Search Results - "Armstrong, Irene T."

Relation between reaction time and reach errors during visuomotor adaptation by Fernandez-Ruiz, Juan, Wong, William, Armstrong, Irene T., Flanagan, J. Randall

“…▶ Reaching under a visuomotor rotation leads to increases in reaction times. ▶ Subjects with larger reaction times show faster but unstable adaptations that…”
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Deficits in saccadic eye-movement control in Parkinson's disease by Chan, Florence, Armstrong, Irene T., Pari, Giovanna, Riopelle, Richard J., Munoz, Douglas P.

“…In contrast to their slowed limb movements, individuals with Parkinson's disease (PD) produce rapid automatic eye movements to sensory stimuli and show an…”
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The influence of stimulus direction and eccentricity on pro- and anti-saccades in humans by DAFOE, Joan M, ARMSTRONG, Irene T, MUNOZ, Doug P

“…We examined the sensory and motor influences of stimulus eccentricity and direction on saccadic reaction times (SRTs), direction-of-movement errors, and…”
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Altered Control of Visual Fixation and Saccadic Eye Movements in Attention-Deficit Hyperactivity Disorder by Munoz, Douglas P, Armstrong, Irene T, Hampton, Karen A, Moore, Kimberly D

“…Centre for Neuroscience Studies, Canadian Institute of Health Research Group in Sensory-Motor Systems, Department of Physiology, Queen's University, Kingston,…”
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Diagnostic Accuracy of the Conners’ Adult ADHD Rating Scale in a Postsecondary Population by Harrison, Allyson G., Nay, Sylvia, Armstrong, Irene T.

“…Objective: Clinicians frequently rely upon the results of self-report rating scales when making the diagnosis of ADHD; however, little research exists…”
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Predictive value of performance validity testing and symptom validity testing in psychoeducational assessment by Harrison, Allyson G., Beal, A. Lynne, Armstrong, Irene T.

“…Using archival data from 2463 psychoeducational assessments of postsecondary students we investigated whether failure on either symptom or performance validity…”
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What can we learn about performance validity from TOVA response profiles? by Pollock, Beth, Harrison, Allyson G., Armstrong, Irene T.

“…Given the functional impairments associated with Attention Deficit/Hyperactivity Disorder (AD/HD), a valid diagnosis is important. However, particularly when…”
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A comparison of the self-report patterns of analog versus real-world malingerers of attention deficit hyperactivity disorder by Harrison, Allyson G., Armstrong, Irene T.

“…Much of what we know about malingering of attention deficit hyperactivity disorder (ADHD) has been learned from the performance of analog malingerers,…”
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The impact of depression and anxiety on speed of academic performance and retrieval fluency in postsecondary students by Harrison, Allyson G., Beal, A. Lynne, Armstrong, Irene T.

“…Objective: This study evaluated the functional effects of severe mental health symptoms on speed of academic performance to assist clinicians and educators in…”
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Development of a symptom validity index to assist in identifying ADHD symptom exaggeration or feigning by Harrison, Allyson G., Armstrong, Irene T.

“…Objective: Concerns have been identified regarding the ease with which students and young adults can feign or exaggerate symptoms of ADHD, and no formal…”
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Discriminating malingered attention Deficit Hyperactivity Disorder from genuine symptom reporting using novel Personality Assessment Inventory validity measures by Harrison, Allyson G., Harrison, Kathleen A., Armstrong, Irene T.

“…It is now widely understood that ADHD can be feigned easily and convincingly. Despite this, almost no methods exist to assist clinicians in identifying when…”
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Base rates of non-credible performance in a post-secondary student sample seeking accessibility accommodations by Mascarenhas, Melanie A., Cocunato, Jessica L., Armstrong, Irene T., Harrison, Allyson G., Zakzanis, Konstantine K.

“…Objective: Performance Validity Tests (PVTs) have been used to identify non-credible performance in clinical, medicolegal, forensic, and, more recently,…”
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Learning disability documentation submitted by osteopathic medical students by Harrison, Allyson G., Lovett, Benjamin J., Keiser, Shelby, Armstrong, Irene T.

“…An increasing number of individuals are requesting disability accommodations on high-stakes licensing examinations, and neuropsychological evaluation reports…”
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Measurement of Working Memory on the Wechsler Adult Intelligence Scale: Should We Subtract Arithmetic? by Harrison, Allyson G., Beal, A. Lynne, Armstrong, Irene T., Gallagher, Anna

“…Deficits in working memory are often used as evidence to support the diagnosis of a neuropsychological disorder or acquired brain injury. Subtests that…”
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Comparing Canadian and American Normative Scores on the Wechsler Adult Intelligence Scale-Fourth Edition by HARRISON, Allyson G, ARMSTRONG, Irene T, HARRISON, Laura E, LANGE, Rael T, IVERSON, Grant L

“…Psychologists practicing in Canada must decide which set of normative data to use for the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV). The…”
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Implications for Educational Classification and Psychological Diagnoses Using the Wechsler Adult Intelligence Scale–Fourth Edition With Canadian Versus American Norms by Harrison, Allyson G., Holmes, Alana, Silvestri, Robert, Armstrong, Irene T.

“…Building on a recent work of Harrison, Armstrong, Harrison, Iverson and Lange which suggested that Wechsler Adult Intelligence Scale–Fourth Edition (WAIS-IV)…”
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Getting Back to the Main Point: A Reply to Miller et al by Harrison, Allyson G., Holmes, Alana, Silvestri, Robert, Armstrong, Irene T.

“…Miller et al. have challenged the findings of our two previous studies, based largely on the assumption that our findings are biased due to the clinical sample…”
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Higher Reported Levels of Depression, Stress, and Anxiety Are Associated With Increased Endorsement of ADHD Symptoms by Postsecondary Students by Harrison, Allyson G., Alexander, Sandra J., Armstrong, Irene T.

“…This study examined the extent to which postsecondary students endorse symptoms of Attention Deficit/Hyperactivity Disorder (ADHD) and whether experienced…”
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Waiting for a hand: saccadic reaction time increases in proportion to hand reaction time when reaching under a visuomotor reversal by Armstrong, Irene T, Judson, Melissa, Munoz, Douglas P, Johansson, Roland S, Flanagan, J Randall

“…Although eye movement onset typically precedes hand movement onset when reaching to targets presented in peripheral vision, arm motor commands appear to be…”
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Sensory biases produce alternation advantage found in sequential saccadic eye movement tasks by FECTEAU, Jillian H, AU, Crystal, ARMSTRONG, Irene T, MUNOZ, Douglas P

“…In two-choice reaction time tasks, participants respond faster when the correct decision switches across consecutive trials. This alternation advantage has…”
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