Reliability and validity of a quick test of cognitive speed (AQT) in screening for mild cognitive impairment and dementia.

Background: Cognitive disorders are one of the important issues in old age. There are many cognitive tests, but some variables affect their results (e.g.

Differentiating depression and ADHD without depression in adults with processing-speed measures.

Objective: We evaluated processing-speed and shift-cost measures in adults with depression or attention-deficit hyperactivity disorder (ADHD) and monitored the effects of treatment. We hypothesised that cognitive-speed and shift-cost measures might differentiate diagnostic groups.

Methods: Colour, form, and colour-form stimuli were used to measure naming times.

Methylphenidate effects on processing speed in a clinical sample of adults with ADHD and substance use disorder: a pilot study.

Background: Substance use disorders (SUDs) are common comorbidities of Attention Deficit Hyperactivity Disorder (ADHD). The most commonly prescribed medication for ADHD is methylphenidate. The clinical response to methylphenidate may be monitored against DSM-5 symptomatology, rating scales or interviews.

Processing speed can monitor stimulant-medication effects in adults with attention deficit disorder with hyperactivity.

Background: Treatment responses to methylphenidate by adults with ADHD are generally monitored against DSM-IV/DSM-V symptomatology, rating scales or interviews during reviews.

Aims: To evaluate the use of single- and dual-dimension processing-speed and efficiency measures to monitor the effects of pharmacological treatment with methylphenidate after a short period off medication.

Methods: A Quick Test of Cognitive Speed (AQT) monitored the effects of immediate-release methylphenidate in 40 previously diagnosed and medicated adults with ADHD.

Stroop interference and AQT cognitive speed may play complementary roles in differentiating dementias with frontal and posterior lesions.

Forty neurotypical adults (ages 65-74) were administered three different assessments, as follows: Montreal Cognitive Assessment (MoCA), A Quick Test of Cognitive Speed (AQT), and Stroop Color and Word Test. Correlation coefficients (Pearson r) indicated a significant but moderate association between MoCA scores and AQT dual-dimension processing speed (p < 0.01).

A Quick Test of Cognitive Speed: norm-referenced criteria for 121 Italian adults aged 45 to 90 years.

Background: A Quick Test of Cognitive Speed (AQT) is a brief test that can identify cognitive impairment. AQT has been validated in Arabic, English, Greek, Japanese, Norwegian, Spanish, and Swedish. The aim of this study was to develop Italian criterion-referenced norms for AQT.

A quick test of cognitive speed: preliminary screening criteria for Arabic-speaking adults, ages 40 to 80 years.

A Quick Test of Cognitive Speed (AQT) color, form, and color-form scales were administered to 90 educated (5-22 years of education) and 45 uneducated (0-2 years of education) healthy, Arabic-speaking adults. Lognormal (In) transformations of time measures (sec.) were used for statistical analyses.

A quick test of cognitive speed for comparing processing speed to differentiate adult psychiatric referrals with and without attention-deficit/hyperactivity disorders.

Objective: This retrospective study used A Quick Test of Cognitive Speed (AQT) to compare processing speed and efficiency measures by adults with attention-deficit/hyperactivity disorder (ADHD) or non-ADHD psychiatric disorders and healthy controls.

Method: Color, form, and color-form combination naming tests were administered to 104 adults, ages 17-55 years, referred for psychiatric evaluation of possible ADHD. Thirty healthy adults were controls.

Validation of the AQT color-form additive model for screening and monitoring pharmacological treatment of ADHD.

Objective: This retrospective study used a quick test of cognitive speed (AQT) processing-speed and efficiency measures for evaluating sensitivity and monitoring effects during pharmacological treatment of adults with ADHD.

Method: Color (C), form (F), and color-form (CF) combination naming were administered to 69 adults during outpatient evaluation, and pre- and posttreatment results were compared for 64 adults.

Results: At intake without medication, naming times (s) were significantly longer and overhead, CF - (C + F), larger than after stabilization of ADHD symptoms.

AQT cognitive speed and processing efficiency differentiate adults with and without ADHD: a preliminary study.

Objective: We evaluated the hypotheses that A Quick Test of Cognitive Speed (AQT) single- and dual-dimension naming speed measures would differentiate normal adults and adults with ADHD before medication and that there would be no differences between groups after stabilization with medication.

Methods: Thirty adults with ADHD, aged 18-43, were evaluated with the AQT color (C), form (F) and color-form combination (CF) naming tests before and after medication with methylphenidate. Thirty age- and sex-matched normal adults served as controls.

An additive model for relations between AQT single- and dual-dimension naming speed.

