scholarly journals Towards a Process Model of Sustained Attention Tests

2019 ◽  
Vol 7 (1) ◽  
pp. 3 ◽  
Author(s):  
Iris Blotenberg ◽  
Lothar Schmidt-Atzert
Keyword(s):  
Sustained Attention ◽  
Test Performance ◽  
Cognitive Abilities ◽  
Process Model ◽  
Discriminant Validity ◽  
Memory Span ◽  
Motor Speed ◽  
Mental Operation ◽  
Operation Speed ◽  
Small Influence

Taking up new approaches and calls for experimental test validation, in the present study we propose and validate a process model of sustained attention tests. Four sub-components were postulated: the perception of an item, a simple mental operation to solve the item, a motor reaction, and the shift to the next item. In two studies, several cognitive tasks and modified versions of the d2-R test of sustained attention were applied in order to determine performance in the proposed sub-components. Their contribution for the prediction of performance in sustained attention tests and tests of higher cognitive abilities was assessed. The sub-components of the process model explained a large amount of variance in sustained attention tests, namely 55–74%. More specifically, perceptual and mental operation speed were the strongest predictors, while there was a trend towards a small influence of motor speed on test performance. The measures of item shifting showed low reliabilities and did not predict test scores. In terms of discriminant validity, results of Study 1 indicated that the postulated sub-components were insufficient to explain a large amount of variance in working memory span tasks, in Study 2 the same was demonstrated for reasoning tasks. Altogether, the present study is the first to disentangle sub-components in sustained attention tests and to determine their role for test performance.

scholarly journals On the Locus of the Practice Effect in Sustained Attention Tests

2019 ◽  
Vol 7 (2) ◽  
pp. 12 ◽  
Author(s):  
Iris Blotenberg ◽  
Lothar Schmidt-Atzert
Keyword(s):  
Sustained Attention ◽  
Test Performance ◽  
Process Model ◽  
Motor Response ◽  
Practice Effect ◽  
Cognitive Tasks ◽  
Limited Extent ◽  
Motor Reaction ◽  
Specific Component ◽  
Motor Processes

The present study set out to explore the locus of the poorly understood but frequently reported and comparatively large practice effect in sustained attention tests. Drawing on a recently proposed process model of sustained attention tests, several cognitive tasks were administered twice in order to examine which specific component of test performance benefitted from practice and to which extent. It was shown that the tasks representing the three sub-components of sustained attention tests, namely the perception of an item, the simple mental operation to solve an item, and the motor reaction to indicate a response to an item, benefitted from practice. Importantly, the largest practice gain was observed for the task that required item-solving processes in addition to perceptual and motor processes. Two additional postulated mechanisms in sustained attention tests—the deliberate shifting between items and the preprocessing of upcoming items—did not become more efficient through practice. Altogether, the present study shows that the practice effect in sustained attention tests seems to be primarily due to faster item-solving processes and, to a limited extent, due to a faster perception of the item, as well as a faster motor response. Moreover, besides the sub-components, it is likely that also the coordination of perceptual, item-solving, and motor processes benefitted from practice. Altogether, the present paper may have taken a first step towards a better understanding of the specific processes that cause the large practice gains in sustained attention tests.

scholarly journals NCOG-70. RELIABILITY AND VALIDITY OF A NEW SELF-REPORT INDEX OF COGNITIVE CONCERNS IN BRAIN TUMOR PATIENTS

2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii145-ii145
Author(s):  
Giuliana Zarrella ◽  
Alice Perez ◽  
Jorg Dietrich ◽  
Michael Parsons
Keyword(s):  
Brain Tumor ◽  
Verbal Memory ◽  
Cognitive Abilities ◽  
Convergent Validity ◽  
Discriminant Validity ◽  
Reliability And Validity ◽  
Cognitive Testing ◽  
Self Report ◽  
Measurement Information ◽  
Patient Reported

