of a staged interview and were asked to make a hire/not hire decision as soon as they felt they had sufficient information. As predicted, Ss required significantly more time to decide when viewing the high-quality applicant. They also required more time to decide when they expected the interview to last 30 min. An examination of the correlations between ratings and decision time for the high-quality-applicant condition showed most of them to be negative. However, correlations in the low-quality-applicant condition were mostly positive. (11 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Cognitive status impacts age-related changes in attention to novel and target events in normal adults.

In this study, the authors investigated the relationship between the cognitive status of normal adults and age-related changes in attention to novel and target events. Old, middle-age, and young subjects, divided into cognitively high and cognitively average performing groups, viewed repetitive standard stimuli, infrequent target stimuli, and unique novel visual stimuli. Subjects controlled viewing duration by a button press that led to the onset of the next stimulus. They also responded to targets by pressing a foot pedal. The amount of time spent looking at different kinds of stimuli served as a measure of visual attention and exploratory activity. Cognitively high performers spent more time viewing novel stimuli than cognitively average performers. The magnitude of the difference between cognitively high and cognitively average performing groups was largest among old subjects. Cognitively average performers had slower and less accurate responses to targets than cognitively high performers. The results provide strong evidence that the link between engagement by novelty and higher cognitive performance increases with age. Moreover, the results support the notion of there being different patterns of normal cognitive aging and the need to identify the factors that influence them. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

An experimental investigation of three methods of providing weight and price information to consumers.

Simulated a supermarket setting to evaluate 3 methods of presenting information to consumers: (a) current supermarket method (showing total price and net weight); (b) current supermarket method, but adding a computational device to aid in price calculations; and (c) current supermarket method, but providing also price per ounce of net weight of product. 75 undergraduates were randomly assigned to 1 of the 3 methods of presentation and asked to choose the most economical package for each of 9 product groups. Results indicate that presenting the additional information of price per ounce of net weight produced a significant increase in accuracy of choices, while significantly reducing the time required to make such choices. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Post-decision consolidation, as a function of the instructions to the decision maker and of the decision problem

The effects of instructions and decision problems on post-decision processes were studied by varying the instructions to subjects. Subjects made a medical policy decision based on information on four attributes in Experiments 1-2. The subjects were given different instructions: (1) no instruction at all about a second session, (2) instruction to remember his/her decision until a session a week later, and (3) instruction to justify the decision at a later occasion one week later. The results indicated post-decision consolidation in the first group, as predicted by the Differentiation and Consolidation Theory (Svenson, 1992). The effect showed up in attractiveness restructuring in support of the chosen alternative on the most important attributes. The instruction to remember the decision until a later time increased the consolidation effect. Contrary to our expectations, the instruction to later justify the decision did not produce any consolidation. This effect was replicated in the second experiment and could not be interpreted as a random result. In a third experiment the decision problem was framed as an environmental pollution problem and it was preceded by a carefully designed booklet presenting arguments for and against different materials used in manufacturing packages for coffee. Subjects were then asked to make a choice of the same coffee in two different packages. The data indicated no difference in structural consolidation as a result of the instruction to justify or not. The paper concludes with a discussion pointing out the importance of the involvement in a decision task for decision differentiation and consolidation.     

Regional brain activation with advertising images.

Preferences for purchasing goods and services may be shaped by many factors, including advertisements presenting logical, persuasive information or those using images or text that may modify behavior without requiring conscious recognition of a message. We tested the hypothesis that these two types of messages (logical persuasion [LP] vs. nonrational influence [NI]) might affect brain function differently in a pilot project, using stimuli drawn from real-world print advertisements and quantitative electroencephalography as a noninvasive measure of regional brain activity. Twenty-four healthy subjects, 11 women and 13 men, viewed images while brain electrical activity was recorded. We used the low-resolution brain electromagnetic tomography method to quantify current intensity in brain regions implicated in decision-making and emotional processing. Data were analyzed using a block design to compare brain activity during LP and NI stimuli periods. LP images were associated with consistently and significantly higher activity levels in orbitofrontal, anterior cingulate, amygdala, and hippocampus regions than were NI images. These findings suggest that advertising images can evoke different levels of regional brain activity related to the use of LP and NI elements. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Cognitive and consensus processes in group recognition memory performance.

This experiment applies signal detection theory and social decision schemes to investigate the potential impact of information pooling, error correction, and effective decision-making processes in the general finding that groups perform better than individuals on memory tasks. Groups and individuals completed a true/false recognition test regarding material presented in a videotaped simulated job interview. Various indexes of memory performance indicated that each of the processes contributed to the superiority of group recognition memory performance. Social decision scheme analyses indicated that the plurality-correct-wins decision scheme was the best summary of the decision process. Subsequent analyses suggested that the confidence that group members held in their initial preferences influenced the group decision process. Discussion emphasized the impact of consensus, correctness, and confidence on group memory performance. (PsycINFO Database Record (c) 2010 APA, all rights reserved)