ASSESSMENT IN COGNITIVE TRAINING EXERCISES
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United States of America Patent
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Issued Date -
Jun 21, 2007
app pub date -
Aug 17, 2006
filing date -
Dec 13, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method on a computing device is provided for assessing a stimulus threshold of an older adult by requiring the adult to differentiate between rapidly presented stimuli. The method trains the time order judgment of the adult by presenting upward and downward frequency sweeps, in random order, separated by an inter-stimulus interval (ISI). Icons associated with the upward and downward frequency sweeps allow the adult to indicate an order in which the frequency sweeps are presented (i.e., UP-UP, UP-DOWN, DOWN-UP, and DOWN-DOWN). Correct/incorrect selection of an order causes the inter-stimulus interval and/or the duration of the frequency sweeps to be adaptively reduced/increased, using a maximum likelihood procedure, such as ZEST or QUEST, where two tracks, each with a respective duration and ISI, are adjusted until their values substantially converge, or a specified number of trials is performed. The threshold is determined by averaging the final values of the two tracks.
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