Divergent thinking in the grasslands: thinking about object function in the context of a grassland survival scenario elicits more alternate uses than control scenarios

The survival processing effect is a recall advantage for information processed in the context of a grassland survival scenario. The current studies build upon previous research suggesting the effect is due to elaborative encoding and functional thinking. In two experiments, participants completed the “alternate uses test” under five conditions: baseline, grassland survival, Ebola survival, moving to a new home and planning a bank heist. Experiment 1 stimuli were everyday objects. Experiment 2 stimuli were functionally ambiguous “mystery” objects. Number of generated uses was highest in the baseline, but the grassland scenario was consistently highest of the schematic conditions. Recall data lend support to the mnemonic superiority of the grassland condition. Results suggest that grassland scenarios place fewer attenuating constraints on divergent thinking. It is suggested that the survival processing effect might be usefully conceptualised as an effect of creatively thinking about object function in response to broadly defined problems.     

字谜问题解决中顿悟的原型启发机制再探

以中国传统字谜为实验材料,采用多对多的“学习-测试”二阶段实验范式和ERP记录手段,研究了原型字谜和靶字谜之间是否含有共同字词对顿悟的原型启发的影响。结果发现,在靶字谜呈现后的700ms内,正确解决有共同字词、无共同字词和基线条件字谜所诱发的脑电活动基本一致。在800-1700ms时间窗口内,有共同字词条件和无共同字词条件比基线条件诱发了一个更正的P800-1700成分,可能反映了原型启发下原型的激活和新颖联系的形成。此外,有共同字词条件和无共同字词条件诱发的波形始终趋于一致,可能表明字面上相同的字词并没有对原型启发产生影响,而原型字谜和靶字谜之间内在的语义联系才是原型启发的关键。     

A Scanpath Analysis of the Risky Decision‐Making Process

In the field of eye tracking, scanpath analysis can reflect the sequential and temporal properties of the cognitive process. However, the advantages of scanpath analysis have not yet been utilized in the study of risky decision making. We explored the methodological applicability of scanpath analysis to test models of risky decision making by analyzing published data from the eye‐tracking studies of Su et al. (2013); Wang and Li (2012), and Sun, Rao, Zhou, and Li (2014). These studies used a proportion task, an outcome‐matched presentation condition, and a multiple‐play condition as the baseline for comparison with information search and processing in the risky decision‐making condition. We found that (i) the similarity scores of the intra‐conditions were significantly higher than those of the inter‐condition; (ii) the scanpaths of the two conditions were separable; and (iii) based on an inspection of typical trials, the patterns of the scanpaths differed between the two conditions. These findings suggest that scanpath analysis is reliable and valid for examining the process of risky decision making. In line with the findings of the three original studies, our results indicate that risky decision making is unlikely to be based on a weighting and summing process, as hypothesized by the family of expectation models. The findings highlight a new methodological direction for research on decision making. Copyright © 2016 John Wiley & Sons, Ltd.     

The effects on priming of word frequency, number of repetitions, and delay depend on the magnitude of priming

Conflicting findings with respect to the effects of experimental manipulations on priming have been reported in previous studies. It is argued that, in many priming tasks, large amounts of task-relevant information are available from various sources, and that, therefore, the information available from a specific study episode will have only a small impact on overall performance level. Under such circumstances, high levels of baseline performance and small priming effects will be observed. The experiments reported here investigated the hypothesis that a high baseline performance in informationprocessing tasks that are used to measure priming may constrain priming effects. In a series of wordnaming experiments, perceptual difficulty and, therefore, baseline performance was manipulated. Under easy conditions, priming effects were relatively small and were not affected by word frequency, spaced repetition, or delay. Under more difficult conditions, priming effects were larger, and significant effects of all of the above-mentioned experimental manipulations were observed. Under conditions that produced the largest priming effects, a significant relationship between priming and explicit-memory performance could be observed. In the last experiment, it was shown that the characteristics of the retrieval task can substantially affect the magnitude of priming. It is argued that priming effects should be considered to reflect interactions between memory traces and the information-processing components of the priming task.     

Mind matters: A narrative review on affective state-dependency in non-invasive brain stimulation

Variability in findings related to non-invasive brain stimulation (NIBS) have increasingly been described as a result of differences in neurophysiological state. Additionally, there is some evidence suggesting that individual differences in psychological states may correlate with the magnitude and directionality of effects of NIBS on the neural and behavioural level. In this narrative review, it is proposed that the assessment of baseline affective states can quantify non-reductive properties which are not readily accessible to neuroscientific methods. Particularly, affective-related states are theorized to correlate with physiological, behavioural and phenomenological effects of NIBS. While further systematic research is needed, baseline psychological states are suggested to provide a complementary cost-effective source of information for understanding variability in NIBS outcomes. Implementing measures of psychological state may potentially contribute to increasing the sensitivity and specificity of results in experimental and clinical NIBS studies.     

