Read by QxMD icon Read

Journal of Clinical and Experimental Neuropsychology

Rayna B Hirst, Kaitlyn R Young, Louise M Sodos, Robert E Wickham, Mitch Earleywine
INTRODUCTION: While many studies suggest that regular cannabis use leads to deficits in cognitive functioning, particularly in memory, few have measured effort put forth during testing, and none have examined this as a potential mediator. Both age of onset of regular cannabis use and frequency of use have been linked to increased risk of memory deficits. The present study sought to determine whether effort mediated the relationship between frequency or age of onset of cannabis use and learning and memory performance...
October 18, 2016: Journal of Clinical and Experimental Neuropsychology
Shannon B Juengst, Galen Switzer, Byung Mo Oh, Patricia M Arenth, Amy K Wagner
INTRODUCTION: Behavioral changes often occur after moderate-to-severe traumatic brain injury (TBI) and can lead to poor health, psychosocial functioning, and quality of life. Challenges in evaluating these behaviors often result from the complexity and variability in the way they are conceptualized and defined. We propose and test a conceptual model that is specific to behavioral symptoms after TBI, to serve as a basis for better assessment and treatment. We hypothesized that clusters of individuals, with unique emotional, cognitive, and behavioral characteristics, would emerge that would illustrate this conceptual model...
October 17, 2016: Journal of Clinical and Experimental Neuropsychology
Matthew Calamia, John P K Bernstein
INTRODUCTION: Depressive symptoms are common in patients assessed by neuropsychologists, and these symptoms can have an effect on cognitive functioning. Discrepancies between patient- and informant-reported depressive symptoms have been found in some diagnostic groups, raising concerns as to the value of assessing depressive symptoms via self-report alone. This study aimed to examine the relationship between these discrepancies and cognitive functioning in a heterogeneous outpatient neuropsychological sample...
October 16, 2016: Journal of Clinical and Experimental Neuropsychology
Sydney Y Schaefer, Kevin Duff
Practice effects on neuropsychological tests, which are improvements in test scores due to repeated exposure to testing materials, are robust in healthy elders, but muted in older adults with cognitive disorders. Conversely, few studies have investigated practice effects on motor tasks involving procedural memory, particularly across test-retest periods exceeding 24 hours. The current study examined one-week practice effects on a novel upper extremity motor task in 54 older adults with amnestic mild cognitive impairment...
October 3, 2016: Journal of Clinical and Experimental Neuropsychology
Wesley R Cole, Jacques P Arrieux, Elizabeth M Dennison, Brian J Ivins
Computerized neurocognitive assessment tools (NCATs) have become a common way to assess postconcussion symptoms. As there is increasing research directly comparing multiple NCATs to each other, it is important to consider the impact that order of test administration may have on the integrity of the results. This study investigates the impact of administration order in a study of four different NCATs; Automated Neuropsychological Assessment Metrics (ANAM4), CNS Vital Signs (CNS-VS), CogState, and Immediate Post-Concussion Assessment and Cognitive Test (ImPACT)...
October 3, 2016: Journal of Clinical and Experimental Neuropsychology
Barbara M Ruf, Katie L Bessette, Godfrey D Pearlson, Michael C Stevens
INTRODUCTION: Attention-deficit/hyperactivity disorder (ADHD) and anxiety are frequently comorbid disorders associated with different types of abnormal performance on neuropsychological tests. Although some studies have shown that comorbid anxiety alters ADHD test performance, results inconsistently show both improvements and worsening of different abilities, with failures to replicate across different anxiety disorders. Alternatively, trait anxiety may reflect a more stable influence on ADHD test performance than various diagnosable anxiety disorders...
October 3, 2016: Journal of Clinical and Experimental Neuropsychology
Thomas P Schmidt, David L Pennington, Stephanie L Cardoos, Timothy C Durazzo, Dieter J Meyerhoff
INTRODUCTION: Intact neurocognition and early cognitive recovery during abstinence are important for substance use treatment outcome. Yet, little is known about them in the largest group of treatment seekers today, individuals with polysubstance use disorders (PSU). This study primarily contrasted PSU and individuals with an alcohol use disorder (AUD) on neurocognitive and inhibitory control measures and, secondarily, measured changes during abstinence in PSU. METHOD: At one month of abstinence from all substances except tobacco, 36 PSU and 69 AUD completed neurocognitive assessments of executive function, general intelligence, auditory-verbal learning/memory, visuospatial learning/memory/skills, processing speed, working memory, fine motor skills, and cognitive efficiency...
