The<unk>  <unk><unk>  is a<unk>  battery of cognitive tests designed in the late 1970s by Professor Keith Wesnes at the University of Reading in Berkshire, England, for repeated testing in clinical trials. Task stimuli are presented in a laptop computer and participants respond via 'YES' and 'NO' buttons on a two-button response box, which records both the accuracy and reaction time. The<unk><unk>  is a computer based cognitive testing tool, developed to assess both enhancement and impairment of human cognitive performance. The<unk><unk> 's simplicity, sensitivity and specificity makes it acceptable to be used in clinical trials with either healthy subjects or diseased patient populations. The<unk><unk>  software is loaded onto laptop computers for testing in medical clinics. An internet version of the<unk><unk>  is available using keyboard commands to measure responses. Ancillary equipment is used for specific cognitive tests such as a postural stability (sway) meter, a critical flicker fusion device or joysticks for<unk> 's tracking test. The<unk><unk>  is a series of brief neuropsychological tests that assess major aspects of cognitive function known to be influenced by a wide variety of factors including trauma, fatigue, stress, nutrition, ageing, disease (both physical and mental), medicines and drugs. The standard battery of cognitive tests in The<unk><unk>  includes immediate/delayed word recall, word recognition, picture recognition, simple reaction time, digit vigilance, choice reaction time, numeric working memory, and spatial working memory. Individual tests can be added to or removed from the battery to target specific cognitive domains. Examples of tests that can be added include measurements of executive function, mood states, social cognition, motor function and postural stability. The standard battery of tests lasts 18 minutes. The<unk><unk>  tasks have proven validity in definitively measuring cognitive function in a variety of domains including attention, working memory, episodic secondary memory, executive function, and motor skill. In September, 2009, Cognitive Drug Research was acquired by United BioSource Corporation. UBC division Bracket continues to offer the<unk><unk>  for use in clinical research.
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