Processing Speed Deficits in Attention Deficit/Hyperactivity Disorder and Reading Disability

The goal of the current study was to test whether deficits in processing speed (PS) may be a shared cognitive risk factor in reading disability (RD) and Attention Deficit/Hyperactivity Disorder (ADHD), which are known to be comorbid. Literature on ADHD and RD suggests that deficits on tasks with a speeded component are seen in both of these disorders individually. The current study examined a wide range of speeded tasks in RD, ADHD, comorbid RD+ADHD, and a control group to test whether RD and ADHD have similar profiles of PS deficits, and whether these deficits are shared by the two disorders. The results suggest that a general PS deficit exists in both clinical groups compared to controls, although children with RD demonstrate greater PS deficits than children with ADHD. Two tests (underadditivity and partial correlations) were conducted to test whether these PS deficits are shared. Since we found that PS deficits were underadditive in the comorbid group and that partialling PS reduced the correlation between RD and ADHD, it appears that PS is a shared cognitive risk factor that may help explain the comorbidity of these two disorders.     

元伦理学崛起的历史原因探析

元伦理学在西方崛起的历史原因必须在垄断资本主义的社会现实、现代主义运动和“现代性”中寻找。垄断资本主义的出现是西方现代主义运动爆发的现实基础,而现代主义运动则为西方带来了以“反传统”为基本特征的“现代性”。元伦理学家既是现代主义运动的受影响者,也是该运动的直接参与者和推动者。元伦理学具有显而易见的现代性特征。     

Eye-Hand Coordination in Rhythmical Pointing

The authors investigated the relation between hand kinematics and eye movements in 2 variants of a rhythmical Fitts's task in which eye movements were necessary or not necessary. P. M. Fitts's (1954) law held in both conditions with similar slope and marginal differences in hand-kinematic patterns and movement continuity. Movement continuity and eye—hand synchronization were more directly related to movement time than to task index of difficulty. When movement time was decreased to fewer than 350 ms, eye—hand synchronization switched from continuous monitoring to intermittent control. The 1:1 frequency ratio with stable π/6 relative phase changed for 1:3 and 1:5 frequency ratios with less stable phase relations. The authors conclude that eye and hand movements in a rhythmical Fitts's task are dynamically synchronized to produce the best behavioral performance.     

Reaction Time of Healthy Older Adults Is Reduced While Walking Fast

Attentional requirements of walking at various speeds in older adults were examined. Twenty healthy older adults (69.9?±?2.77?years; 8 males) were asked to walk a distance of 10?m at a self-selected speed as well as 30% quicker and 30% slower. Concurrently, reaction time (RT) was evaluated by having participants respond as fast as possible to randomly presented auditory stimuli. Results reveal that an accelerated walking speed generated faster RT than slow and self-selected speeds, while no difference was found between the latter. Faster RTs during an accelerated walking speed may have been precipitated by the reduced equilibrium demands of the task.     

The Appreciation of Humor in Captioned Cartoons

Humor appreciation for captioned cartoons was studied as a function of cartoon category and eight predictor variables: complexity, difficulty, fit, depth, visual humor, artwork, vulgarity, and originality. Preference and funniness proved to be virtually identical as criterion variables and were combined as appreciation for further analysis. A nonmetric factor analysis of appreciation ratings yielded four dimensions: (a) Sexual, (b) Incongruity, (c) Social Issues, and (d) Marriage-Family. Sexual and Marriage-Family were the most appreciated categories, Social Issues the least appreciated. Fit and originality were the only predictor variables with significant relationships to appreciation independent of the category effect. Cartoons judged to have the most originality and the best fit between drawing and caption were most appreciated. The results suggest that the kinds of cognitive processes involved in cartoon-humor appreciation are very similar to those involved in environmental preference.     

