leisure activities were primarily of the unplanned, short-duration type. 

 Leisure activities were observed in all parts of the habitat, but especially 

 in the bridge and crew quarters. View ports, audio cassette, and books are 

 among the leisure items that are well received by the crew because of their 

 capacity to provide novelty in intermittent situations. 



4. How important is food to habi tabi 1 i ty ; what do crewmen enjoy, and what 

 do they complain about? 



The aquanauts felt that food was very important. There were far fewer com- 

 plaints about food when they could select their own food even though the 

 initial reaction to the preprogrammed food was very positive. 



5. To what extent do work provisions influence overall attitude toward the 

 habitat? 



The results of this program have lead to the conclusion that the single most 

 important variable in the perceived habitability of this habitat was the degree 

 to which aquanauts found the habitat supportive of their scientific and engi- 

 neering tasks. It is logical to assume that their finding can be generalized 

 to many other habitats and situations. 



6. How do crew reactions to the habitat change with increased mission 

 duration? 



In general, although the initial impression of the habitat was highly positive, 

 there is a clear tendency for these positive attitudes to decline with increasing 

 lengths of stay in the habitat. Mission duration had a rather strong effect 

 on many of the variables followed in this research (see 2 above). Almost all 

 attitudes concerning life quality in the habitat were less positive in longer 

 duration habitation periods, although the exception was attitude toward topside. 

 Aquanauts shifted toward rather flat and unemotional dispositional states with 

 longer duration stays, and showed less activation and less concentration. They 

 also tended to work less and sleep more in terms of average proportion per day 

 in the longer duration periods. 



7. How is the personality of a crewman related to his opinion of, or adapta- 

 tion to, the habitat? 



The principal personality factors that correlate with adaptation to the habitat 

 are intelligence and lack of suspiciousness. 



8. Do scientists and engineers view the habitat differently? 



The data indicate that, for other than task-related considerations, there is 

 no apparent difference between scientists and engineers on any rating or atti- 

 tude toward the habitat. 



\^II-88 