Abstract INTRODUCTION Subjective cognitive dysfunction is an important outcome measure in neuro-oncology and may provide additional information beyond performance-based neuropsychological testing. The Functional Assessment of Cancer Therapy-Brain (FACT-Br) is a frequently used quality of life (QoL) measure that includes indices of physical, emotional, social, and neurologic aspects of disease, but does not measure cognitive concerns. This study seeks to develop and validate an index of self-reported cognition derived from existing items on the FACT-Br. METHODS 145 patients (Mage=51.08, Medu=15.63) with heterogeneous brain tumor diagnoses completed neuropsychological evaluation including cognitive testing and self-report measures. Nine FACT-Br items regarding cognition were combined to form the Cognitive Index (CI). Reliability of the CI was measured with Cronbach’s alpha. Concurrent validity was assessed by correlating the CI with the Patient-Reported Outcomes Measurement Information System (PROMIS) Cognitive Abilities-8 or PROMIS Cognitive Concerns-8. Discriminant validity was assessed by correlation of the CI with other FACT-Br indices and the Beck Depression and Anxiety Inventories (BDI, BAI). RESULTS Internal consistency within the CI was high (Cronbach’s a 0.864). The CI correlated strongly with the PROMIS-Abilities (r =.680; p< 0.001) and PROMIS-Concerns (r=.780; p< 0.001) indicating high convergent validity. Moderate correlations were observed between the CI and the physical and functional subscales of the FACT (r=.453 and .555), whereas correlations with the social and emotional functioning subscales were weaker (r=.381 and .325). The FACT-Br-CI correlated strongly with BDI (r=-.622) and more weakly with the BAI (r=-.344). Consistent with prior literature, the CI showed modest correlations with neuropsychological measures, including verbal memory encoding (r=.300), verbal fluency (r=.252) and a composite measure of cognition (r=.249; all p’s< .01). CONCLUSIONS The FACT-Br-CI is a reliable and valid measure of self-reported cognition. Studies that include the FACT-Br could be retrospectively analyzed to assess self-reported cognitive outcomes, enriching the information gained from prior research.

scholarly journals Detecting the significance of changes in performance on the Stroop Color-Word Test, Rey's Verbal Learning Test, and the Letter Digit Substitution Test: The regression-based change approach

2007 ◽  
Vol 14 (1) ◽  
pp. 71-80 ◽  
Author(s):  
WIM VAN DER ELST ◽  
MARTIN P.J. VAN BOXTEL ◽  
GERARD J.P. VAN BREUKELEN ◽  
JELLE JOLLES
Keyword(s):  
Test Performance ◽  
Cognitive Abilities ◽  
Color Word ◽  
Verbal Learning ◽  
Change Score ◽  
Total Recall ◽  
Word Test ◽  
Age Related ◽  
Stroop Color Word Test ◽  
Learning Test

Serial neuropsychological assessment is often conducted to monitor changes in the cognitive abilities of individuals over time. Because practice effects occur and the reliability of test scores is less than perfect, it is difficult to judge whether varying test results should be attributed to chance trends or to real changes in underlying cognitive abilities. In a large sample of adults (age range, 49–81 years), we evaluated the influence of age, gender, and education on test–retest changes in performance after 3 years on Rey's Verbal Learning Test (VLT), the Stroop Color-Word Test (SCWT), and the Letter Digit Substitution Test (LDST). A new statistical method was applied to assess the significance of changes in test performance (i.e., the regression-based change method). The results showed that test–retest changes differed as a function of age for the VLT Total recall 1–3, VLT Total recall 1–5, VLT Delayed recall, and LDST measures. An age × gender interaction was found for the SCWT Interference change score, suggesting that the age-related decline in executive functioning after 3 years was more pronounced for males than for females. A normative change table with appropriate corrections for the relevant independent variables was established. (JINS, 2008,14, 71–80.)

scholarly journals Linking ecology and cognition: does ecological specialisation predict cognitive test performance?

2020 ◽  
Vol 74 (12) ◽  
Author(s):  
Johanna Henke-von der Malsburg ◽  
Peter M. Kappeler ◽  
Claudia Fichtel
Keyword(s):  
Cognitive Performance ◽  
Test Performance ◽  
Cognitive Abilities ◽  
Social Intelligence ◽  
Brain Size ◽  
Relevant Literature ◽  
Interspecific Variation ◽  
Habitat Characteristics ◽  
Cognitive Test ◽  
Ecological Processes

AbstractVariation in cognitive abilities is thought to be linked to variation in brain size, which varies across species with either social factors (Social Intelligence Hypothesis) or ecological challenges (Ecological Intelligence Hypothesis). However, the nature of the ecological processes invoked by the Ecological Intelligence Hypothesis, like adaptations to certain habitat characteristics or dietary requirements, remains relatively poorly known. Here, we review comparative studies that experimentally investigated interspecific variation in cognitive performance in relation to a species’ degree of ecological specialisation. Overall, the relevant literature was biased towards studies of mammals and birds as well as studies focusing on ecological challenges related to diet. We separated ecological challenges into those related to searching for food, accessing a food item and memorising food locations. We found interspecific variation in cognitive performance that can be explained by adaptations to different foraging styles. Species-specific adaptations to certain ecological conditions, like food patch distribution, characteristics of food items or seasonality also broadly predicted variation in cognitive abilities. A species’ innovative problem-solving and spatial processing ability, for example, could be explained by its use of specific foraging techniques or search strategies, respectively. Further, habitat generalists were more likely to outperform habitat specialists. Hence, we found evidence that ecological adaptations and cognitive performance are linked and that the classification concept of ecological specialisation can explain variation in cognitive performance only with regard to habitat, but not dietary specialisation.

