Your question is a good one. During the Neolithic era, art was primarily based in the realm of small societies on the brink of agriculture and civilization. During periods of either drought or periods of harsh winters, humans would often change in ways not so different than our own for instance lets looks at a famous Neolithic civilization known as Çatalhöyük, found in Anatolia. This site had elements of pottery, statues and changes in farming techniques. During period of famine or harsh times art such as pottery was probably more likely valued as it served a purpose and function. They would have also possibly prayed more to gods or raised animals that were heartier to the upcoming environmental changes. Another site that can be examined is the famous Stonehenge. As many art historians put forth this site could have been used for aa variety of reasons, not withstanding a seasonal clock, place of worship, or a meeting place for leaders. If we go with the seasonal clock theory, there is evidence that suggests that it had undergone many modifications over its millennia of use, and one can theorize that this was either evidence for adapting to the changes in climate for harvest or hunting. Culture wise overall it can be said that ancient humans were just as ingenious and adaptable as we are today and likewise many Neolithic cultures adapted with preference possibly to actions and needs and possibly even governance.