Soft constraints in interactive behavior: the case of ignoring perfect knowledge in-the-world for imperfect knowledge in-the-head

Constraints and dependencies among the elements of embodied cognition form patterns or microstrategies of interactive behavior. Hard constraints determine which microstrategies are possible. Soft constraints determine which of the possible microstrategies are most likely to be selected. When selection is non-deliberate or automatic the least effort microstrategy is chosen. In calculating the effort required to execute a microstrategy each of the three types of operations, memory retrieval, perception, and action, are given equal weight; that is, perceptual-motor activity does not have a privileged status with respect to memory. Soft constraints can work contrary to the designer’s intentions by making the access of perfect knowledge in-the-world more effortful than the access of imperfect knowledge in-the-head. These implications of soft constraints are tested in two experiments. In experiment 1 we varied the perceptual-motor effort of accessing knowledge in-the-world as well as the effort of retrieving items from memory. In experiment 2 we replicated one of the experiment 1 conditions to collect eye movement data. The results suggest that milliseconds matter. Soft constraints lead to a reliance on knowledge in-the-head even when the absolute difference in perceptual-motor versus memory retrieval effort is small, and even when relying on memory leads to a higher error rate and lower performance. We discuss the implications of soft constraints for routine interactive behavior, accounts of embodied cognition, and tool and interface design.     

Flow Experience in Design Thinking and Practical Synergies with Lego Serious Play

The flow experience can be an important precursor to high levels of creativity and innovation. Prior work has identified and conceptualized the key elements of the flow experience in cocreative activities as individual flow corridor, individual flow feeling, and group flow. Surprisingly, the flow experience is underrepresented in theory and practice of design thinking. In this empirical study, the flow experience at the individual and group level was investigated in a 1-day design thinking exercise. The findings from partial least squares (PLS) modeling of 230 observations confirm previously untested conjectures that (a) the elements of individual and group flow experience were prevalent and highly correlated in the design thinking activities and (b) the nature of the design thinking task had an impact on the flow experience. Finally, results confirm that Lego Serious Play skills-building as a creative warm-up had a positive effect on 2 of the 3 flow experience elements: individual flow feeling and individual flow corridor.     

NMDA receptor activity and the transmission of sensory input into motor output in introverts and extraverts.

Recent research suggests that individual differences in brain dopamine functioning may be related to the personality dimension of extraversion. The major goal of the present study was to answer the question of whether a pharmacologically induced change in glutamatergic NMDA receptor activity would also differentially affect the transmission of sensory input into motor out-put in introverts and extraverts. Therefore, in a double-blind within-subjects design, either 30 mg of the NMDA receptor antagonist memantine or placebo were administered to 48 healthy male volunteers before performing a choice reaction-time task. In introverts, memantine caused a pronounced increase in lift-off time (i.e., the time required to lift the finger from a home button) compared to that in extraverts, whereas movement time (i.e., the time required to move the finger from the home button to a response button) was decreased in both groups. The pattern of results suggests that extraversion-related differential sensitivity to pharmacologically induced changes in NMDA receptor activity is limited to functions that involve an interaction between the glutamatergic and dopaminergic systems.     

An integrative approach to leadership and social support

This study examined the effects of instrumental and socio-emotional behaviors of friends on stress reactions and task performance. A 2 (presence or absence of instrumental behavior) * 2 (presence or absence of socio-emotional behavior) * 2 (high or low legitimacy of influence) factorial design was used. Ninety-one college-age females as subjects and their close same-sex friends as confederates participated together in the experiment. Dependent variables were mean blood pressure (MBP) as a physiological stress reaction, state anxiety as a psychological stress reaction, and the level of performance in a simple arithmetic task. Instrumental behavior had a facilitating effect on task performance in the high legitimacy condition. Socio-emotional behavior showed a buffering effect on physiological stress reaction when the friend did not engage in instrumental behavior in the low legitimacy condition. These findings suggest that legitimacy of influence may be able to explain the differences between leadership and social support processes.     

