Influence of age and sex on line bisection: a study of normal performance with implications for visuospatial neglect

Line bisection is an established clinical task used to diagnose visuospatial neglect. To date, few studies have considered the extent to which age and sex as background variables contribute to bisection performance. Both variables affect the neural substrates underlying cognitive processes and hence the behavioural performance of bisection. The purpose of this study was to examine the effects of age and sex on normal bisection performance, using three different line lengths to elucidate the influence of these potential contributing factors. Seventy men and 70 women, divided equally into seven age-cohorts between 14 and 80 years, bisected lines. Results indicated clear age- and sex-related differences both in the magnitude and direction of bisection deviations across the three line lengths. Differences are discussed in terms of neural changes across the adult lifespan including hemispheric differences and hormonally mediated changes.     

Sense of coherence,resilience, and habitual optimism in cancer patients

Background/ObjectiveThe aim of this study was to investigate whether the three resource variables sense of coherence, resilience, and dispositional optimism become impaired when people are ill with cancer, whether there are sex and age differences in these variables, and how these variables are associated with quality of life (QoL).MethodA sample of 1108 patients with mixed cancer diagnoses were examined using the Sense of Coherence Scale-3 (SOC-3), the Brief Resilience Scale (BRS), the Life Orientation Test (LOT-R), and the QoL questionnaire EORTC QLQ-C30.ResultsThe three resource variables showed somewhat lower levels in the patients’ sample in comparison with general population controls, with effect sizes between ?0.10 and ?0.23. While there were only small sex differences in the resource variables, significant age differences were found in these variables, with stronger detriments in younger patients. The correlations among the resource variables ranged between .53 and .61. Sense of coherence was more strongly correlated with QoL than resilience and optimism.ConclusionsCancer patients with low levels of personal resources adapt to their disease more poorly than patients with high levels. In addition to limitations in QoL, health care professionals should also consider patients’ resources for coping with the disease. Special attention should be given to young cancer patients.     

Integrating moral and achievement variables to predict doping likelihood in football: A cross-cultural investigation

ObjectivesIn our study, we had two objectives. Our first objective was to test a social-cognitive model of doping in sport. In this model, we examined moral variables (i.e., moral disengagement, moral identity, anticipated guilt) and performance motivational climate as predictors of doping likelihood and whether performance motivational climate moderates the relationship between moral disengagement and doping likelihood. The second objective was to determine whether this model is invariant across sex and country.DesignWe used a cross-sectional design.MethodParticipants were 1495 (729 females) elite football players (mean age 20.4 ± 4.4) recruited from 97 teams in the UK, Denmark and Greece. They completed questionnaires measuring the aforementioned variables.ResultsMoral disengagement positively predicted doping likelihood both directly and indirectly via anticipated guilt. The direct relationship was significant only when performance climate was perceived as average or high. Moral identity negatively predicted doping likelihood via both moral disengagement and anticipated guilt; and performance climate positively predicted doping likelihood. The model was largely invariant across sex and country.ConclusionsOur findings suggest that young elite football players in the UK, Denmark and Greece are less likely to use banned substances to enhance their performance, if they consider being moral an important part of who they are, and if they perceive a low performance climate in their team. Moral identity is likely to trigger feelings of guilt associated with the use of banned substances and to mobilize moral disengagement mechanisms. Our findings highlight the importance of moral variables in deterring the use of banned substances in sport.     

Cross-Sectional versus Longitudinal Age Gradients of Tower of Hanoi Performance: The Role of Practice Effects and Cohort Differences in Education

ABSTRACT

We examined 5-year longitudinal changes in Tower of Hanoi (TOH) performance in a population-based sample of adults (35–85 years initially; n?=?1480). An age-matched sample (n?=?433) was included to estimate practice effects. The longitudinal age gradients differed substantially from the cross-sectional age gradients. This was the case even when practice effects, that were substantial in magnitude across the young/middle-aged groups, were controlled for. Instead of a continuous age-related deficit in performance from 35 and onwards, longitudinal data showed slowing of performance and increases of illegal moves past age 65. Cohort-related differences in educational attainment did not account for this discrepancy. Further analyses revealed a positive relation between practice-related gains and explicit memory of having performed the task at the first test occasion and a positive association between latent changes in TOH and Block Design, in line with cross-sectional findings. In conclusion, the results demonstrate a pattern of age-related changes indicating a late-onset decline of TOH performance and underscore the need to control for retest effects in longitudinal aging research.     

