Age Differences and Similarities in Identity Distress Following the Katrina Disaster: Theoretical and Applied Implications of Erikson��s Theory

This study examined predictions from Erikson??s lifespan developmental theory in the context of severe disaster exposure. Relationships among traumatic stress exposure, age, identity distress, and posttraumatic stress (PTS) symptoms were explored among 401 individuals (age 18?C86, mean = 32.83, SD = 14.1 years) exposed to Hurricane Katrina. Traumatic exposure experiences were related to identity distress ratings, but results suggested that the association was a function of PTS symptoms. Identity distress was negatively correlated with age, but the association between identity distress and age was moderated by the level of PTS symptoms. Identity distress was associated with PTS symptoms even while controlling for general psychological symptoms. The utility of the identity distress construct and theoretical implications for identity research in the wake of disaster are discussed.     

Individual differences in response to automation: the five factor model of personality

This study examined the relationship of operator personality (Five Factor Model) and characteristics of the task and of adaptive automation (reliability and adaptiveness-whether the automation was well-matched to changes in task demand) to operator performance, workload, stress, and coping. This represents the first investigation of how the Five Factors relate to human response to automation. One-hundred-sixty-one college students experienced either 75% or 95% reliable automation provided with task loads of either two or four displays to be monitored. The task required threat detection in a simulated uninhabited ground vehicle (UGV) task. Task demand exerted the strongest influence on outcome variables. Automation characteristics did not directly impact workload or stress, but effects did emerge in the context of trait-task interactions that varied as a function of the dimension of workload and stress. The pattern of relationships of traits to dependent variables was generally moderated by at least one task factor. Neuroticism was related to poorer performance in some conditions, and all five traits were associated with at least one measure of workload and stress. Neuroticism generally predicted increased workload and stress and the other traits predicted decreased levels of these states. However, in the case of the relation of Extraversion and Agreeableness to Worry, Frustration, and avoidant coping, the direction of effects varied across task conditions. The results support incorporation of individual differences into automation design by identifying the relevant person characteristics and using the information to determine what functions to automate and the form and level of automation.     

Aberrant learning and memory in addiction

Over the past several years, drug addiction has increasingly been accepted to be a disease of the brain as opposed to simply being due to a lack of willpower or personality flaw. Exposure to addictive substances has been shown to create enduring changes in brain structure and function that are thought to underlie the transition to addiction. Specific genetic and environmental vulnerability factors also influence the impact of drugs of abuse on the brain and can enhance the likelihood of becoming an addict. Long-lasting alterations in brain function have been found in neural circuits that are known to be responsible for normal appetitive learning and memory processes and it has been hypothesized that drugs of abuse enhance positive learning and memory about the drug while inhibiting learning about the negative consequences of drug use. Therefore, the addict's behavior becomes increasingly directed towards obtaining and using drugs of abuse, while at the same time developing a poorer ability to stop using, even when the drug is less rewarding or interferes with functioning in other facets of life. In this review we will discuss the clinical evidence that addicted individuals have altered learning and memory and describe the possible neural substrates of this dysfunction. In addition, we will explore the pre-clinical evidence that drugs of abuse cause a progressive disorder of learning and memory, review the molecular and neurobiological changes that may underlie this disorder, determine the genetic and environmental factors that may increase vulnerability to addiction, and suggest potential strategies for treating addiction through manipulations of learning and memory.     

Developing equivalent Chinese and English scale‐point labels for rating scales used in survey research

Rating scales are the most frequently‐used response tool in surveys, and the scale levels are commonly described with words [verbal scale‐point labels (VSPL)]. In this study, Chinese VSPL were identified which employ five‐point scales that are psychometrically equivalent to English VSPL. In several bilingual studies, a total of 61 Chinese and 44 English items addressing intensity, frequency, and agreement rating modalities were tested. For each VSPL, three aspects were measured: position between minimum and maximum, familiarity, and appeal. The correspondence between pertinent Chinese and English words was also assessed. Based on these findings, we recommend specific VSPL that are best‐suited for achieving equivalence between Chinese and English in rating scales.     

Differing emotional sensitivities in the two factors of personal need for structure

The current project examines dispositional orientations toward positive or negative stimuli based on individual differences in personal need for structure (PNS). Although Neuberg and Newsom (1993) describe PNS as stemming from two sources of simple structure, desire for structure (DFS) and response to lack of structure (RLS), the two subscales are commonly combined. The current study found that high DFS (but not high RLS) was associated with a tendency to create more positive words in a word-fragment-completion task, generate more positive content in a story-completion task, and remember more positive words in a free-recall memory task. High-RLS (but not high-DFS) was associated with the opposite tendency (i.e., oriented toward negatives). Possible revisions to previous conclusions involving PNS are discussed.     