Work plan availability and performance: An assessment of task strategy priming on subsequent task completion

The relation of task strategy planning to task performance was explored using a series of laboratory investigations. The first study examined the influence of providing a subject a work strategy and a specific work goal on his or her subsequent performance. A total of 72 subjects participated in a 2 (goal) × 2 (task strategy priming) × 3 (performance period) × 3 (task type) repeated measures, factorial design study. The results demonstrate that task strategy priming and goal setting increase the amount of an individual's planning and directs the type of plan developed. A second study was conducted (n = 90) to further explore the effect of task strategy priming on planning and performance. Taken together, the results of the studies demonstrate that (a) goal setting increases strategic planning, (b) priming influences the amount and type of planning engaged in by an individual, and (c) task performance varies as the result of the type of plan an individual develops. The results are discussed as a means of expanding the use of cognitive constructs in theories of work motivation.     

Using the Performance Diagnostic Checklist to evaluate and promote paraeducators' treatment fidelity

Paraeducators, who increasingly serve as implementers for students in special education, can struggle with intervention fidelity. Special educators, often responsible for providing paraeducators with support, receive limited supervision training. From organizational behavior management, the Performance Diagnostic Checklist-Human Services (PDC-HS) is a checklist to detect reasons for poor workplace performance and identify aligned support. Utilizing a multiple baseline design, this study evaluated the impact of PDC-HS indicated implementation support on the intervention fidelity of five paraeducators implementing six behavior intervention plans for students receiving special education services. The PDC-HS indicated that all paraeducators would benefit from behavior skills training and visuals of the plans, in addition to other specific supports for individual paraeducators (e.g., prompts, feedback). These implementation supports were effective in improving intervention fidelity for four paraeducators, whereas one paraeducator (across two students) did not respond to these supports. Changes in student outcomes (i.e., academic engagement, disruptive behavior) were inconsistent, suggesting that the behavior intervention plans may have needed to be revised. Usability data suggested that the PDC-HS and indicated supports were generally acceptable, but revisions may be warranted. The implications of this study for school-based implementation support research are discussed.     

The Random-Map Technique: Enhancing Mind-Mapping with a Conceptual Combination Technique to Foster Creative Potential

Although creativity techniques are highly recommended in working environments, their effects have been scarcely investigated. Two cognitive processes are often considered to foster creative potential and are, therefore, taken as a basis for creativity techniques: knowledge activation and conceptual combination. In this study, both processes were enhanced individually and jointly with an appropriate technique. Knowledge activation was fostered by the mind-map technique and conceptual combination by the random-input technique. The random-map technique evolved from merging these two techniques together. The two different techniques were tested in a 2 × 2 factorial experimental design with 80 participants. It was assumed that (a) both individual techniques would enhance creative potential when compared to the control group, and (b) the combined technique would lead to more creative potential than implementing the techniques individually. Results showed an increased creativity level of each of the individual techniques when compared to the control group. The combined creativity technique resulted in even higher creativity level when compared to both individual techniques. Thus, fostering different creativity processes jointly had an additive effect on creative potential.     

Getting to Best: Efficiency versus Optimality in Negotiation

Negotiation between two individuals is a common task that typically involves two goals: maximize individual outcomes and obtain an agreement. However, research on the simplest negotiation tasks demonstrates that although naive subjects can be induced to improve their performance, they are often no more likely to achieve fully optimal solutions. The present study tested the prediction that a decrease in a particular type of argumentative behavior, substantiation, would result in an increase in optimal agreements. As substantiation behaviors depend primarily on supplied content of the negotiation task, it was also predicted that substantiation behavior would be reduced by curtailing the content. A 2 × 2 experimental design was employed, where both negotiation tactics (list of tactics present versus absent) and negotiation task content (high versus low) were varied to determine the processes leading beyond solution improvement to solution optimality. Sixty‐one dyads engaged in a two‐party, four‐issue negotiation task. All negotiations were videotaped and analyzed. Although the list of negotiation tactics resulted in improved performance, only the content manipulation resulted in a significant increase in dyads achieving optimal solutions. Analyses of the coded protocols indicated that the key difference in achieving optimality was a reduction in persistent substantiation‐related operators (substantiation, along with single‐issue preferences and procedures) and an increase in a complex macro‐operator, multi‐issue offers that reduced the problem space, facilitating the search for optimality.     

