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First, there was a clear effect of having experiential knowledge. Although they still gave overestimates, people who reported having some experiential knowledge about hill slants gave lower, more accurate estimates than those who reported no knowledge. Similarly, we observed that our older participants gave estimates that were about the same as our knowledgable participants -- even if the older participants did not report having any specific knowledge, it still seemed like their life experience had made them better estimators.
In support of the idea that people were intentionally applying their knowledge rather than actually seeing the hills as less steep , we found that more conscientious people were more likely to use their knowledge show an effect of knowledge than less conscientious people. Were you surprised by what you found and how can your findings be applied in the future? Our findings are probably surprising to many because of the widespread belief that things like aging can make the world look different. But the perception of the geometry of the world, in itself, doesn't seem to be affected by aging, apart from possible effects of lost acuity.
This fits the idea that the overestimation of perceived hill slant is an adaption to the environment the predominance of shallow slants rather than a measure of individual strength or ability.
It is not possible to measure perception directly because perception is subjective, but there are lots of reasons to believe that people share a common perceptual experience, such as the impression that hills are much steeper than they are.
Our research helps to provide new ways to try to dissociate differences in judgment from genuine differences in perception. And whereas much research on aging emphasizes perceptual decline, when it comes to space perception for navigation, older adults do well. And they also seem to have acquired wisdom with their years about the difference between how thing seem and how things are.
This is a point well worth making. Materials provided by Swarthmore College. Original written by Mark Anskis. Note: Content may be edited for style and length. Science News. Below, Durgin answers a few questions about the study.
Without empirical backing, these individuals were able. Subscription Notification. We have noticed that there is an issue with your subscription billing details. Please update your billing details here. Please update your billing information. The subscription details associated with this account need to be updated.
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