The influence of aging on the spatial and temporal variables of gait during usual and fast speeds in older adults aged 60 to 102 years

BackgroundWith increases in life expectancy, it is important to understand the influence of aging on gait, given that this activity is related to the independence of older adults and may help in the development of health strategies that encourage successful aging in all phases of this process.Research questionTo compare gait parameters with usual and fast speeds for independent and autonomous older adults throughout the aging process (60 to 102 years old), and also to identify which of the gait variables are best for identifying differences across the different age groups.MethodsTwo hundred older adults aged between 60 and 102 years were evaluated. The sample was divided into 3 age groups: 60 to 79 years, 80 to 89 years and 90 years and over. The analyzed gait variables were: speed (meters/s), cadence (steps/min), stride time (seconds), step length (centimeters), double support (percentage of the gait cycle), swing (percentage of the gait cycle), step length variability (CoV%) and stride time variability (CoV%).ResultsGroup comparison regarding usual gait and fast gait revealed a significant difference in all gait variables. In addition, it can be seen that variables such as gait speed and step length showed greater effect sizes in intergroup comparison (usual gait: 0.48 and 0.47; fast gait: 0.36 and 0.40; respectively), possibly showing that these variables can better detect the changes observed with increasing age.ConclusionThere are differences in the gait performance of older adults from different age groups for usual and fast gait speeds, which is more evident regarding gait speed and step length variables. We recommend the use of usual gait for the identification of the effects of aging because, besides showing a higher effect size values it is more comfortable and requires less effort from older subjects.     

Daily fluctuations in the affective states of dancers: A cross-situational test of basic needs theory

ObjectivesThis study tested the generalizability of basic needs theory (BNT; Deci & Ryan, 2000) across situations in which dancers learn and perform within vocational dance. Specifically, we examined the inter-relationships between daily and typical perceptions of autonomy support, basic psychological need satisfaction, and changes in affective states, across dance situations that were divergent in their learning and evaluative potential (dance classes, rehearsals, and performances). Genre differences were also examined.DesignA one-month diary study examined the inter-relationships between typical and daily perceptions of autonomy support, basic psychological need satisfaction and positive and negative affect among dancers studying three distinct genres and in three situations (classes, rehearsals, performances).MethodFifty-five dancers completed a series of scales tapping the variables of interest. Abbreviated versions of the scales were completed before (affective states) and after (affective states, basic needs and autonomy support) dance classes, rehearsals and performances over four weeks. Analyzes tested the BNT sequence across the learning and performance situations. Interactions between typical and state experiences were tested. Cross-genre comparisons were also made.ResultsResults partially supported the BNT sequence across classes, rehearsals and performances. There were situational differences in the salience of each need as a predictor of affective states. When comparing genres, some differences were also found in perceived autonomy support, basic need satisfaction and affective states.ConclusionsFindings point to the importance of promoting autonomy supportive dance teaching to facilitate dancers' day-to-day experiences of well-being.     

Disjunctive Concept Utilization in Preschool Children

Summary

Twenty-four children, eight each in three age groups, were asked to “play a game” which required them to utilize disjunctive concepts such as “blue or car.” The disjunctive concepts used were the nine which can be formed by combining one value from among three possibilities on the color dimension (green, blue, red) with one value from among three possibilities on the form dimension (car, boat, airplane). The task consisted of 18 five-choice trials with each of the nine disjunctive concepts represented twice—once with the color mentioned first and once with the form mentioned first. Ss were required to pick the positive instance card. All three groups performed significantly better than chance (ps. < .0001) on the task. A significant relation between age and performance on this task was found (Rho = .65, p < .05). There were no sex differences. The results are discussed in relation to task variables and an associative view of cognitive development.     