Human temporal behavior and discrimination-reversal learning

The present study demonstrates that a relationship exists between individual differences in temporal behavior and individual differences in human discrimination-reversal learning behavior. When the results of performance on a time-estimation task employing the method of reproduction are compared with the results of acquisition performance on a complex form of discrimination-reversal learning task is can be demonstrated that underestimation of time is associated with faster learning and overestimation of time is associated with slower learning of the discrimination task. The experimental design was based on the historical fact that the Sechenov-Pavlov and Spence-Hull formulations assigned a primary role in learning to excitation and inhibition as intervening variables between the input of stimulation and output of response. The present study also used the tasks of time estimation and discrimination learning as dependent variables; and the concept that underestimation of time is associated with and underlying predominance of excitatory processes as a hypothetical construct. The conclusion was reached that one of the many theoretical processes which may be used to explain discrimination learning is the concept that acquisition of the correct response may be viewed as a function of the individual rates at which excitatory processes come to be conditioned to a predominance over existing inhibitory processes.     

Cognitive deficits in compulsive checkers: An exploratory study

Compulsive-checking behavior can be conceptualized as resulting, in part, from a memory failure. In order to determine if memory difficulties are associated with compulsive checking, the performance of college-student checkers were compared with the performance of non-checkers on a number of cognitive tasks hypothesized to be relevant to understanding checking behavior. Using the Checking and Cleaning subscales of the Maudsley Obsessional-Compulsive Inventory, four groups of subjects were identified: (1) Cleaning Checkers (N = 13); (2) Noncleaning Checkers (N = 13); (3) Cleaning Noncheckers (N = 13); and (4) Noncleaning Noncheckers (N = 15). It was hypothesized that the cognitive deficits studied would characterize individuals with cheeking compulsions, but not persons with non-checking compulsions (i.e. Cleaning Noncheckers) or normal controls (i.e. Noncleaning Noncheckers). Compulsive checkers were found to have a poorer memory for prior actions than non-checkers and were also found to underestimate their ability at distinguishing memories of real and imagined events, a process referred to as reality monitoring. Both of these deficits were specific to compulsive checkers and can be viewed as contributing to the likelihood that an individual will engage in checking behavior. If an individual has difficulty in recalling whether an intended action has been executed, they may be inclined to engage in checking behavior to insure the intended action is carried out. Similarly, a tendency to underestimate reality-monitoring ability could result in increased checking behavior as the individual attempts to reduce his/her uncertainty over whether a previous behavior actually occurred or merely was thought to occur. It is concluded that the study of cognitive deficits in compulsive checking is a potentially fruitful avenue for further inquiry.     

Optimizing the validity of personality assessments: The importance of aggregation and item content

The predictive validity of a psychological measure can be improved by minimizing measurement errors through increases in the length of the assessment (aggregation) and, for an assessment of finite length, by making use of objective strategies for choosing from all available component measures. Two prominent considerations in selecting individual measures to be aggregated involve standards of (a) item content (construct approach) and (b) item/criterion association (empirical approach). Personality trait scales of different lengths were assembled for this study in order to represent features of the construct and empirical methods of selection. It was observed that (a) although reliability and validity generally increased with test length, aggregation beyond a certain point can fail to be expedient; and (b) although the prediction performance of empirically derived measures initially surpassed that of construct based assessments, the superiority of the empirical scales did not generalize to trait criteria that were not used as a basis for item selection. The data are interpreted as providing support for a theory-based program of test development where substantive considerations involving item content play a major role. The findings are also viewed as encouragement for conventional conceptualizations about organized dimensions of behavior.     

