Comparison of polygraph data obtained from individuals involved in mock crimes and actual criminal investigations

In a preliminary attempt to determine the generalizability of data from laboratory mock-crime studies, the authors examined the similarities and differences among the cardiovascular, electrodermal, and respiration responses of deceptive and nondeceptive individuals elicited to crime-relevant and crime-irrelevant questions. Participants in the laboratory group were randomly assigned to nondeceptive (n = 28) or deceptive (n = 27) treatment groups, and a mock-crime scenario was used. The field participants were confirmed nondeceptive (n = 28) or deceptive (n = 39) criminal suspects who underwent polygraph examinations between 1993 and 1997. The results indicated that there were salient differences between field and similarly obtained laboratory polygraph response measures. However, accuracy of laboratory participants' classifications using logistic regression analysis was not significantly different from field participants' classification accuracy.     

Contextual modulation of N400 amplitude to lexically ambiguous words

Though much is known about the N400 component, an event-related EEG potential that is sensitive to semantic manipulations, it is unclear whether modulations of N400 amplitude reflect automatic processing, controlled processing, or both. We examined this issue using a semantic judgment task that manipulated local and global contextual cues. Word triplets (prime-noun-target, e.g., finance-bank-money) were sequentially presented on a computer screen (500 ms duration, 1000 ms stimulus onset asynchrony), in which the second word was a homograph. The first word (prime) created a neutral-, dominant-meaning- or subordinate-meaning-biased "global context," and the third word (target) created a dominant- or subordinate-biased "local context" that was either congruent or incongruent with the "global context" established by the first prime word. Participants were instructed to read all three words but to decide only whether the second and third words were semantically related. Event-related potentials (ERPs), specifically the N400, were recorded to the third terminal word. N400 amplitudes evoked by dominant meaning-related third words incongruent with the globally biased subordinate context (e.g., river-bridge-money) were significantly more negative than dominant endings in neutral contexts (e.g., taxi-bank-money), but not different from unrelated filler triplets. In addition, there was some indication that left hemisphere, temporal-parietal electrode sites were associated with greater N400 negativity for dominant targets in conflicting subordinate global contexts than homologous right hemisphere electrode sites, the latter of which showed significant activation to subordinate meanings in cooperating contexts. Thus, N400 amplitude was more affected by global than local context suggesting that controlled processes may take priority over automatic processes in modulating N400 amplitude, especially for left hemisphere electrode sites.     

Counting your blessings: Positive memories among grateful persons

We conducted two studies investigating the relationship of gratitude to autobiographical memory of positive and negative life events. Gratitude was assessed with an attitudinal measure and college students were asked to recall both positive and negative events from their past. In both studies, a significant positive relationship was found between trait gratitude and a positive memory bias. In Study 2 it was found that gratitude still reliably predicted positive memory bias after controlling for depression. Further, it was found that a positive intrusive memory bias was associated with gratitude in both studies. Thus, an important component of gratitude may be an enhanced tendency to recall positive events from one's life.     

A baldrige process for ethics?

In this paper we describe and explore a management tool called the Caux Round Table Self-Assessment and Improvement Process (SAIP). Based upon the Caux Round Table Principles for Business — a stakeholder-based, transcultural statement of business values — the SAIP assists executives with the task of shaping their firm’s conscience through an organizational self-appraisal process. This process is modeled after the self-assessment methodology pioneered by the Malcolm Baldrige National Quality Award Program. After briefly describing the SAIP, we address three topics. First, we examine similarities and differences between the Baldrige approach to corporate self-assessment and the self-assessment process utilized within the SAIP. Second, we report initial findings from two beta tests of the tool. These illustrate both the SAIP’s ability to help organizations strengthen their commitment to ethically responsible conduct, and some of the tool’s limitations. Third, we briefly analyze various dimensions of the business scandals of 2001–2002 (Enron, WorldCom, Tyco, etc.) in light of the ethical requirements articulated with the SAIP. This analysis suggests that the SAIP can help link the current concerns of stakeholders — for example, investors and the general public — to organizational practice, by providing companies with a practical way to incorporate critical lessons from these unfortunate events. An earlier version of this paper was presented at the “Ethics and Social Responsibility in Engineering and Technology” meeting, New Orleans, 2003.     

