Lack of coherence and divergent thinking: Two sides of the same coin in artistic talent?

The aim of this study was to identify some of the underlying cognitive components of artistic talent. The participants in this study were an artistically gifted group of young adults, and a group of controls with no such talent but matched on intelligence. Two components were investigated, one was a preference for local over global processing and others were measures of divergent thinking. The results supported the hypothesis that talented artists might, in contrast to others, show a distinctive cognitive style which may be linked to divergent thinking.     

Learning as a function of coordination bias: building upon pre-practice behaviours

Instructions and demonstrations were manipulated to make pre-practice behaviours explicit and inform participants how to build-upon these to perform a novel bi-manual movement. In Experiment 1, participants who could perform only in- and anti-phase movements were studied, whereas in Experiment 2, individuals who could perform additional movements were tested. Zanone and Kelso (Journal of Experimental Psychology: Human Perception and Performance 23 (1997) 1454) predicted differential learning progressions as a result of initial ability. Instruction promoting gradual adaptation of an existing skill would be more likely to benefit participants in Experiment 2. Irrespective of initial ability, participants did not benefit from instruction. Instructions that built-upon the in-phase pattern were particularly detrimental to acquisition, as compared to withholding instruction and providing only feedback. Instructional effects were related to decreased within-trial variability early in practice due to avoidance of certain movements and a complement bias to another undesirable one. It was suggested that trying to implement instructions, especially for the participants in Experiment 2, caused individuals to exert control over processes better controlled by lower, less cognitive levels of the motor system.     

Western scrub-jays (<Emphasis Type="Italic">Aphelocoma californica</Emphasis>) use cognitive strategies to protect their caches from thieving conspecifics

Food caching birds hide food and recover the caches when supplies are less abundant. There is, however, a risk to this strategy because the caches are susceptible to pilfering by others. Corvids use a number of different strategies to reduce possible cache theft. Scrub-jays with previous experience of pilfering other's caches cached worms in two visuospatially distinct caching trays either in private or in the presence of a conspecific. When these storers had cached in private, they subsequently observed both trays out of reach of a conspecific. When these storers had cached in the presence of a conspecific, they subsequently watched the observer pilfering from one of the trays while the other tray was placed in full view, but out of reach. The storers were then allowed to recover the remaining caches 3 h later. Jays cached more worms when they were observed during caching. At the time of recovery, they re-cached more than if they had cached in private, selectively re-caching outside of the trays in sites unbeknown to potential thieves. In addition, after a single pilfering trial, the jays switched their recovery strategy from predominantly checking their caches (i.e. returning to a cache site to see whether the food remained there) to predominantly eating them. Re-caching remained constant across the three trials. These results suggest that scrub-jays use flexible, cognitive caching and recovery strategies to aid in reducing potential future pilfering of caches by conspecifics.     

Deviant peer affiliations,crime and substance use: a fixed effects regression analysis

The present study was designed to assess the influence of deviant peer affiliations on crime and substance use in adolescence/young adulthood. Data were used from a 21-year longitudinal study of health, development, and adjustment of a birth cohort of 1,265 New Zealand children. Annual assessments of deviant peer affiliations were obtained for the period from age 14–21 years, together with measures of psychosocial outcomes including, violent crime, property crime, alcohol abuse, cannabis abuse, and nicotine dependence. Affiliating with deviant peers was found to be significantly associated with each of these outcomes (p < .0001). Statistical control for confounding by both fixed and time dynamic factors reduced the strength of association between deviant peer affiliations and outcome measures. Nevertheless, deviant peer affiliations remained significantly associated (p < .0001) with all outcomes. For violent/property crime, cannabis and alcohol abuse there was significant evidence of age-related variation in the strength of association with deviant peer affiliations, with deviant peer affiliations having greater influence on younger participants (14–15 years) than older participants (20–21 years). These results suggest that deviant peer affiliations are associated with increased rates of a range of adjustment problems in adolescence/young adulthood with deviant peer affiliations being most influential at younger ages.     

