A DEVICE AND TESTS FOR MEASURING INTELLECTUAL FUNCTIONS DURING ACCELERATION

摘要

In manned space flights, a vehicle operator will be expected to perform control functions or act as a systems monitor under high levels of acceleration. To deter¬mine the extent to which man's intellectual functions might be impaired under high G, a device was designed for use with the WADD human centrifuge. This device, the Link Intellectual Functions Tester (LIFT), can be operated up to 14 G, and features automatic scoring, tabulation of responses, and automatic pacing of stimulus presentation.nThree test batteries of 14 one-minute tests were used to evaluate verbal, rea¬soning, mathematical, and perceptual abilities under the limitations of high G on the centrifuge. The median reliability of the one-minute tests was 0.27; the esti¬mated reliability of the 14-test battery was 0.83. Until new data actually gathered during acceleration are made available, the reliability of all the tests remains undetermined for any values above 1 G.