A replication of the use of public posting in traffic speed control

In an attempt to replicate several previous studies, a reversal design was used to assess the effects of publicly posted feedback on vehicle speed reduction. The intervention phases consisted of daily posted feedback that supplied drivers with either accurate or inaccurate information regarding the percentage of vehicles exceeding the speed limit on the road. Results from the two feedback conditions indicated no speed reduction in comparison to baseline levels. These results are discussed in light of previous studies that found strong effects for such feedback. Baseline levels of driver compliance and methodological differences may limit the effectiveness of posted feedback in reducing speeding.     

Comparison of social time-out and activity time-out procedures in suppressing ethanol self-administration in alcoholics

The experiments compared the potencies of three different contingent time-out procedures for suppressing drinking in alcoholics, and also compared two different experimental methodologies for conducting such studies. In a residential research ward setting fourteen volunteer chronic alcoholics were given daily access to 17 alcoholic drinks provided that a minimum of 40 min elapsed between receiving successive drinks. Each drink contained 1 oz 95-proof ethanol in orange juice. During the baseline condition subjects were free to drink with no behavioral restrictions. However during the time-out conditions, specific behavioral restrictions were imposed on the subjects for the 40-min period following receipt of each drink. The results showed that Social time-out suppressed drinking to 71 per cent of baseline conditions, while Activity time-out and the combined Social and Activity time-out suppressed intake to 36 and 24 per cent, respectively. The study also demonstrated that similar experimental results were obtained when subjects were continuously exposed to the experimental conditions for a number of consecutive days. or intermittently exposed to different conditions in a mixed order over successive days.     

Skill level and graphical detail shape perceptual judgments in tennis

Reducing the representation of human actions from normal video to biological motion animation in perceptual tasks means removing a number of visual features from the scenery, thereby eliminating potentially useful information for successfully performing the task. To determine the impact of selected visual features on perceptual judgments in tennis, we invited skilled players and novices to predict baseline shot direction under four different display conditions (PL: point-light display; PL_TC: PL plus an animated tennis court; NV_NB: normal video without ball; NV: normal video). Skilled players clearly outperformed novices and prediction performance increased with more realistic display content. Both groups were similarly affected by display conditions and across groups significant differences between conditions were only found for PL vs NV, and PL_TC vs NV, respectively. Application of signal detection theory on response data revealed that, unlike novices, skilled players showed a bias towards preferentially expecting cross-court shots and this bias increased with enhancement in graphical detail. Results confirm previous research in that biological motion appears to provide the minimal essential information necessary for correctly predicting an opponent's intent, particularly in skilled players. In addition, findings indicate that a combination of player and scenery-related visual information is likely to facilitate visual anticipation; however, such information seems to impact skilled players' and novices' response behaviour differently.     

Say something nice: A meta-analytic review of peer reporting interventions

Peer reporting interventions (i.e., Positive Peer Reporting and tootling) are commonly used peer-mediated interventions in schools. These interventions involve training students to make reports about peers' prosocial behaviors, whether in oral or written form. Although peer reporting interventions have been included in meta-analyses of group contingencies, this study is the first meta-analytic review of single-case research focusing exclusively on peer reporting interventions. The literature search and application of inclusion criteria yielded 21 studies examining the impact of a peer reporting intervention on student behavior compared to baseline conditions. All studies used single-case experimental designs including at least three demonstrations of an effect and at least three data points per phase. Several aspects of studies, participants, and interventions were coded. Log response ratios and Tau were calculated as effect size estimates. Effect size estimates were synthesized in a multi-level meta-analysis with random effects for (a) studies and (b) cases within studies. Overall results indicated peer reporting interventions had a non-zero and positive impact on student outcomes. This was also true when data were subset by outcome (i.e., disruptive behavior, academically engaged behavior, and social behavior). Results were suggestive of more between- than within-study variability. Moderator analyses were conducted to identify aspects of studies, participants, or peer reporting interventions associated with differential effectiveness. Moderator analyses suggested published studies were associated with higher effect sizes than unpublished studies (i.e., theses/dissertations). This meta-analysis suggests peer reporting interventions are effective in improving student behavior compared to baseline conditions. Implications and directions for future investigation are discussed.     