Impaired visual and odor recognition memory span in patients with hippocampal lesions

In a recent study, rats with hippocampal lesions performed as well as did unoperated rats on an olfactory memory span task, performing ~80% correct even when the span length reached 24 odors. This finding seems potentially at odds with demonstrations that memory-impaired patients typically fail tasks in which large amounts of information must be retained. Accordingly, we have assessed recognition memory span performance for line drawings of objects, designs, and odors in amnesic patients with damage thought to be limited to the hippocampal region. The patients were impaired on all three tasks. We consider possible explanations for the difference between the findings for humans and rats, including the fact that olfactory function is particularly well-developed in rodents.     

Immoral,Incompetent, and Lacking Warmth: How Stereotypes of Teenage Fathers Compare to Those of Other Parents

Sex Roles - Constructions of teenage fathers largely portray them as absent, criminal, and violent (Johansson and Hammarén 2014; Kiselica and Kiselica 2014), with their identity tied to the...     

When Seeing should not be Believing: Photographs,Credit Cards and Fraud

Identity cards often include a photograph of the bearer in an attempt to prevent fraudulent use or personation. In the U.K. some credit card companies have recently introduced photo-credit cards and the government is currently considering the introduction of a new driving licence including the bearer's photograph. However, the widely held belief that the inclusion of photographs will reduce or prevent fraudulent use has never been tested. This paper describes a field study designed to examine the utility of photo-credit cards by assessing the accuracy with which supermarket cashiers could identify whether the photographs on credit cards depicted the person tendering them. The results demonstrate that the task of matching the photograph to the shopper is much more difficult than might be expected, and that even under optimized conditions, performance is poor. It is concluded that the introduction of photographs on credit cards would have little effect on the detection of fraud at the point of sale. © 1997 by John Wiley & Sons, Ltd.     

A taxometric analysis of the Psychopathy Checklist: Screening Version (PCL:SV): further evidence of dimensionality

A taxometric analysis of the Psychopathy Checklist: Screening Version (PCL:SV; S. D. Hart, D. N. Cox, & R. D. Hare, 1995) was performed on a group of 2,250 male and female forensic/psychiatric patients and jail/prison inmates. The 4 PCL:SV facet scores (Interpersonal, Affective, Impulsive Lifestyle, Antisocial Behavior) served as indicators in this study, and the data were analyzed with 3 principal taxometric procedures--mean above minus below a cut, maximum eigenvalue, and latent mode factor analysis. The results show evidence of dimensional structure on the PCL:SV in the full sample as well as in all 8 subsamples (men, women, Whites, Blacks, hospital patients, jail/prison inmates, file review with an interview, file review without an interview). These findings corroborate recent taxometric research on the Psychopathy Checklist-Revised (R. D. Hare, 1991, 2003) in which results have been largely dimensional in nature. It is concluded that scores on the PCL:SV differ quantitatively as points on a dimension (high vs. low psychopathy) rather than partitioning into qualitatively distinct categories of behavior (psychopath vs. nonpsychopath).     

Predicting future reconviction in offenders with intellectual disabilities: the predictive efficacy of VRAG, PCL-SV, and the HCR-20

Accurate predictions of future reconviction, including those for violent crimes, have been shown to be greatly aided by the use of formal risk assessment instruments. However, it is unclear as to whether these instruments would also be predictive in a sample of offenders with intellectual disabilities. In this study, the authors have shown that the Violence Risk Appraisal Guide (V. L. Quinsey, G. T. Harris, M. E. Rice, & C. Cormier, 1998); the Psychopathy Checklist--Screening Version (S. D. Hart, D. N. Cox, & R. D. Hare, 1995); and the History, Clinical, Risk Management--20 (C. D. Webster, K. S. Douglas, D. Eaves, & S. D. Hart, 1997) were all significant predictors of violent and general reconviction in this sample, and in many cases, their efficacy was greater than in a control sample of mentally disordered offenders without an intellectual disability.