David A. Gansler

Psychometric Properties of the Rosenberg Self-Esteem Scale: Overall and Across Demographic Groups Living Within the United States

The purpose of this study was twofold: (a) to evaluate the scaling assumptions and component structure of and present normative data for the Rosenberg Self-Esteem Scale (RSES) using a sample of US adults (N = 503), both overall and across demographic subgroups and (b) to provide new data regarding the relationship between the two RSES subcomponents of self-competence (SC) and self-liking (SL), and other demographic and clinical variables. As hypothesized, all psychometric tests supported the underlying structure of the RSES. Overall RSES scores varied significantly across age, racial and ethnic, education, employment status, income, and marital status groups. Furthermore, differences between SC and SL were also found across groups differing in gender, age, employment status, and marital status groups. The implications and limitations of this study are discussed, with an emphasis on clinical relevance.

Five Validation Experiments of the Test of Memory Malingering (TOMM).

The Test of Memory Malingering (TOMM; T. N. Tombaugh, 1996) is a newly developed visual recognition test that uses pictures of common objects as stimuli. Prior normative research with community-dwelling adults and neurologically impaired patients has shown that the TOMM possesses a high degree of specificity and is not affected by demographic variables such as age and education. The current series of 5 integrated experiments was designed to provide important validation data. Converging evidence from all studies showed that scores on the TOMM are able to detect when an individual is not putting forth maximum effort. Overall, the TOMMs high levels of sensitivity and specificity suggest that it has high promise as a clinical test for detecting malingering of memory impairments.

Comparisons of Korsakoff and Non-Korsakoff Alcoholics on Neuropsychological Tests of Prefrontal Brain Functioning

BACKGROUND Evidence suggests that alcoholics exhibit particular deficits in brain systems involving the prefrontal cortex, but few studies have directly compared patients with and without Korsakoffs syndrome on measures of prefrontal integrity. METHODS Neuropsychological tasks sensitive to dysfunction of frontal brain systems were administered, along with standard tests of memory, intelligence, and visuospatial abilities, to 50 healthy, abstinent, nonamnesic alcoholics, 6 patients with alcohol-induced persisting amnestic disorder (Korsakoffs syndrome), 6 brain-damaged controls with right hemisphere lesions, and 82 healthy nonalcoholic controls. RESULTS Korsakoff patients were impaired on tests of memory, fluency, cognitive flexibility, and perseveration. Non-Korsakoff alcoholics showed some frontal system deficits as well, but these were mild. Cognitive deficits in non-Korsakoff alcoholics were related to age, duration of abstinence (less than 5 years), duration of abuse (more than 20 years), and amount of alcohol intake. CONCLUSIONS Abnormalities of frontal system functioning are most apparent in alcoholics with Korsakoffs syndrome. In non-Korsakoff alcoholics, factors contributing to cognitive performance are age, duration of abstinence, duration of alcoholism, and amount of alcohol consumed.

Attentional focus and causal attributions in social phobia: Implications from social psychology

Abstract This article reviews the social psychological literature on attentional focus and causal attributions as they apply to social phobia. Excessive self-focused attention is increased by physiological arousal, interferes with task performance under some conditions, increases the probability of internal attributions, and intensifies emotional reactions. Social anxiety is also associated with a reversal of the self-serving bias for causal attributions. Implications of these findings for the maintenance and treatment of social phobia are discussed.

Cortical morphology of visual creativity

BACKGROUND AND OBJECTIVE The volume of cortical tissue devoted to a function often influences the quality of a persons ability to perform that function. Up to now only white matter correlates of creativity have been reported, and we wanted to learn if the creative visuospatial performance on the figural Torrance Test of Creative Thinking (TTCT) is associated with measurements of cerebral gray matter volume in the regions of the brain that are thought to be important in divergent reasoning and visuospatial processing. METHODS Eighteen healthy college educated men (mean age=40.78; 15 right-handers) were recruited (via advertisement) as participants. High-resolution MRI scans were acquired on a 1.5T MRI scanner. Voxel-based morphometry regression analyses of TTCT to cortical volume were restrained within the anatomic regions identified. RESULTS One significant positive focus of association with TTCT emerged within the right parietal lobe gray matter (MNI coordinates: 44, -24, 63; 276 voxels). CONCLUSIONS Based on theories of parietal lobe function and the requirements of the TTCT, the area observed may be related due to its dominant role in global aspects of attention and visuospatial processing including the capacity for manipulating spatial representations.

Personalized versus standard role plays in the assessment of depressed patients' social skill

Chronically depressed outpatients participated in a study of the role-play assessment of social skill. Patients role-played a series of standard situations typical of those employed in social-skills research and additional scenes drawn from critical situations in their personal lives. These “personalized” role-play situations were perceived as more relevant by patients and resulted in more discomfort and less skillful interpersonal behavior than standard scenes. Behavioral measures derived from personalized role plays were also found to be more strongly related to measures of depression than the same measures derived from the standard role-play scenes. Implications of these findings for the role-play assessment of social skill are discussed.

