Validity and utility of the cognitive drug research (CDR) computerised cognitive testing system: A review following fifteen years of usage

Wesnes, K. A.; Ward, Taeh; Ayre, G.; Pincock, Claire

doi:10.1016/s0924-977x(99)80576-8

Cited by 20 publications

(21 citation statements)

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“…The power of attention factor, a measure of allocation of attentional processing to a particular task, combined the speed scores (reflective of concentration intensity) from the simple reaction time, choice reaction time, and the digit vigilance tasks. 50,52 The quality of working memory factor indicated the capacity to hold information, without having learnt it beforehand, temporarily in the two subsystems of working memory, the articulatory loop, and the visual-spatial scratchpad. 52 This factor score was derived from the sum of the numeric working memory sensitivity and spatial working memory sensitivity scores.…”

Section: Methodsmentioning

confidence: 99%

“…51 These subtests were also chosen as a composite of previous research findings and pragmatics of time and practicality. 50,52 The CDR neuropsychological tasks involved two training sessions on separate days before the baseline to minimize practice effects.…”

Section: Methodsmentioning

confidence: 99%

“…48 Participants were also assessed with the Bechara social decision-making Task 49 and Cognitive Drug Research Battery (CDR). 50 The CDR battery is a computerized neuropsychological battery of tests utilizing ''yes'' and ''no'' answers with a remote binary switch. The subtests used in this study's battery were word presentation, immediate word recall, picture presentation, simple reaction time, digit vigilance, choice reaction time, spatial working memory, numeric working memory, delayed word recall, delayed word recognition, picture recognition, and finger tapping tasks.…”

Section: Methodsmentioning

confidence: 99%

“…The individual CDR subtests were combined into the following factors, based on internally consistent factor analyses of the CDR system 50 : speed of memory index; power of attention; and quality of working memory. The speed of memory index combined the speed scores from the episodic word and picture recognition tasks and the spatial and numerical working memory tasks.…”

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Neuropsychological study of underweight and “weight‐recovered” anorexia nervosa compared with bulimia nervosa and normal controls

Bosanac

Kurlender

Stojanovska

et al. 2007

Intl J Eating Disorders

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Neuropsychological study of underweight and “weight‐recovered” anorexia nervosa compared with bulimia nervosa and normal controls

Bosanac

Kurlender

Stojanovska

et al. 2007

Intl J Eating Disorders

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“…The above measures were collapsed into four global outcome factors, and two sub-factors derived from the battery by factor analysis, as previously utilised (Kennedy et al, 2000(Kennedy et al, , 2001Wesnes et al, 1997Wesnes et al, ,1999Wesnes et al, , 2000.…”

Section: Primary Cognitive Outcome Measuresmentioning

confidence: 99%

Modulation of Cognitive Performance and Mood by Aromas of Peppermint and Ylang-Ylang

Moss

Hewitt

Moss

et al. 2008

International Journal of Neuroscience

146

118

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This study provides further evidence for the impact of the aromas of plant essential oils on aspects of cognition and mood in healthy participants. One hundred and forty four volunteers were randomly assigned to conditions of Ylang-Ylang aroma, Peppermint aroma, or no aroma control. Cognitive performance was assessed using the Cognitive Drug Research computerised assessment battery, with mood scales completed before and after cognitive testing. The analysis of the data revealed significant differences between conditions on a number of the factors underpinning the tests that constitute the battery.Peppermint was found to enhance memory whereas Ylang-Ylang impaired it, and lengthened processing speed. In terms of subjective mood Peppermint increased alertness and Ylang-Ylang decreased it, but significantly increased calmness. These results provide support for the contention that the aromas of essential oils can produce significant and idiosyncratic effects on both subjective and objective assessments of aspects of human behaviour. They are discussed with reference to possible pharmacological and psychological modes of influence.2

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The effects of protective helmet use on physiology and cognition in young cricketers

Neave

Emmett

Moss

et al. 2004

Applied Cognitive Psychology

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Many studies have reported physiological and cognitive decrements following heat stress. Of particular concern in cricket are the possible negative effects of sustained protective helmet use, as this leads to an increase in heat-related stress. Correct and rapid decision making, and focused attention are essential for efficient performance whilst batting, and it is possible that helmet usage could impair such processes. In a repeated-measures, randomized crossover study, physiological, self-report, and cognitive measures were taken from 16 teenage cricketers before and after moderately intense (batting) exercise. Participants underwent the assessments twice, once while wearing a standard protective helmet, and again, when not wearing a helmet (counterbalanced). While helmet use did not lead to significant physiological changes, wearing a helmet led to some cognitive impairments in attention, vigilance and reaction times. These preliminary findings could have significance for cognitively demanding sports (and perhaps military and industrial settings) in which participants perform cognitively demanding operations under conditions of physical exercise whilst wearing protective helmets. Additional factors of hydration, exercise duration, and helmet design are discussed.

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Validity and utility of the cognitive drug research (CDR) computerised cognitive testing system: A review following fifteen years of usage

Cited by 20 publications

References 0 publications

Neuropsychological study of underweight and “weight‐recovered” anorexia nervosa compared with bulimia nervosa and normal controls

Neuropsychological study of underweight and “weight‐recovered” anorexia nervosa compared with bulimia nervosa and normal controls

Modulation of Cognitive Performance and Mood by Aromas of Peppermint and Ylang-Ylang

The effects of protective helmet use on physiology and cognition in young cricketers

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