Eliciting explanations: Constraints on when self-explanation aids learning

Generating explanations for oneself in an attempt to make sense of new information (i.e., self-explanation) is often a powerful learning technique. Despite its general effectiveness, in a growing number of studies, prompting for self-explanation improved some aspects of learning, but reduced learning of other aspects. Drawing on this recent research, as well as on research comparing self-explanation under different conditions, we propose four constraints on the effectiveness of self-explanation. First, self-explanation promotes attention to particular types of information, so it is better suited to promote particular learning outcomes in particular types of domains, such as transfer in domains guided by general principles or heuristics. Second, self-explaining a variety of types of information can improve learning, but explaining one’s own solution methods or choices may reduce learning under certain conditions. Third, explanation prompts focus effort on particular aspects of the to-be-learned material, potentially drawing effort away from other important information. Explanation prompts must be carefully designed to align with target learning outcomes. Fourth, prompted self-explanation often promotes learning better than unguided studying, but alternative instructional techniques may be more effective under some conditions. Attention to these constraints should optimize the effectiveness of self-explanation as an instructional technique in future research and practice.     

Guiding drivers towards safer driving speed: Exploiting visual dominance in speed adaptation

Inappropriate speed is a main cause of accidents. Drivers are often unaware of potential risks due to inadequate speed. To prevent dangerous situations, we need to understand perceptual factors influencing human speed perception. Due to the prominent role of vision in driving, we examined the effect of visuo-spatial stimuli on speed based on the optic flow. While developing an adaptive infrastructure measure to reduce speed, we conducted two consecutive studies, a driving simulator study and a field test to investigate findings further. In both studies, we placed lights on two sides of a highway exit and either illuminated them statically or activated them in a way that they appeared to be moving towards the driver. We expected drivers to slow down more when seeing static light stimuli compared to a baseline without lights. We also expected drivers to decrease speed more in conditions with oncoming lights compared to a baseline, and to static lights, due to distorted speed perception. The first study in a static driving simulator revealed no difference between conditions. In the field test, both static lights and lights moving towards the driver led to a speed reduction compared to a baseline but did not differ from one another. Lights in general led to lower driving speed, potentially due to their warning character, but we found no difference between the light conditions, suggesting that the effect might not be based on the optic flow. Future research should investigate the relationship between driven and perceived speed more closely.     

Lessons on the utilization of research from nine case experiences in the natural hazards field

Research-funding organizations and research investigators can take several steps to improve the utilization of scientific research. These steps were derived from nine case studies of research projects in the natural hazards field, representing three academic fields of study: physical science, social science, and architecture. The case studies investigated the extent to which these projects corroborated the conditions associated with specific theories of research utilization. Following a replication research design, the cross-case conclusions were that greater utilization will result where research investigators and users maintain a rich set of professional communications over time, leading to research that is: academically excellent, addresses practical problems, can be modified in the early stages to be responsive to users’ needs, and produces usable products. Robert K. Yin is President of COSMOS Corporation, which specializes in both social science research and in information systems development. Dr. Yin also serves as a visiting professor, department of Computer Science and Information Systems, American University, Washington, D.C. 20016. Gwendolyn B. Moore is a senior manager for Nolan, Norton, & Co., an information technology affiliate of Peat Marwick. She specializes in information technology and strategic planning projects, and holds an MBA in Business Policy from the University of Massachusetts.     

A SUPERVISORY STRATEGY TO IMPROVE WORK PERFORMANCE FOR LOWER FUNCTIONING RETARDED CLIENTS IN A SHELTERED WORKSHOP

A multiple component strategy was investigated for aiding staff responsible for supervising production of lower functioning retarded clients on contract tasks in an institution-based sheltered workshop. The strategy was assessed in a combined multi-element, multiple baseline across groups design with a reversal component. Production performance increased during the production supervisory strategy with all 16 clients, with the range of increase varying from a few percentage points to 150% of baseline production. Both the clients and staff (responsible for conducting the research) preferred working under experimental conditions rather than under baseline conditions which approximated those found in “typical” sheltered workshops.     

Brain imaging in neurogenetic conditions: realizing the potential of behavioral neurogenetics research

Behavioral neurogenetics research is a new method of scientific inquiry that focuses on investigation of neurodevelopmental dysfunction associated with specific genetic conditions. This research method provides a powerful tool for scientific inquiry into human gene-brain-behavior linkages that complements more traditional research approaches. In particular, the use of specific genetic conditions as models of common behavioral and cognitive disorders occurring in the general population can reveal insights into neurodevelopmental pathways that might otherwise be obscured or diluted when investigating more heterogeneous, behaviorally defined subject groups. In this paper, we review five genetic conditions that commonly give rise to identifiable neurodevelopmental and neuropsychiatric disability in children: fragile X syndrome, velo-cardio-facial syndrome, Williams syndrome, Turner syndrome, and Klinefelter syndrome. While emphasis is placed on describing the brain morphology associated with these conditions as revealed by neuroimaging studies, we also include information pertaining to molecular genetic, postmortem, and neurobehavioral investigations to illustrate how behavioral neurogenetics research can contribute to an improved understanding of brain disorders in childhood.     