Internet-based intervention for mental health and substance use problems in disaster-affected populations: a pilot feasibility study

Early interventions that reduce the societal burden of mental health problems in the aftermath of disasters and mass violence have the potential to be enormously valuable. Internet-based interventions can be delivered widely, efficiently, and at low cost and as such are of particular interest. We describe the development and feasibility analysis of an Internet-delivered intervention designed to address mental health and substance-related reactions in disaster-affected populations. Participants (n = 285) were recruited from a cohort of New York City-area residents that had been followed longitudinally in epidemiological research initiated 6 months after the terrorist attacks of September 11, 2001. The intervention consisted of 7 modules: posttraumatic stress/panic, depression, generalized anxiety, alcohol use, marijuana use, drug use, and cigarette use. Feasibility data were promising and suggest the need for further evaluation.     

The structure of childhood obsessions and compulsions: dimensions in an outpatient sample

While obsessive-compulsive disorder (OCD) is defined as a unitary condition, prior research has identified meaningful and distinct symptom dimensions in adult samples. In contrast, there have been no investigations of symptom dimensions in samples of children diagnosed with OCD. The present study sought to address this gap. Children diagnosed with OCD (n = 137) were administered the Children's Yale-Brown Obsessive-Compulsive Scale symptom checklist and severity index. Symptoms were analyzed using principal components analysis. As with adult samples, four factors were identified from the checklist. However, these four factors (compulsions, sexual/aggressive obsessions, superstitions, and hoarding/ordering/somatic concerns) were different in content from adult studies. Further, several symptoms significantly contributed to more than one dimension. Each dimension was significantly correlated with scores from the severity index, with the exception of the obsession score with the hoarding/ordering/somatic concerns factor. Results suggest that there are distinct dimensions of symptoms in childhood OCD, but that these dimensions do not correspond to those identified in adults. Instead, it appears that some factors share variance, and the dimensions themselves are separated based upon developmental trajectories. The dimensions examined may be useful in future treatment studies using pharmacological and/or behavioral interventions.     

Rate-decreasing effects of the atypical neuroleptic risperidone attenuated by conditions of reinforcement in a woman with mental retardation

Effects of two doses of risperidone on the performance of a matching task under tangible reinforcement and nonreinforcement conditions were measured in a woman with mental retardation. In both conditions, time to complete the task increased and response rates decreased under two doses of risperidone. Accuracy was generally unchanged. These changes were much smaller in the tangible reinforcement condition; thus, reinforcement seemed to protect performance from the rate-decreasing effects of risperidone.     

Scientific creativity as constrained stochastic behavior: the integration of product,person, and process perspectives

Psychologists have primarily investigated scientific creativity from 2 contrasting in vitro perspectives: correlational studies of the creative person and experimental studies of the creative process. Here the same phenomenon is scrutinized using a 3rd, in vivo perspective, namely, the actual creative products that emerge from individual scientific careers and communities of creative scientists. This behavioral analysis supports the inference that scientific creativity constitutes a form of constrained stochastic behavior. That is, it can be accurately modeled as a quasi-random combinatorial process. Key findings from both correlational and experimental research traditions corroborate this conclusion. The author closes the article by arguing that all 3 perspectives--regarding the product, person, and process--must be integrated into a unified view of scientific creativity.     

Measuring the speed of the conscious components of recognition memory: remembering is faster than knowing

Three experiments investigated response times (RTs) for remember and know responses in recognition memory. RTs to remember responses were faster than RTs to know responses, regardless of whether the remember-know decision was preceded by an old/new decision (two-step procedure) or was made without a preceding old/new decision (one-step procedure). The finding of faster RTs for R responses was also found when remember-know decisions were made retrospectively. These findings are inconsistent with dual-process models of recognition memory, which predict that recollection is slower and more effortful than familiarity. Word frequency did not influence RTs, but remember responses were faster for words than for nonwords. We argue that the difference in RTs to remember and know responses reflects the time taken to make old/new decisions on the basis of the type of information activated at test.