Games teams play: A method for investigating team coordination and performance

Teams are playing an increasingly important role in the workplace. However, reviews of the team performance literature have suggested that there are serious deficiencies in our understanding of team processes and performance (e.g., Dyer, 1984). These difficulties may be attributable, in part, to the lack of laboratory methodologies to investigate team performance. This paper describes the use of low-fidelity simulations as a potentially useful paradigm for researching team coordination and performance. This paradigm is advantageous in that it offers relatively high levels of experimental control and task representation at a low cost.     

Complexity of the Universal Theory of Modal Algebras

Studia Logica - We apply the theory of partial algebras, following the approach developed by Van Alten (Theor Comput Sci 501:82–92, 2013), to the study of the computational...     

Rats can make relative perceptual judgments about sequential stimuli

In their natural environment, animals often make decisions based on abstract relationships among multiple stimulus representations. Humans and other primates can determine not only whether a sensory stimulus differs from a remembered sensory representation, but also how they differ along a particular dimension. However, much remains unknown about how such relative comparisons are made, and which species share this capacity, in part because most studies of sensory-guided decision making have utilized instrumental tasks in which choices are based on very simple stimulus-response associations. Here, we used a two-stimulus-interval discrimination task to test whether rats could determine how two sequentially presented stimuli were related along the dimension of odor quality (i.e., what the stimulus smells like). At a central port, rats sampled and compared two odor mixtures that consisted of spearmint and caraway in different ratios, separated by a 2-4-s interval, and then entered the left or right reward port. Water was delivered at the left if the first mixture consisted of more spearmint than the second did, and at the right otherwise. We found that the difference in mixture ratio predicted choice accuracy. Control experiments suggest that rats were indeed basing their choices on a comparison of odor quality across mixtures and were not using associative strategies. This study is the first demonstration of the use of a sequential "more than versus less than" rule in rats and provides a well-controlled paradigm for studying abstract comparisons in a rodent model system.     

On how adults identify the orientation of a shape

It is generally assumed that the orientation of a shape is judged only by identifying the location of a particular feature. In contrast, it is argued here that the basis of orientation judgments depends on the task; this proposal is examined for judgments of upside down and sideways. Pictures of mono-oriented objects were presentedone at a time, and adults identified the orientations of each in a RT paradigm. One condition presented successively upright and upside-down pictures or upright and sideways pictures. Another condition presented successively upside-down and sideways pictures. As predicted, the time to identify orientation was longer for the condition presenting two nonuprights, because specific identifications of upside down and sideways were required, whereas the other condition required only that uprightness be distinguished from nonuprightness. The notion that the nature of a judgment of shape orientation depends on the contrasts provided by the task has implications for theory and experimental design that are discussed for both realistic and geometric shapes.     

Levels in the identifying of orientation by preschool children

A new approach to understanding the perception of orientation proposes that the first level in the processing of orientation information results in perceiving whether a shape is upright or nonupright; nonupright orientations are not distinguished from each other. As predicted, children of 3 and 4 years discriminated upright from nonupright pictures more readily than they discriminated the nonuprights (upside down and sideways) from each other. The angular differences between the pairs of discriminanda (whether 90 or 180°) had no effect on performance. the difficulty of distinguishing between nonuprights could not be attributed simply to a lack of attention to the dimension of orientation. The theory appears to have considerable generality, and provides a basis for understanding (1) perception of the orientation of both realistic and geometric shapes, and (2) similarities in orientation perception observed between children and adults.     

Observed Attachment and Self-Report Affect Within Romantic Relationships

Adult attachment provides unique insights that help researchers and clinicians understand the complexities of individuals and relationships. In romantic relationships, individual attachment can explain partners' abilities for closeness and autonomy as well as how they experience affect within the relationship. These affective experiences during couple interactions have been shown to influence both proximal and distal relationship outcomes. Thus, the authors explore the impact of partners' observed attachment behaviors—coded using the AABQ—on continuous reports of their affective experiences during both difficult and positive marital conversations. Variables examining couple affective negativity and flexibility were developed using state space grids, and data were analyzed using GridWare. Results showed that observed female attachment behaviors significantly impacted a couple's affective experiences of negativity and flexibility during conversations, while there were no significant associations between male observed attachment behaviors and the couple affective experience. Clinical implications and suggestions for future research are discussed.     

Exploring Correlates and Predictors of Stress in Parents of Children Who are Deaf: Implications of Perceived Social Support and Mode of Communication

Parenting stress has been linked to negative outcomes for both parents and children, including poor attachment, behavior problems, less positive parent–child interactions, and marital dissatisfaction. Given that parents of special needs children often experience excess stress, they may be susceptible to negative outcomes, thus investigations of protective factors are needed. We explored relationships among parenting stress, social support, mode of communication, and child cochlear implant status in parents rearing a deaf child or child with hearing loss. Findings of our exploratory study indicated that parents of children who use sign language only reported more support, while parents of children who use total communication exhibited less self-reported stress. Also, parents with children who use implants did not differ on any of the measures compared to parents of children without implants. Additional findings suggested that higher levels of perceived social support corresponded with lower stress among parents, however, receipt of supportive behaviors did not correlate significantly with parenting stress. In an overall model, perceived social support and mode of communication were significant predictors of parenting stress. Finally, enacted support predicted significantly life satisfaction in parents. Implications and limitations, as well as suggestions for future research, will also be offered.     

Social support as a buffer of anxiety: An experimental analogue

The anxiety-buffering role of social support was investigated using an experimental analogue. Undergraduate females (N = 75) were assigned to one of three conditions: tested alone, tested with a stranger, or tested with a friend. Subjects first completed the Perceived Social Support Scale, State-Trait Anxiety Inventory, and a palmar sweat measure. They were then told that after a 5-min waiting period they would be asked to answer a number of personal questions while being videotaped. Subjects accompanied by a friend showed a smaller increase in state anxiety than the other two groups. There was no group difference on the palmar sweat measure. No significant relationship between perceived social support and changes in state anxiety was found.     

Perceived organizational support and perceived external prestige: predicting organizational attachment for university faculty, staff, and administrators

The present article introduces a social-exchange model of organizational attachment incorporating both direct exchange and indirect exchange. Participants were 325 university employees. The present results indicated that perceived organizational support (POS) and perceived external prestige (PEP) both contribute to organizational attachment. Further, the results showed that the extent to which POS and PEP are related to organizational attachment is moderated by occupational proxies of cosmopolitan-local role orientation. POS was more strongly related to the affective commitment and withdrawal cognitions of staff and administrators than to those of faculty. PEP was more strongly related to affective commitment and withdrawal cognitions of university faculty than to those of university staff and administrators. The authors discussed the need to incorporate relational variables such as PEP into other social-exchange frameworks.