An experimental analysis of electricity conservation procedures

Daily electricity consumption of four families was recorded for 106 days. A reversal design, consisting of various experimental conditions interspersed between repeated baseline conditions, was used. During experimental conditions, daily prompts (written conservation slogans attached to front doors) and/or daily feedback (daily kilowatts consumed and daily cost information) were in effect. Maximum consumption occurred during the initial baseline; minimum consumption occurred during different experimental conditions for different families. The mean decrease from the maximum to the minimum for all families was 35%. Reversals in consumption were demonstrated in three families, although successive baselines tended to decrease. No clear differences in effectiveness between prompting and feedback conditions were apparent. The procedures used resulted in considerable dollar savings for the families.     

Vocal affect expression as an indicator of affective response

This research is designed to validate the measurement of vocal affect expression as an accurate indicator of affective responses. Subjects who support legalized abortion read aloud either proattitudinal or counterattitudinal statements. Their recorded voices were digitized, standardized against their own baseline vocal parameters, and analyzed for differences in mean and range of fundamental frequency between the pro-attitudinal and counterattitudinal conditions. Subjects with strong initial attitudes exhibited the expected pattern of negative affect while reading counterattitudinal material. However, subjects with initial attitudes moderate in strength exhibited an unexpected pattern of negative affect when reading pro-attitudinal information. Written measures of the affective and evaluative components of attitudes toward: abortion and; a measure of mood were employed to validate the voice measure.     

Recognition bias and the physical attractiveness stereotype

Previous studies have found a recognition bias for information consistent with the physical attractiveness stereotype (PAS), in which participants believe that they remember that attractive individuals have positive qualities and that unattractive individuals have negative qualities, regardless of what information actually occurred. The purpose of this research was to examine whether recognition bias for PAS congruent information is replicable and invariant across a variety of conditions (i.e. generalizable). The effects of nine different moderator variables were examined in two experiments. With a few exceptions, the effect of PAS congruence on recognition bias was independent of the moderator variables. The results suggest that the tendency to believe that one remembers information consistent with the physical attractiveness stereotype is a robust phenomenon.     

A comparison of sources of baseline data for treatments of problem behavior following a functional analysis

It is common practice in research on the treatment of problem behavior to compare levels of targeted behaviors during treatment to levels when treatment is not in place. Some researchers use data collected as part of a multielement functional analysis as the initial baseline, whereas others collect new baseline data following completion of the functional analysis. We evaluated whether the source of baseline data influences the reliability and efficiency of decision-making. Results suggest that similar decisions are made in regard to treatment efficacy using the different sources of baseline data, but using data from a multielement functional analysis as baseline may save time. Interrater agreement was adequate, but lower for some graphs than has been observed in past studies. Several potential explanations for this discrepancy are discussed.     

Implementing scientific practices through case studies: Examples using home-school interventions and consultation

Integrating scientific methods into school psychological practice is an essential tenet of effective service. In this article, we present two related examples that demonstrate methods by which to conduct high-quality intervention and consultation case studies with integrity. The present case studies utilized home note and consultation-based interventions to improve task completion and accuracy in mathematics for primary grade students who had demonstrated performance difficulties despite adequate intellectual ability and academic skills. Two sets of case studies were conducted. One involved the use of a home-school note implemented by parents and teachers in conjunction with a self-instruction manual. The second set of case studies used the home note and manual instituted in the context of behavioral consultation with parents and teachers. Both interventions (home-note-only and home note with consultation) increased math completion and accuracy in underachievers. Levels of performance were stable and differences between baseline and treatment conditions were statistically significant for consultation students only. Treatment integrity, maintenance of treatment gains, and consumer acceptability were also stronger in the consultation case studies. The implications for practitioners and future research are explored.     

Value-Congruent Information Processing: The Role of Issue Involvement and Argument Strength

Two experimental studies were carried out to investigate the influence of value-congruent information on information processing. We hypothesized that recipients would engage in systematic processing in value-congruent conditions, whereas heuristic processing would be used in value-incongruent conditions. One hundred participants in each experiment received a message that was framed in either environmental/altruistic or economical/egoistic terms, containing either strong or weak arguments. Results showed that value-congruent messages resulted in discrimination between strong and weak arguments, whereas for value-incongruent messages argument strength had either weak or no effects. Implications and future research are discussed.