Influence of self-concept on school adjustment among middle-school students

The view that children's self-concepts influence their school adjustment and behavior is widely accepted, but the strength of the influence and the contribution of specific self-concept dimensions to children's nonacademic performance in school are uncertain. This issue is important in view of evidence that behavior problems are acute among minority children in inner-city public schools. The purpose of the present study was to examine the relationship between specific self-concept dimensions and school adjustment in three areas: (a) general classroom behavior, (b) group participation, and (c) attitude toward authority, as assessed by teachers. The sample consisted of 142 American middle-school children who attended four inner-city public schools. The results showed that significant bivariate correlations existed between each self-concept dimension on the Tennessee Self-Concept Scale and the three behavioral domains studied. Stepwise multiple regression procedures also indicated strong individual and combined predictive power among the self-concept dimensions.     

Infants' Developing Sensitivity to Object Function: Attention to Features and Feature Correlations

In this research we examine the relation between executive function (EF) and false-belief (FB) understanding in young children. Specifically, we proposed that performance on tasks combining 2 executive demands: (a) working memory and (b) inhibitory control would be most predictive of performance on FB tasks. Forty-eight children between the ages of 3 and 5 years were given a battery of EF and FB measures. As predicted we found that performance on executive tasks that combined demands for memory and inhibitory control were highly predictive of performance on FB tasks. To further test the relation of EF and FB understanding we also introduced an experimental manipulation designed to reduce the working memory demands of FB tasks. This manipulation did not significantly improve performance. The results from this study provide support for the relation between EF and FB understanding, although the exact nature of the relation requires further clarification.     

奖赏通过增强信号监测提升认知控制

认知控制是动态的、过程性的认知调控, 涉及监测和控制两个过程。先前研究表明奖赏可以提升认知控制, 但是奖赏是通过增强信号监测来提升认知控制的, 还是作用于控制过程来提升认知控制的, 是一个有待研究的重要问题。在本研究中, 我们设计了三个实验来调查这一问题。实验1采用Stop-Signal任务验证奖赏是否能提升认知控制; 实验2通过改变反应规则将Stop-Signal任务信号监测加工分离出来, 探讨实验1中奖赏的提升作用是否来源于奖赏对信号监测的增强; 实验3通过操纵注意资源损耗分析, 考察注意资源分配对信号监测的促进作用。实验1结果显示, 个体能更快地根据奖赏信息做出抑制反应。实验2结果表明, 在信号监测任务中, 个体能更加快速地监测到与当前抑制状态相冲突且和奖赏相关的反应信号, 据此可认为奖赏通过增强对相关信号的监测, 有助于个体更早地启动奖赏刺激信号所对应的反应, 更高效地控制冲突。实验3结果说明, 当任务难度增大, 注意资源损耗, 奖赏相关信号的反应时和正确率仍优于无奖赏信号, 说明注意资源的分配可以调节相关信号的监测速度。总体来看, 本研究通过一系列实验表明, 以目标为导向的行为发生过程中, 奖赏能有效提升认知控制效率, 其关键机制在于通过注意资源分配增强相关信号的监测。     

Information-seeking behavior: exploring metacognitive control in pigeons

Metacognitive control may occur if an organism seeks additional information when the available information for solving a problem is inadequate. Such information-seeking behavior has been documented in primates, but evidence of analogous behavior is less convincing in non-primates. In our study, we adopted a novel methodological approach. We presented pigeons with visual discriminations of varying levels of difficulty, and on special testing trials, we gave the birds the opportunity of making the discrimination easier. We initially trained pigeons on a discrimination between same and different visual arrays, each containing 12 items (low difficulty), 4 items (intermediate difficulty), or 2 items (high difficulty). We later provided an “Information” button that the pigeons could peck to increase the number of items in the arrays, thereby making the discrimination easier, plus a “Go” button which, when pecked, simply allowed the pigeons to proceed to their final discriminative response. Critically, our pigeons’ choice of the “Information” button increased as the difficulty of the task increased. As well, some of our pigeons showed evidence of prompt and appropriate transfer of using the “Information” button to help them perform brand-new brightness and size discrimination tasks. Speculation as to the contents of pigeons’ private mental states may be unwarranted, but our pigeons did objectively exhibit the kind of complex, flexible, and adaptive information-seeking behavior that is deemed to be involved in metacognitive control.     