Testing n-stimuli bisymmetry

In the seventies bisection, a kind of observational averaging of two stimuli, came to be studied and empirically investigated in measurement theory and corresponding psychophysical experiments. Since 1993, Münnich, Maksa and Mokken (Aggregating evaluations of multi-attribute stimuli. 31st International Symposium on Functional Equations, Debrecen, 2000) developed the formal framework and theory for a more general type of bisection of more than two variables. A core assumption for this generalization of 2-stimuli bisection to that of n-stimuli, is that of n-variable bisymmetry. After an introduction of this concept, the validity of its assumption is tested and demonstrated with four experiments. Experiment 1 was a computer-aided task in which input modalities were different line lengths presented on computer screen. Experiments 1, 3 and 4 included field experiments of the paper and pencil type, in which numbers served as input modalities, but in different contexts.     

Differential construct validity of intelligence as popularly measured: Correlations of age with raw scores on the WISC-R for Blacks Whites, males, and females

Raw scores on the 12 WISC-R subtests and the verbal, performance, and full scale IQ scales were correlated with age in years separately for 938 White males, 137 Black males, 927 White females, and 153 Black females. Highest and lowest correlations from the four groups were then contrasted for each of the 15 WISC-R variables to determine whether the magnitude of the relationship between age and performance on current tests of intelligence is constant across race and sex. Regression coefficients between age and raw scores were also contrasted across groups. None of the 15 comparisons of corrections yielded differences that were statistically significant. Regression coefficients differed only with respect to the Full Scale IQ, showing smaller incremental changes with age for Black males than for other groups. The results indicated that the relationship between age and intelligence test performance is relatively constant across race and sex and supports the construct validity of the WISC-R as a measure of children's intelligence for Blacks, Whites, males, and females, though some evidence was found to indicate slower development of “g” in Black males as compared to the other groups.     

Sex Differences in Cognition are Stable Over a 10-Year Period in Adulthood and Old Age

ABSTRACT

Sex differences in declarative memory and visuospatial ability are robust in cross-sectional studies. The present longitudinal study examined whether sex differences in cognition were present over a 10-year period, and whether age modified the magnitude of sex differences. Tests assessing episodic and semantic memory, and visuospatial ability were administered to 625 nondemented adults (initially aged 35–80 years), participating in the population-based Betula study at two follow-up occasions. There was stability of sex differences across five age groups and over a 10-year period. Women performed at a higher level than men on episodic recall, face and verbal recognition, and semantic fluency, whereas men performed better than women on a task-assessing, visuospatial ability. Sex differences in cognitive functions are stable over a 10-year period and from 35 to 90 years of age.     

Correlates of Psychological Hardiness in Canadian Adolescents

Abstract

An analysis of some of the correlates of psychological hardiness in Canadian adolescents was presented in the present study. In a regression analysis, sex, age, grade in school, religion, and well-being were all significantly associated with differences in hardiness. Exploratory path analyses indicated two possible streams of causality: age and grade in school, and religion, sex, and happiness. A discriminate analysis indicated that these same five variables could be used successfully to classify 73% of the adolescents identified as high or low in hardiness.     

Perception of Temporal Order: The Effects of Age,Sex, and Cognitive Factors

ABSTRACT

The present paper investigates the effects of age, sex, and cognitive factors on temporal-order perception. Nine temporal-order tasks were employed using two and four stimuli presented in the auditory and visual modalities. Significantly increased temporal-order thresholds (TOT) in the elderly were found for almost all tasks, while sex differences were only observed for two tasks. Multiple regression analyses show that the performance on most temporal-order tasks can be predicted by cognitive factors, such as speed of fluid reasoning, short-term memory, and attention. However, age was a significant predictor of TOT in three tasks using visual stimuli. We conclude (1) that age-related differences can often be attributed to cognitive factors involved in temporal-order perception, and (2) that the concept of temporal-order perception is more complex than implied by the current models.     

