Samenvatting
A compensatory tracking task (The Critical Tracking Task) requiring the operator to stabilize the output of an unstable system whose level of instability increase monotonically up to the critical point of loss of control is evaluated for its potential to discriminate between sober and intoxicated performances. Quantification of the results obtained in the laboratory controlled environment shows a great deal of promise, indicating that intoxicated failure rates of 50% for blood alcohol concentrations (BAC' s) at or above 0.1% and 75% for BAC' s at or above 0.14 can be attained with no sober failure rates.