Evidence from convergent evolution and causal reasoning suggests that conclusions on human uniqueness may be premature

We agree with Vaesen that there is evidence for cognitive differences between humans and other primates. However, it is too early to draw firm conclusions about the uniqueness of the cognitive mechanisms underlying human tool use. Tests of causal understanding are in their infancy, as is the study of animals more distantly related to humans.     

Gender and autistic personality traits predict perspective-taking ability in typical adults

Adopting another’s visual perspective is exceedingly common and may underlie successful social interaction and empathizing with others. The individual differences responsible for success in perspective-taking, however, remain relatively undiscovered. We assessed whether gender and autistic personality traits in normal college student adults predict the ability to adopt another’s visual perspective. In a task differentially recruiting VPT-1 which involves following another’s line of sight, and VPT-2 which involves determining how another may perceive an object differently given their unique perspective (VPT-2), we found effects of both gender and autistic personality traits. Specifically, we demonstrate slowed VPT-2 but not VPT-1 performance in males and females with relatively high ASD-characteristic personality traits; this effect, however was markedly stronger in males than females. Results contribute to knowledge regarding ASD-related personality traits in the general population and the individual differences modulating perspective-taking abilities.     

Gender and Ethnic Differences in Smiling: A Yearbook Photographs Analysis from Kindergarten Through 12th Grade

Previous research has demonstrated that women smile more frequently and more broadly than men (Abel 2002; LaFrance et al. 2003). However, little research has focused specifically on the age at which this gender difference first emerges, and even less on the ethnic differences in smiling. This study attempts to identify the age when gender differences in smiling emerge among European American and African American children and teenagers. Additionally, we looked at the level of diversity within each school and its relation to smiling behavior. In total, 18,201 yearbook photographs ranging from kindergarten through 12th grade from 17 schools in the state of Michigan were evaluated for smile type: full smile, partial smile or no smile. Results suggest that a significant gender difference in smiling emerges around age 11. In contrast to other studies (e.g., LaFrance et al. 2003) and our own expectations, differences in smiling were found to be larger between African American boys and girls than between European American boys and girls. In addition, we found that African American girls’ smiling behavior did not differ as a function of school diversity while African American boys from predominantly African American schools displayed less smiling compared to those from mixed or predominantly European-American schools. This study provides insight into the emergence and progression of gender differences in smiling and indicates that gender as well as ethnicity and ethnic diversity are influential factors in smiling behavior.     

The Fabric of Thought: Priming Tactile Properties During Reading Influences Direct Tactile Perception

The present studies examined whether implied tactile properties during language comprehension influence subsequent direct tactile perception, and the specificity of any such effects. Participants read sentences that implicitly conveyed information regarding tactile properties (e.g., Grace tried on a pair of thick corduroy pants while shopping) that were either related or unrelated to fabrics and varied in implied texture (smooth, medium, rough). After reading each sentence, participants then performed an unrelated rating task during which they felt and rated the texture of a presented fabric. Results demonstrated that the texture properties implied in sentences influence direct tactile perception. Specifically, after reading about a smooth or rough texture, subsequent fabric ratings became notably smoother or rougher, respectively. However, we also show that there was some specificity to these effects: Fabric‐related sentences elicited more specific and interactive effects on subsequent ratings. Together, we demonstrate that under certain circumstances, language comprehension can prime tactile representations and affect direct tactile perception. Results are discussed with regard to the nature and scope of multimodal mental simulation during reading.     

Recognition of problem drinking among young adult prisoners

Alcohol is a preventable cause of illness, offending and other adversities worldwide. Prisoners are especially vulnerable. The aim of this study was to test the hypotheses that younger adult male prisoners are more likely to be hazardous drinkers than their older peers, but less likely to recognize this. The study cohort comprised 100 male prisoners aged 18-20 years and 157 aged 21 and over, who were interviewed and completed standard alcohol and drug questionnaires just after reception into prison. It was found that younger men were significantly more likely to be hazardous drinkers than their older peers but less likely to recognise this, even at scores on the Alcohol Use Disorders Identification Test (AUDIT) indicating dependency. They were also less likely to experience withdrawal symptoms, the main factor associated with problem drinking recognition at any age. Younger prisoners were less likely to be depressed, more likely to rate their social support as good and less likely to be dependent drug users. We conclude that reliance on younger prisoners to recognise their hazardous drinking would identify about one-fifth of them. With a lower likelihood of withdrawal symptoms than older men, they are probably still metabolizing alcohol more effectively. Given their similarities to older prisoners in terms of any previous imprisonment and likely personality disorder, formal screening for hazardous drinking might prevent decline into problem drug use, depression, reoffending, re-imprisonment, and social disconnection.