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Measuring individual corrective reaction time using the intermittent illumination model

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The corrective reaction time (t cr) is an essential motor property when modelling hand control movements. Many studies designed experiments to estimate t cr, but reported only group means with inconsistent definitions. This study proposes an alternative methodology using Drury's (1994) intermittent illumination model. A total of 24 participants performed circular tracking movements under five levels of visual information delay using a modified monitor in a darkened room. Measured movement speeds and the manipulated delays were used with the model to estimate t cr of individuals and test effects of gender and path width. The results showed excellent model fits and demonstrated individual differences of t cr, which was 273 ms on average and ranged from 87 to 441 ms. The wide range of t cr values was due to significant effects of gender and path width. Male participants required shorter t cr compared to female participants, especially for narrow path widths.
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Keywords: ballistic movement; corrective reaction time; hand control movement; intermittent correction servo; visual processing time

Document Type: Research Article

Affiliations: Department of Industrial Engineering and Management, Yuan Ze University, Chung-li, Taiwan

Publication date: September 2, 2014

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