October 3, 2016: Journal of Clinical and Experimental Neuropsychology
Menahem Yeari, Adi Avramovich, Rachel Schiff
INTRODUCTION: Previous studies have demonstrated that students with attention-deficit/hyperactivity disorder (ADHD) struggle particularly with grasping the implicit, inferential level of narratives that is crucial for story comprehension. However, these studies used offline tasks (i.e., after story presentation), used indirect measurements (e.g., identifying main ideas), and/or yielded inconclusive results using think-aloud techniques. Moreover, most studies were conducted with preschool or elementary school children with ADHD, using listening or televised story comprehension...
September 29, 2016: Journal of Clinical and Experimental Neuropsychology
Maya Elin O'Neil, Megan Callahan, Kathleen F Carlson, Mai Roost, Benjamin Laman-Maharg, Elizabeth W Twamley, Grant L Iverson, Daniel Storzbach
OBJECTIVE: This study examined symptom reporting related to the 10th Edition of the International Statistical Classification of Diseases and Related Health Problems (ICD-10) criteria for postconcussional syndrome (PCS) in Operation Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF) Veterans. Our aims were to: (a) examine relationships among PCS symptoms by identifying potential subscales of the British Columbia Postconcussion Symptom Inventory (BC-PSI); and (b) examine group differences in BC-PSI items and subscales in Veterans with and without blast exposure, mild traumatic brain injury (mTBI), and posttraumatic stress disorder (PTSD)...
September 28, 2016: Journal of Clinical and Experimental Neuropsychology
Ana Rita Silva, Maria Salomé Pinho, Luís Macedo, Céline Souchay, Christopher Moulin
INTRODUCTION: There is a debate about the ability of patients with Alzheimer's disease to build an up-to-date representation of their memory function, which has been termed mnemonic anosognosia. This form of anosognosia is typified by accurate online evaluations of performance, but dysfunctional or outmoded representations of function more generally. METHOD: We tested whether people with Alzheimer's disease could adapt or change their representations of memory performance across three different six-week memory training programs using global judgements of learning...
September 27, 2016: Journal of Clinical and Experimental Neuropsychology
J E Scott, J L Mathias, A C Kneebone, J Krishnan
Whether total joint replacement (TJR) patients are susceptible to postoperative cognitive dysfunction (POCD) remains unclear due to inconsistencies in research methodologies. Moreover, cognitive reserve may moderate the development of POCD after TJR, but has not been investigated in this context. The current study investigated POCD after TJR, and its relationship with cognitive reserve, using a more rigorous methodology than has previously been utilized. Fifty-three older adults (aged 50+) scheduled for TJR were assessed pre and post surgery (6 months)...
September 27, 2016: Journal of Clinical and Experimental Neuropsychology
Karen A Sullivan, Christina Wade
INTRODUCTION: A controlled experiment of the effect of injury cause on expectations of outcome from mild traumatic brain injury (TBI) was conducted. METHOD: Ninety-three participants were randomly assigned to one of four conditions. The participants read a vignette that described a mild TBI (with fixed injury parameters) from a different cause (sport, domestic assault, fall, or motor vehicle accident). The effect of the manipulation on expectations of persistent postconcussion symptoms and psychological trauma was assessed with standard measures and a novel "threat-to-life" measure...
September 23, 2016: Journal of Clinical and Experimental Neuropsychology
Sean Brennan, Declan M McLoughlin, Redmond O'Connell, John Bogue, Stephanie O'Connor, Caroline McHugh, Mark Glennon
INTRODUCTION: Transcranial direct current stimulation (tDCS) can enhance a range of neuropsychological functions but its efficacy in addressing clinically significant emotion recognition deficits associated with depression is largely untested. METHOD: A randomized crossover placebo controlled study was used to investigate the effects of tDCS over the left dorsolateral prefrontal cortex (L-DLPFC) on a range of neuropsychological variables associated with depression as well as neural activity in the associated brain region...