Biases of spatial attention in vision and audition

Neurologically normal observers misperceive the midpoint of horizontal lines as systematically leftward of veridical center, a phenomenon known as pseudoneglect. Pseudoneglect is attributed to a tonic asymmetry of visuospatial attention favoring left hemispace. Whereas visuospatial attention is biased toward left hemispace, some evidence suggests that audiospatial attention may possess a right hemispatial bias. If spatial attention is supramodal, then the leftward bias observed in visual line bisection should also be expressed in auditory bisection tasks. If spatial attention is modality specific then bisection errors in visual and auditory spatial judgments are potentially dissociable. Subjects performed a bisection task for spatial intervals defined by auditory stimuli, as well as a tachistoscopic visual line bisection task. Subjects showed a significant leftward bias in the visual line bisection task and a significant rightward bias in the auditory interval bisection task. Performance across both tasks was, however, significantly positively correlated. These results imply the existence of both modality specific and supramodal attentional mechanisms where visuospatial attention has a prepotent leftward vector and audiospatial attention has a prepotent rightward vector of attention. In addition, the biases of both visuospatial and audiospatial attention are correlated.     

A comparison of the performance of Persian speaking children who do and do not stutter on three nonwords repetition tasks

PurposeThe purpose of the study was to examine the performance of Persian speaking children who stutter (CWS) and children who do not stutter (CWNS) on three nonword repetition tasks, while also focusing on which task and scoring method best differentiates the two groups of children.MethodThirty CWS and 30 CWNS between the ages of 5;0 to 6;6 completed three nonword repetition tasks that varied in complexity. Each task was scored using two methods: nonwords correct and phonemes correct. Between-group differences in performance on each task were examined, along with disfluencies for CWS and the task and scoring method that best differentiated the CWS and CWNS.ResultsThe findings revealed that, across all three nonword repetition tasks, the CWS consistently produced fewer nonwords correct and phonemes correct than the CWNS group at virtually all syllable lengths. The CWS produced more disfluencies on longer nonwords than shorter nonwords in all three nonword repetition tasks. The nonword repetition task with lower wordlikeness and more phonologically complex items best differentiated the two groups of children. Findings further revealed that discriminative accuracy was highest for scoring based on the number of phonemes produced correctly.ConclusionFindings provide further evidence to suggest that CWS may have difficulty with phonological working memory and/or phonological processing.     

Developmental changes in time estimation: comparing childhood and old age.

Participants from ages 5 to 99 years completed 2 time estimation tasks: a temporal generalization task and a temporal bisection task. Developmental differences in overall levels of performance were found at both ends of the life span and were more marked on the generalization task than the bisection task. Older adults and children performed at lower levels than young adults, but there were also qualitative differences in the patterns of errors made by the older adults and the children. To capture these findings, the authors propose a new developmental model of temporal generalization and bisection. The model assumes developmental changes across the life span in the noisiness of initial perceptual encoding and across childhood in the extent to which long-term memory of time intervals is distorted.     

Sex differences in cognition in healthy elderly individuals

ABSTRACT

Sex differences in patterns of cognitive test performance have been attributed to factors, such as sex hormones or sexual dimorphisms in brain structure, that change with normal aging. The current study examined sex differences in patterns of cognitive test performance in healthy elderly individuals. Cognitive test scores of 957 men and women (age 67–89), matched for overall level of cognitive test performance, age, education, and depression scale score, were compared. Men and women were indistinguishable on tests of auditory divided attention, category fluency, and executive functioning. In contrast, women performed better than men on tests of psychomotor speed and verbal learning and memory, whereas men outperformed women on tests of visuoconstruction and visual perception. Our finding that the pattern of sex differences in cognition observed in young adults is observed in old age has implications for future studies of both healthy elderly individuals and of those with cognitive disorders.     

