270 HUMAN BEHAVIOR PROGRAM 



9. Is tactful 



10. Keeps his mind always on the job 



11. Doesn't waste time or energy 



12. Ability to mind own business 



13. Previous experience working with the team 



14. Is the kind of person you could tell your troubles to if you felt like it 



15. Doesn't get too personal 



16. Age 



17. Has led the same general kind of life you have 



Although all indications are that high levels of motivation and morale are maintained, it 

 must be kept in mind that the novelty of the situation may have played an important role. The 

 nextiew man-in-the-sea projects may likewise have no morale problems. If, however, large 

 numbers of men are to be chosen in the future for undersea operations, it is important to 

 gather data on which selection criteria can be based. 



In summary, it can be stated that the team effort was a success, interest and morale was 

 high, useful work was accomplished, and that much was learned that will benefit both the scien- 

 tific community and the Operational Navy. 



CONCLUSIONS 



Much of the data analysis has not been completed at the time of writing this report. There 

 are, however, some conclusions which can be made at this time. 



Psychomotor Tests 



1. The results of a lift and pull strength test showed a decrease in exertable strength be- 

 tween dry land and Sealab. 



2. The individual triangle assembly (manual dexterity) tests reveal a 3 7 -percent decrease 

 in performance between dry land and Sealab. 



3. The two-hand coordination test shows a 17-percent decrement in performance in Sealab. 



4. The three-dimensional group assembly task took twice as long in Sealab as on dry land. 



Visual Tests 



1. It was found that a black target was seen at significantly greater distances than either a 

 white or yellow target at a depth of 205 ft in ambient light. 



2. It was observed that the white habitat was far more visible than the orange/red person- 

 nel transfer capsule. 



Mental Arithmetic Tests 



No decrement was found between predive and Sealab tests. 



Audiometric Test 



Little change between pre- and postdive exposure tests were found in hearing levels for 

 frequencies in the speech range (below 3000 cps), but a trend was indicated for hearing loss at 

 the higher test frequencies (3000 to 6000 cps). 