scholarly journals Neuropsychology of Illiteracy

1993 ◽  
Vol 6 (2) ◽  
pp. 107-112 ◽  
Author(s):  
M. Rosselli
Keyword(s):  
Test Performance ◽  
Cognitive Abilities ◽  
Neuropsychological Tests ◽  
Neuropsychological Test ◽  
Cognitive Activity ◽  
Hemispheric Dominance ◽  
Brain Pathology ◽  
Brain Organization ◽  
Cultural Variables ◽  
Cognitive Sequelae

It is proposed that analysis of illiteracy can not only discern the influence of schooling background on neuropsychological test performance, but also contributes to obtaining a better understanding about the cerebral organization of cognitive activity. Brain organization of cognition, and cognitive sequelae of brain pathology in illiterates are reviewed. It is concluded that: (1) cognitive abilities, as measured by standard neuropsychological tests, are significantly influenced by schooling background; and (2) educational and cultural variables may affect the degree (albeit, not the direction) of hemispheric dominance for language, and other cognitive abilities. A more bilateral representation of cognitive abilities in illiterates is hypothesized.

The relationship between abusive supervision and employee's reaction: the job demands-resources model perspective

2020 ◽  
Vol 49 (9) ◽  
pp. 2035-2054
Author(s):  
Liang-Chih Huang ◽  
Cheng-Chen Lin ◽  
Szu-Chi Lu
Keyword(s):  
Emotional Exhaustion ◽  
Process Model ◽  
Discriminant Validity ◽  
Job Demands ◽  
Abusive Supervision ◽  
Moderated Mediation ◽  
Job Crafting ◽  
Content Type ◽  
Withdrawal Behavior ◽  
The Relationship

PurposeBased on the job demands-resources model, the present study proposes viewing abusive supervision as one type of job demand causing employees' emotional exhaustion, which results in psychological withdrawal behavior. In addition, job crafting can be viewed as a means to acquire job resources, and it buffers the influence of abusive supervision on employees' emotional exhaustion. Moreover, the present study also proposes the moderating effect of job crafting on abusive supervision and psychological withdrawal behavior will be mediated by emotional exhaustion.Design/methodology/approachConsidering the issue of common method variance, data were not only collected in a multi-temporal research design but also tested by Harman's one-factor test. In addition, a series of confirmatory factor analyses was conducted to ensure the discriminant validity of measures. The moderated mediation hypotheses were tested on a sample of 267 participants.FindingsThe process model analysis showed that emotional exhaustion partially mediates the relationship between abusive supervision and psychological withdrawal behavior. Moreover, job crafting buffers the detrimental effect of abusive supervision on emotional exhaustion, and the less exhausted employees exhibit less psychological withdrawal behavior than those exhausted.Originality/valueThis study proposed a moderated mediation model to examine how and when abusive supervision leads to more employees' psychological withdrawal behaviors, and found that emotional exhaustion is one potential mechanism and job crafting is one potential moderator. Specifically, it was revealed that employees view abusive supervision as a kind of social and organizational aspect of job demands which will exacerbate emotional exhaustion, and, in turn, lead to more psychological withdrawal behavior. However, when employees view themselves as job crafter, they can adopt various job crafting behaviors to decrease the emotional exhaustion, and thus less psychological withdrawal behavior.

scholarly journals B-15 Engagement in Cognitively-Demanding Activities in Daily Life is Associated with Neurocognitive Test Performance and Perceived Cognitive Difficulties Among Adults With and Without HIV

2019 ◽  
Vol 34 (6) ◽  
pp. 959-960
Author(s):  
E Paolillo ◽  
M Hussain ◽  
R Moore ◽  
D Moore ◽  
R Heaton
Keyword(s):  
Test Performance ◽  
Cognitive Abilities ◽  
Neurocognitive Impairment ◽  
Self Report ◽  
Daily Activities ◽  
Continuous Variables ◽  
Everyday Functioning ◽  
Total Frequency ◽  
Cognitive Difficulties ◽  
Neurocognitive Test