Crossover by Line Length and Spatial Location

It is well known that line length has a systematic influence on line bisection error in neglect. Most patients with neglect misbisect long lines on the same side of true center as their brain lesion but then cross over on short lines, misbisecting them on the opposite side (i.e., crossover by line length). What is less recognized is that the spatial location of lines relative to the viewer can similarly induce a crossover effect when one considers line bisection error scores that have been averaged across individual line lengths. Patients with right hemisphere injury and neglect classically make averaged line bisection errors that fall right of true center on lines located either at midline or to the left of the viewer; however, we observed that the averaged line bisection error can fall left of true center when lines are located to the right of the viewer (i.e., crossover by spatial location). We hypothesized that crossover by both line length and spatial location stem from systematic errors in magnitude estimation, i.e., perceived line length. We tested predictions based on this hypothesis by examining how the crossover effect by line length is altered by the spatial location of lines along a horizontal axis relative to the viewer. Participants included patients with unilateral lesions of the right and left cerebral hemispheres and age-appropriate normal subjects. All groups demonstrated a crossover effect by line length at the midline location but the effect was altered by placing lines to the right and left of the viewer. In particular, patients with right hemisphere injury and neglect crossed-over across a broader range of line lengths when the lines were located to the right of the viewer rather than at either midline or left of the viewer. It is proposed that mental representations of stimulus magnitude are altered in neglect, in addition to mental representations of space, and that traditional accounts of neglect can be enhanced by including the psychophysical concept of magnitude estimation.     

Church Attendance,Religious Activities,and the Life Satisfaction of Older Adults in Middletown,U.S.A.

ABSTRACT

The central focus of this study is to examine the patterns and relationships which may or may not exist between religious attendance and activity, sex, health, income, and age with regard to the sense of subjective well-being as expressed by older Middletowners. Based on a random sample of 400 persons, 60 years of age and older, a multiple regression analysis reveals that three variables account for the vast majority of variance in life satisfaction. Those variables are: SUBJECTIVE HEALTH STATUS, SATISFACTION WITH INCOME, and CHURCH ATTENDANCE. For those three variables R = .4780; R² = .2284. When all seven independent variables were included R = .4851; R² = .2351. In addition, further analysis was undertaken to examine the interrelationships between the seven independent variables.     

Temporal order judgements as a sensitive measure of the spatial bias in patients with visuospatial neglect

Visuospatial neglect is not a unitary phenomenon, but can be better considered a syndrome, consisting of a multitude of different spatial and non‐spatial components. In this study, we used a temporal order judgement (TOJ) test in a large sample of stroke patients (n = 73) to scrutinize the contribution of a spatial bias to the performance on shape cancellation and line bisection tests. In the TOJ test, patients were presented with two elements, one in each visual field, after which the one needed to indicate which of the two elements was presented earlier. For each visual field, the presentation of the stimuli was determined by a staircase procedure where the interval between the two stimuli was determined by the performance of the patient. Results indicated that the strength of the spatial bias was strongly correlated with an object cancellation test, but not with a line bisection test. We argue that these findings are explained by differences in the extent to which a spatial bias determines performance on both tasks: In contrast to shape cancellation tests, successful performance on line bisection tests depends primarily on an object‐based, allocentric representation of space, unrelated to any spatial bias in the detection of elements in the contralesional visual field.     

Validity of the trait emotional intelligence questionnaire in sports and its links with performance satisfaction

ObjectiveThis research project consisted of two studies aimed at validating the trait emotional intelligence questionnaire (TEIQue) in a sports sample.DesignStudy 1 used a confirmatory factor analysis (CFA) to investigate if the original 4-factor structure of the TEIQue could be replicated in a sample of athletes. In addition, we explored the relationship between trait emotional intelligence (trait EI) and the demographic variables age, sex, type of sport (individual vs. team), expertise, and years of training. Study 2 used a path analysis approach to explore if trait EI is related to performance satisfaction through stress appraisal and coping behaviors.MethodIn Study 1, 973 athletes completed the TEIQue and a demographic questionnaire. In Study 2, 291 athletes completed the TEIQue. Moreover, with a recent competition in mind, they completed the Coping Inventory for Competitive Sports, as well as items on perceived intensity of stress, perceived controllability of stress, challenge and threat appraisals, coping effectiveness, and performance satisfaction.ResultsStudy 1 showed with a CFA that the original 4-factor structure of the TEIQue could be replicated in a sports sample. Of the demographic variables, only age showed a significant positive relationship with trait EI. Study 2 showed that trait EI was related to performance satisfaction through stress appraisal and coping variables.ConclusionsThis research showed that the TEIQue can be used with athletes and that trait EI is useful for understanding certain aspects of sports performance satisfaction.