Psychoanalysis in Austria after 1933-34

Our essay focuses on major developments of the history of psychoanalysis during the fascist and National Socialist years in Austria and sheds light on the re-establishment of psychoanalysis after World War II. With the consolidation of National Socialism in Germany in 1933 and Austro-fascism in 1934, any psychoanalytical reflection that was critical of political and cultural trends was extinguished. Vienna - once again - became the center of the psychoanalytical movement in Central Europe, taking over the role Berlin had played during the twenties. But, during the Austro-fascist system, psychoanalysis was isolated from an important part of its public. Psychoanalysts reacted by adopting an attitude of political abstinence, accompanied by self-censorship, they concentrated on training and clinical work, or they went into exile. Austria's Anschluß to the National Socialist Third Reich led to the final destruction of psychoanalysis. Nearly all Viennese analysts were affected by the anti-Jewish measures of the National Socialists and almost all of them fled the country. During the war years, a small group of people under the leadership of August Aichhorn tried to continue psychoanalytic training. Its members refounded the Viennese Psychoanalytical Society in early 1946. But, scientific traditions were broken and tendencies of anti-enlightenment, especially clerical and catholic prejudices, had continued from the time of Austrofascism and Nationalsocialism. The last chapter of our essay summarizes the research topics and the main historiographical studies done in the field.     

Task-load manipulation in the Symbol Digit Modalities Test: An alternative measure of information processing speed

ObjectiveTo evaluate the utility of an oral fMRI-adapted version of the Symbol Digit Modalities Test (SDMT) to assess information processing speed (IPS) using three different interstimulus intervals (ISI).MethodsNineteen right-handed healthy controls performed the adapted version of the SDMT, consisting of a block design that had a total of 6 control/activation block pairs with 3 different ISIs (1.5, 2 and 2.5 s) presented in two different runs: in ascending and descending orders. The brain activation patterns during different ISIs were assessed by effective functional connectivity analysis based on independent component analysis.ResultsAs expected, all conditions yielded activations in the fronto-parietal networks (FPNs) related to attention processes. Shorter ISIs (1.5 and 2 s) not only yielded greater patterns of connectivity within fronto-parietal and occipital regions such as the FPN and fronto-occipital network (FON), but also recruited more functional networks overall. Task performance at the shortest ISI was negatively correlated with connectivity at the FPN and activity of the pre-supplementary motor area extending to the cingulate gyrus.ConclusionIncreasing IPS demands due to shorter ISIs resulted in an increased level and number of functional networks required, increased connectivity within the FPN and FON, and enhancement of the prefrontal cortex. IPS does not arise from activity of a single b area but from affective information transfer among distant cortical regions of the frontal and parietal cortices. This adapted version of the SDMT may be useful for studying alterations of IPS in clinical and nonclinical populations.     

Effects of anxiety on handgun shooting behavior of police officers: a pilot study

Abstract

The current pilot study aimed at providing an initial assessment of how anxiety influences police officers’ shooting behavior. Seven police officers participated and completed an identical shooting exercise under two experimental conditions: low anxiety, against a non-threatening opponent, and high anxiety (HA), against a threatening opponent who occasionally shot back using colored soap cartridges. Measurements included shooting accuracy, movement times, head/body orientation, and blink behavior. Results showed that under HA, shooting accuracy decreased. Underlying this degradation of performance, participants acted faster and made themselves smaller to reduce the chance of being hit. Furthermore, they blinked more often, leading to increases in the amount of time participants had their eyes closed. Findings provide support for attentional control theory, hereby also pointing to possible interventions to improve police officers’ shooting performance under pressure.     

Longitudinal Changes in Memory Performance and Processing Speed in Old Age abstract Keywords

The speed theory of cognitive aging posits that an age-related slowing of processing speed leads to impairments in higher order cognitive functions, such as memory. However, only few studies have examined the relationship between longitudinal changes in processing speed and longitudinal changes in memory performance. In the present study, data of 474 older adults (T1: 59–65 years) from the Interdisciplinary Longitudinal Study on Adult Development (ILSE) were used to investigate whether changes in speed and in memory were associated over a 4-year period. Performance changes in both constructs were analyzed using latent change factor models. Results show that latent changes in processing speed and latent changes in memory performance correlated with 0.61. This association is considerably lower than what would have been expected from cross-sectional data. Our longitudinal results suggest that although speed changes explain a substantial proportion of variance in memory changes, additional explanatory factors must be taken into consideration.