Color-form naming in A Quick Test of Cognitive Speed (AQT) is used to assess processing speed on three rapid automatic naming tasks, two of which measure single-dimension and the third of which measures dual-dimension naming speed. These tests have been used to identify changes in processing speed associated with normal aging. The present study evaluated whether a simple additive model could explain the normally expected relation between scores on measures of single- and dual-dimension naming speed.

Multicultural issues in test interpretation.

Designing the ideal test or series of tests to assess individuals who speak languages other than English is difficult. This article first describes some of the roadblocks-one of which is the lack of identification criteria for language and learning disabilities in monolingual and bilingual populations in most countries of the non-English-speaking world. This lag exists, in part, because access to general education is often limited.

Reductions in 'Ross Information Processing Test-Geriatric' information processing and 'A Quick Test of Cognitive Speed' processing speed in Alzheimer's disease: which lead and which follow?

Our objective was to obtain preliminary evidence for an order of emergence of measurable reductions in cognitive-linguistic abilities and processing/naming speed. A total of 22 patients with mild-to-moderate Alzheimer's disease (AD) or mild cognitive impairment and 22 age- and sex-matched controls participated. Ross Information Processing Test-Geriatric (RIPA-G) evaluated functional information processing and A Quick Test of Cognitive Speed (AQT) measured naming speed (s) for familiar single-dimension (e.

A Quick Test of Cognitive Speed: patterns of age groups 15 to 95 years.

A Quick Test of Cognitive Speed color, form, and color-form naming were administered to 300 normal participants (ages 15-95 years) to explore the effects of age on perceptual (single-dimension naming) and cognitive speed (dual-dimension naming). Naming time means (sec.) were consistent with previous findings.

A Quick Test for Cognitive Speed: a measure of cognitive speed in dementia with Lewy bodies.

The purpose of this article is to investigate how patients with dementia with Lewy bodies (DLB) perform on A Quick Test for Cognitive Speed (AQT) compared with patients with Alzheimer's disease (AD) and age- and sex-matched controls and to see whether this test might be helpful in distinguishing DLB from AD at comparable cognitive levels. Twenty-three patients with DLB, 18 patients with AD, and 24 controls were included. The time in seconds to complete the AQT was recorded for the 3 independent study groups according to standard directives.

Associations between AQT processing speed and neuropsychological tests in neuropsychiatric patients.

Associations between A Quick Test of Cognitive Speed (AQT) perceptual and cognitive speed and neuropsychological tests, including the Wechsler Adult Intelligence Scale-Third Edition (WAIS-III), Mini Mental State Examination (MMSE), and the Trail Making Test (TMT), were evaluated in 41 neuropsychiatric patients. Neuropsychological and neurological tests, including CT scan, were administered to all of the patients. AQT was also administered to 75 controls.

Alzheimer's Quick Test cognitive screening criteria for West African speakers of Krio.

Objectives: To obtain normative data for Alzheimer's Quick Test (AQT) measures of perceptual and cognitive speed from West African speakers of Krio.

Subjects: Normal adults, who were functionally independent, from Sierra Leone (n = 164) aged 25-79 years.

Methods: Perceptual and cognitive speed were measured with AQT single- and dual-dimension colour-number (C-N) and colour-animal (C-A) naming tasks.

Clinical utility of color-form naming in Alzheimer's disease: preliminary evidence.

Performances on Alzheimer's Quick Test color-form naming and Mini-Mental State Examination were compared for 38 adults with Alzheimer's disease and 38 age- and sex-matched normal controls. Group means differed significantly and indicated longer naming times by adults with Alzheimer's disease. The specificity for AQT color-form naming was 97% and sensitivity 97%, i.

Multiple rapid automatic naming measures of cognition: normal performance and effects of aging.

Rapid automatic naming tasks are clinical tools for probing brain functions that underlie normal cognition. To compare performance for various stimuli in normal subjects and assess the effect of aging, we administered six single-dimension stimuli (color, form, number, letter, animal, and object) and five dual-dimension stimuli (color-form, color-number, color-letter, color-animal, and color-object) to 144 normal volunteers who ranged in age from 15 to 85 years. Rapid automatic naming times for letters and numbers were significantly less than for forms, animals, and objects.

Parietal lobe activation in rapid, automatized naming by adults.

Three automatic naming tasks (Wiig & Nielsen, 1999) were administered to 60 normally functioning adults. The mean time required for naming 40 single-dimension (colors, forms, numbers, and letters) and 40 dual-dimension stimuli (color-form, color-number, and color-letter combinations) were compared in young (17-38 yr.) and older (40-68 yr.