Gender and Hedging: From Sex Differences to Situated Practice

In a reanalysis of women's language, Holmes (1995) has argued that women's use of hedges expresses interpersonal warmth and not, as many researchers have maintained, linguistic tentativeness. It is typically men, she suggests, who employ hedges to convey imprecision and incertitude. In this study, we investigated the use of the hedges sort of and you know in a sample of South African students. Holmes's method of analysis was applied to hedging behavior in 52 dyadic conversations. The study consisted of a 2 (Speaker Gender: Male/Female) × 2 (Audience Gender: Male/Female) × 2 (Condition: Competitive/Noncompetitive) between-subjects experimental design. The results showed that contextual influences eclipsed the effects of gender; in fact, no main effects were found for speaker gender. Fewer hedges were deployed in the competitive condition than in the noncompetitive condition. Moreover, perhaps reflecting differences in social status, both sexes used sort of to express tentativeness more frequently when talking to male addressees. When speaking to female addressees, on the other hand, men deployed facilitative you know hedges more readily than women.     

有“新”同享：共有消费促进对不熟悉产品的选择*

共有消费是多位消费者共同参与并承担开销的一种常见的消费活动。本研究基于风险转移理论, 探究了消费情境(单独消费vs.共有消费)对不熟悉产品偏好的作用机理及边界条件。通过5个实验, 结果发现：相比于单独消费情境下的消费者, 在共有消费情境下的消费者更愿意尝试不熟悉的产品。原因在于共有消费情境会转移消费风险, 使得消费者对不熟悉产品的感知风险降低。但是该效应仅发生于产品风险较低的产品。同时, 当共有消费群体的关系较为疏远时, 该效应会消失甚至逆转。     

Self-efficacy and perceived control: cognitive mediators of pain tolerance

The cold-pressor task was used with 102 female undergraduates in 2 experiments to determine (a) whether self-efficacy has validity as a true causal determinant of behavior change or is a correlate of change that has already occurred and (b) how perceptions of control and self-efficacy interact to determine choice behavior, persistence, and the impact of an aversive stimulus. Results of Experiment 1 indicate that self-efficacy expectations affected performance beyond what would have been expected from past performance alone. Changes in self-efficacy expectations predicted changes in cold-pressor tolerance. These findings suggest that self-efficacy expectations can be causal determinants of behavior in an aversive situation. Results of Experiment 2 indicate that self-efficacy was separable from control and that performance was best if both high levels of perceived control and self-efficacy were present. These findings support the notion that self-efficacy expectations can mediate the desirability of providing control, in that those who benefit most from control are those who are most confident they can exercise it.     

Programming Life Histories : Creating Individual Differences By The Experimental Control Of Early Experiences

A homogeneous group of rats was exposed to 16 different patterns of experience in early life. These patterns consisted of the following four variables, combined in a 2 X 2 X 2 X 2 factorial design: (a) type of mother, (b) presence or absence of handling in infancy, (c) type of rearing environment preweaning, and (d) postweaning rearing environment. The 16 groups resulting there from may be conceived of as 16 different experimentally created individuals in which the variance among individuals is a function of known experiential inputs during early life. The nature of the design is such that any genetic contribution to individual differences is of a negligible amount. Twenty-three behavioral tests were administered to the 16 groups. Mean scores for each group on each test were intercorrelated and factor analyzed. Six factors were extracted, three of which could be clearly identified as "emotional reactivity," "consumption-elimination," and "field exploration." The results establish that stable and relatively permanent complex individual differences, of the sort often assumed to be genetically determined, can be generated by the appropriate manipulation of experiences during early life.