Effects of response bias and judgment framing on operator use of an automated aid in a target detection task

Automated diagnostic aids prone to false alarms often produce poorer human performance in signal detection tasks than equally reliable miss-prone aids. However, it is not yet clear whether this is attributable to differences in the perceptual salience of the automated aids' misses and false alarms or is the result of inherent differences in operators' cognitive responses to different forms of automation error. The present experiments therefore examined the effects of automation false alarms and misses on human performance under conditions in which the different forms of error were matched in their perceptual characteristics. Young adult participants performed a simulated baggage x-ray screening task while assisted by an automated diagnostic aid. Judgments from the aid were rendered as text messages presented at the onset of each trial, and every trial was followed by a second text message providing response feedback. Thus, misses and false alarms from the aid were matched for their perceptual salience. Experiment 1 found that even under these conditions, false alarms from the aid produced poorer human performance and engendered lower automation use than misses from the aid. Experiment 2, however, found that the asymmetry between misses and false alarms was reduced when the aid's false alarms were framed as neutral messages rather than explicit misjudgments. Results suggest that automation false alarms and misses differ in their inherent cognitive salience and imply that changes in diagnosis framing may allow designers to encourage better use of imperfectly reliable automated aids.     

High technology alliances in uncertain times: The case of bluetooth

Research into strategic alliances has traditionally focused on motivation and performance. More recently, network dynamics and alliances as complex and evolving arrangements are emerging areas for investigation. Thus far, little research has been undertaken that integrates these emerging themes in the context of the impact of deteriorating exogenous environments on network alliances. The ICT industry provides such a context, with the rapid deterioration of fortunes in the industry as a result of equity market moves since early 2000. This research looks at the Bluetooth consortium, a loosely framed network of firms involved in the development and commercialization of wireless technical applications for information technology based products. It finds that matters related to intellectual property ownership and inter-firm coordination in complex product development have been problematic, with the deterioration of environmental munificence driving a slowing of network investment and product development success.     

The Animal = Male Hypothesis: Children's and Adults' Beliefs About the Sex of Non–Sex-Specific Stuffed Animals

The Animal = Male Hypothesis, a variation of Silveira's People = Male Hypothesis (Silveira, 1980), was examined. In Study 1, children ages 3–10 years and adults told stories about a gender-neutral stuffed animal, in Study 2 children ages 5–6 years told stories about 3 neutral and 3 feminine animals, and in Study 3 children ages 5–7 years told stories about 2 neutral animals, observed an adult model use feminine pronouns to refer to an animal, then told stories about 2 more animals. Dependent variables were the pronouns participants used to refer to the animals and what sex they believed the animals were. Results showed strong evidence for an animal = male bias in all 3 studies among children and adults of both sexes on both dependent measures. There were few sex-related differences. The modeling intervention was not successful in reducing the bias.     

Perfectionism and Obsessive-Compulsive Symptoms

This study was designed to determine whether perfectionism, as assessed by the revised almost perfect scale (APS-R; R. B. Slaney, M. Mobley, J. Trippi, J. S. Ashby, & D. G. Johnson, 1996), was a significant predictor of obsessive-compulsive (OC) symptoms in a non-clinical sample of 308 university students. Perfectionistic discrepancy emerged as a general predictor of obsessive thought difficulties and compulsive checking behavior. Excessive concerns about making mistakes also emerged as a significant specific predictor of obsessive cognitive but not behavioral symptoms after other dimensions of perfectionism were controlled. An interaction effect indicated that students with high discrepancy but low standards were more likely to experience OC-related washing symptoms than other students. The general effects of perfectionism on OC symptoms, the specific effects of certain perfectionism dimensions over others, and other perfectionism research results, implicate APS-R discrepancy as a core dimension of maladaptive perfectionism and APS-R high standards as either benign or protective in the associations with OC symptoms.     

Perfectionism,Shame, and Depressive Symptoms

The authors examined the relationship between depression, maladaptive perfectionism, and shame. Regression analyses were used to replicate a model in which maladaptive perfectionism was negatively associated with self‐esteem and positively associated with symptoms of depression, with self‐esteem mediating the effects of maladaptive perfectionism on depressive symptoms. Additional models showed that the path from maladaptive perfectionism to depression was partially mediated by shame, although these paths differed for men and women.     

Multicultural Counseling: A 10‐Year Content Analysis of the Journal of Counseling & Development

The emphasis on multicultural counseling during the past 20 years has influenced the increase in scholarly publications on this topic. The authors report the findings of a content analysis of 102 multicultural‐centered articles. Journal of Counseling & Development issues spanning 1990–2001 were evaluated. Findings are reported for methodology, populations discussed, applied settings, and authors' roles and institutional affiliations. Findings indicate that there has been an increase of multicultural‐focused publications since 1990 and that publications are more exploratory and developmental rather than pathology‐oriented.     

A comparison of semantic and syntactic event related potentials generated by children and adults

The present study employs event related potentials (ERPs) to verify the utility of using electrophysiological measures to study developmental questions within the field of language comprehension. Established ERP components (N400 and P600) that reflect semantic and syntactic processing were examined. Fifteen adults and 14 children (ages 8-13) processed spoken stimuli containing either semantic or syntactic anomalies. Adult participants showed a significant N400 in response to semantic anomalies and P600 components in response to syntactic anomalies. Children also show evidence of both ERP components. The children's N400 component differed from the adults' in scalp location, latency, and component amplitude. The children's P600 was remarkably similar to the P600 shown by adults in scalp location, component amplitude, and component latency. Theoretical implication for theories of language comprehension in adults and children will be discussed.     

Environmental factors associated with a spectrum of neurodevelopmental deficits

A number of environmental agents have been shown to demonstrate neurotoxic effects either in human or laboratory animal studies. Critical windows of vulnerability to the effects of these agents occur both pre- and postnatally. The nervous system is relatively unique in that different parts are responsible for different functional domains, and these develop at different times (e.g., motor control, sensory, intelligence and attention). In addition, the many cell types in the brain have different windows of vulnerability with varying sensitivities to environmental agents. This review focuses on two environmental agents, lead and methylmercury, to illustrate the neurobehavioral and cognitive effects that can result from early life exposures. Special attention is paid to distinguishing between the effects detected following episodes of poisoning and those detected following lower dose exposures. Perinatal and childhood exposure to high doses of lead results in encephalopathy and convulsions. Lower-dose lead exposures have been associated with impairment in intellectual function and attention. At high levels of prenatal exposure, methylmercury produces mental retardation, cerebral palsy and visual and auditory deficits in children of exposed mothers. At lower levels of methylmercury exposure, the effects in children have been more subtle. Other environmental neurotoxicants that have been shown to produce developmental neurotoxicity include polychlorinated biphenyls (PCBs), dioxins, pesticides, ionizing radiation, environmental tobacco smoke, and maternal use of alcohol, tobacco, marijuana and cocaine. Exposure to environmental agents with neurotoxic effects can result in a spectrum of adverse outcomes from severe mental retardation and disability to more subtle changes in function depending on the timing and dose of the chemical agent.