September 23, 2016: Journal of Clinical and Experimental Neuropsychology
Laura Anne Wortinger, Tor Endestad, Annika Maria D Melinder, Merete Glenne Øie, Dag Sulheim, Even Fagermoen, Vegard Bruun Wyller
INTRODUCTION: Studies of neurocognition suggest that abnormalities in cognitive control contribute to the pathophysiology of chronic fatigue syndrome (CFS) in adolescents, yet these abnormalities remain poorly understood at the neurobiological level. Reports indicate that adolescents with CFS are significantly impaired in conflict processing, a primary element of cognitive control. METHOD: In this study, we examine whether emotional conflict processing is altered on behavioral and neural levels in adolescents with CFS and a healthy comparison group...
September 20, 2016: Journal of Clinical and Experimental Neuropsychology
Jean Ikanga, Elizabeth M Hill, Douglas A MacDonald
INTRODUCTION: The examination of cognitive reserve (CR) literature reveals a lack of consensus regarding conceptualization and pervasive problems with its measurement. This study aimed at examining the conceptual nature of CR through the analysis of reflective and formative models using eight proxies commonly employed in the CR literature. We hypothesized that all CR proxies would significantly contribute to a one-factor reflective model and that educational and occupational attainment would produce the strongest loadings on a single CR factor...
September 20, 2016: Journal of Clinical and Experimental Neuropsychology
Kevin Duff, Taylor J Atkinson, Kayla R Suhrie, Bonnie C Allred Dalley, Sydney Y Schaefer, Dustin B Hammers
Practice effects are improvements on cognitive tests as a result of repeated exposure to testing material. However, variability exists in the literature about whether patients with amnestic mild cognitive impairment (MCI) display practice effects, which may be partially due to the methods used to calculate these changes on repeated tests. The purpose of the current study was to examine multiple methods of assessing short-term practice effects in 58 older adults with MCI. The cognitive battery, which included tests of memory (Hopkins Verbal Learning Test-Revised and Brief Visuospatial Memory Test-Revised) and processing speed (Symbol Digit Modalities Test and Trail Making Test Parts A and B), was administered twice across one week...
September 20, 2016: Journal of Clinical and Experimental Neuropsychology
Elise Labonte-Lemoyne, Daniel Curnier, Dave Ellemberg
Accumulating research indicates that the regular practice of physical exercise is beneficial to the human brain. From the improvement of academic achievement in children to the prevention of Alzheimer's disease in the elderly, exercise appears beneficial across the developmental spectrum. Recent work from animal studies also indicates that a pregnant mother can transfer the benefits of exercise during gestation to her offspring's brain. Exercising pregnant rats give birth to pups that have better memory and spatial learning as well as increased synaptic density...
September 13, 2016: Journal of Clinical and Experimental Neuropsychology
Timothy A Salthouse
OBJECTIVE: Although performance on memory and other cognitive tests is usually assessed with a score aggregated across multiple items, potentially valuable information is also available at the level of individual items. METHOD: The current study illustrates how analyses of variance with item as one of the factors, and memorability analyses in which item accuracy in one group is plotted as a function of item accuracy in another group, can provide a more detailed characterization of the nature of group differences in memory...
September 12, 2016: Journal of Clinical and Experimental Neuropsychology
Joukje M Oosterman, Sophie M Heringa, Roy P C Kessels, Geert Jan Biessels, Huiberdina L Koek, Joseph H R Maes, Esther van den Berg
INTRODUCTION: Rule induction tests such as the Wisconsin Card Sorting Test require executive control processes, but also the learning and memorization of simple stimulus-response rules. In this study, we examined the contribution of diminished learning and memorization of simple rules to complex rule induction test performance in patients with amnestic mild cognitive impairment (aMCI) or Alzheimer's dementia (AD). METHOD: Twenty-six aMCI patients, 39 AD patients, and 32 control participants were included...
September 12, 2016: Journal of Clinical and Experimental Neuropsychology
Octávio Moura, Marcelino Pereira, Cláudia Alfaiate, Eva Fernandes, Boavida Fernandes, Susana Nogueira, Joana Moreno, Mário R Simões
INTRODUCTION: This study aimed to investigate the neurocognitive functioning of children with developmental dyslexia (DD) and attention-deficit/hyperactivity disorder (ADHD). METHOD: Four groups of children between the ages of 8 and 10 years participated in the study: typically developing children (TDC; N = 34), children with DD-only (N = 32), children with ADHD-only (N = 32), and children with DD+ADHD (N = 18). RESULTS: Children with DD and ADHD exhibited significant weaknesses on almost all neurocognitive measures compared with TDC...
September 12, 2016: Journal of Clinical and Experimental Neuropsychology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"