Abstract Objective Assessing daily activities is important for understanding how cognitive abilities affect everyday functioning. We evaluated a new measure capturing engagement in cognitively-demanding activities among people with and without HIV, and examined associations with neurocognitive test performance and perceived cognitive difficulties. Method Participants included 79 adults (59 HIV+, 20 HIV-) enrolled in studies at UCSD (mean age = 55.1; SD = 13.1). Domain-specific composite scaled scores measured neurocognitive functioning as continuous variables. Demographically-corrected global deficit scores determined neurocognitive impairment. Perceived cognitive difficulties were self-reported via the Everyday Cognition scale (ECog). The newly created, self-report Frequency and Difficulty of Activities Scale (FDAS) measured frequency of engagement in 27 cognitively-demanding activities [0 = Never to 10 = Once a day or more] in the last month. FDAS “total frequency score” sums all frequency ratings. Participants also rated difficulty performing each FDAS activity [0 = Not at all to 10 = Extremely]. FDAS “difficult-activity score” sums frequency ratings only for activities that participants identified as difficult for them (i.e., difficulty rating >75th percentile of sample). Results Higher FDAS total frequency scores correlated with better verbal fluency (r = 0.26, p = 0.019) and processing speed (r = 0.24, p = 0.030). Multiple regression revealed a significant interaction between cognitive impairment and frequency of engagement in difficult activities (b = 0.34, 95%CI = 0.18-0.50, p < 0.001), such that higher FDAS difficult-activity scores related to more perceived cognitive difficulties only among cognitively impaired participants. Conclusion This study explored use of a new measure of complex daily activities to aid neuropsychological interpretation. Results suggest that effects of neurocognitive impairment on perceived cognitive difficulties may only be apparent if individuals are attempting to perform challenging everyday tasks.

scholarly journals Effect of educational status on performance of older adults in digital cognitive tasks: A systematic review

2017 ◽  
Vol 11 (2) ◽  
pp. 114-120
Author(s):  
Lucas Pelegrini Nogueira de Carvalho ◽  
Diana Quirino Monteiro ◽  
Fabiana de Souza Orlandi ◽  
Marisa Silvana Zazzetta ◽  
Sofia Cristina Iost Pavarini
Keyword(s):  
Systematic Review ◽  
Older Adults ◽  
Test Performance ◽  
Cognitive Abilities ◽  
Educational Status ◽  
Cognitive Tasks ◽  
Cognitive State ◽  
Cognitive Tests ◽  
Cognitive Domains ◽  
Neuropsychological Instruments

ABSTRACT As people age, cognitive abilities may decline resulting in serious disabilities. Neuropsychological instruments can provide information on the cognitive state of older adults. Researchers worldwide have been using digital cognitive tests to assess cognitive domains. Objective: To determine whether educational status affects the performance of older adults on digital cognitive tasks. Methods: A systematic review of articles in English, Portuguese, or Spanish published in the last 5 years was conducted. The databases searched were SCOPUS, PubMed, Lilacs, Scielo and PsychInfo. The PRISMA method was used. Results: A total of 7,089 articles were initially retrieved. After search and exclusion with justification, seven articles were selected for further review. Conclusion: The findings revealed that researchers using digital tasks generally employed paper-based tests to compare results. Also, no association between years of education and test performance was found. Finally, a dearth of studies using digital tests published by Brazilian researchers was evident.

Decreased processing speed might account for working memory span deficit in schizophrenia, and might mediate the associations between working memory span and clinical symptoms

2014 ◽  
Vol 29 (8) ◽  
pp. 473-478 ◽  
Author(s):  
G. Brébion ◽  
C. Stephan-Otto ◽  
E. Huerta-Ramos ◽  
J. Usall ◽  
M. Perez del Olmo ◽  
...  
Keyword(s):  
Working Memory ◽  
Processing Speed ◽  
Memory Impairment ◽  
Negative Symptoms ◽  
Memory Span ◽  
Clinical Symptoms ◽  
Verbal Working Memory ◽  
Motor Speed ◽  
Speed Measure ◽  
Cognitive Speed

AbstractObjectiveVerbal working memory span is decreased in patients with schizophrenia, and this might contribute to impairment in higher cognitive functions as well as to the formation of certain clinical symptoms. Processing speed has been identified as a crucial factor in cognitive efficiency in this population. We tested the hypothesis that decreased processing speed underlies the verbal working memory deficit in patients and mediates the associations between working memory span and clinical symptoms.MethodForty-nine schizophrenia inpatients recruited from units for chronic and acute patients, and forty-five healthy participants, were involved in the study. Verbal working memory span was assessed by means of the letter-number span. The Digit Copy test was used to assess motor speed, and the Digit Symbol Substitution Test to assess cognitive speed.ResultsThe working memory span was significantly impaired in patients (F(1,90) = 4.6, P < 0.05). However, the group difference was eliminated when either the motor or the cognitive speed measure was controlled (F(1,89) = 0.03, P = 0.86, and F(1,89) = 0.03, P = 0.88). In the patient group, working memory span was significantly correlated with negative symptoms (r = –0.52, P < 0.0001) and thought disorganisation (r = –0.34, P < 0.025) scores. Regression analyses showed that the association with negative symptoms was no longer significant when the motor speed measure was controlled (β = –0.12, P = 0.20), while the association with thought disorganisation was no longer significant when the cognitive speed measure was controlled (β = –0.10, P = 0.26).ConclusionsDecrement in motor and cognitive speed plays a significant role in both the verbal working memory impairment observed in patients and the associations between verbal working memory impairment and clinical symptoms.

Sign in / Sign up

Export Citation Format

Share Document