Hemispheric connectivity and the visual-spatial divergent-thinking component of creativity

BACKGROUND/HYPOTHESIS Divergent thinking is an important measurable component of creativity. This study tested the postulate that divergent thinking depends on large distributed inter- and intra-hemispheric networks. Although preliminary evidence supports increased brain connectivity during divergent thinking, the neural correlates of this characteristic have not been entirely specified. It was predicted that visuospatial divergent thinking would correlate with right hemisphere white matter volume (WMV) and with the size of the corpus callosum (CC). METHODS Volumetric magnetic resonance imaging (MRI) analyses and the Torrance Tests of Creative Thinking (TTCT) were completed among 21 normal right-handed adult males. RESULTS TTCT scores correlated negatively with the size of the CC and were not correlated with right or, incidentally, left WMV. CONCLUSIONS Although these results were not predicted, perhaps, as suggested by Bogen and Bogen (1988), decreased callosal connectivity enhances hemispheric specialization, which benefits the incubation of ideas that are critical for the divergent-thinking component of creativity, and it is the momentary inhibition of this hemispheric independence that accounts for the illumination that is part of the innovative stage of creativity. Alternatively, decreased CC size may reflect more selective developmental pruning, thereby facilitating efficient functional connectivity.

Prefrontal regional correlates of self-control in male psychiatric patients: Impulsivity facets and aggression

Investigating the organization of trait aggression and impulsivity in the prefrontal cortex (PFC) advances our understanding of the neuropsychobiology of self-control. While the orbital aspect of the PFC (OFC) has received attention, there is reason to believe the lateral aspect is also relevant. In the current study using magnetic resonance imaging, gray matter volumes in lateral PFC (LPFC) were derived in a heterogeneous male psychiatric sample (N=36) in which OFC volumes had previously been reported. In an analysis using self-report measures of trait impulsivity and aggression, the left LPFC accounted for significant variance in attentional aspects of impulsivity (13%) and aggression (10%) but not motor aspects of impulsivity, as hypothesized. The OFC was associated with motor impulsivity (left-20%; right-14%) and was also more robustly associated with aggression (left-36%; right-16%). A social/emotional information processing model was explored, based upon whether the LPFC or the OFC depended upon one another for their association to trait aggression and impulsivity. It was demonstrated that association of the LPFC to both aggression and attentional impulsivity depended upon the OFC, while the converse was not supported. The LPFC appears relevant to the higher-order aspects of a cortical self-control network, and that relevance is dependent upon the robust contribution of the OFC.

Frontal Brain Dysfunction in Alcoholism with and without Antisocial Personality Disorder

Alcoholism and antisocial personality disorder (ASPD) often are comorbid conditions. Alcoholics, as well as nonalcoholic individuals with ASPD, exhibit behaviors associated with prefrontal brain dysfunction such as increased impulsivity and emotional dysregulation. These behaviors can influence drinking motives and patterns of consumption. Because few studies have investigated the combined association between ASPD and alcoholism on neuropsychological functioning, this study examined the influence of ASPD symptoms and alcoholism on tests sensitive to frontal brain deficits. The participants were 345 men and women. Of them, 144 were abstinent alcoholics (66 with ASPD symptoms), and 201 were nonalcoholic control participants (24 with ASPD symptoms). Performances among the groups were examined with Trails A and B tests, the Wisconsin Card Sorting Test, the Controlled Oral Word Association Test, the Ruff Figural Fluency Test, and Performance subtests of the Wechsler Adult Intelligence Scale. Measures of affect also were obtained. Multiple regression analyses showed that alcoholism, specific drinking variables (amount and duration of heavy drinking), and ASPD were significant predictors of frontal system and affective abnormalities. These effects were different for men and women. The findings suggested that the combination of alcoholism and ASPD leads to greater deficits than the sum of each.

Comparing alternative metrics to assess performance on the Iowa Gambling Task

This study was conducted in response to calls to develop Iowa Gambling Task (IGT) metrics reflecting more homogeneous aspects of decision making, as well as to add to the literature on reliability and validity of the instrument. The conventional IGT metric, advantageous minus disadvantageous deck selections, was compared to alternatives in which Decks B and C or the first 40 selections were eliminated. We correlated these alternative metrics with performance on other neuropsychological tests in 214 healthy adults, and we compared participant subgroups stratified by health status (214 healthy and 43 unhealthy participants). Internal consistency of the IGT was low and could explain the modest levels of construct validity observed. Alternative metrics, especially Deck D minus Deck A selections (D–A), did improve construct and criterion validity of the IGT. They also showed different patterns of correlation with other neuropsychological measures and might enhance the clinical and scientific usefulness of this test. Future research with an eye to modifying the paradigm and/or administration procedures to increase intertrial consistency might also give a needed boost to construct and criterion validity.