Introduction - This paper is aimed at gaining more insight into the effects of camera-surveillance on behavior. This study investigates the effects of three different ways of ‘framing’ camera presence on cheating behavior and pro-social behavior. First, we explore the effect of presenting the camera as the medium through which an intimidating authority watches the participant. Second, we test the effect of presenting the camera as being a neutral, non-intimidating viewer. Third, we investigate whether a participant watching themselves via a (...) camera has an effect on their behavior. In contrast to most studies of camera surveillance, we will conduct our experiments in an indoor setting, enabling us to investigate behavior to a much greater detail. We will also explore possible moderating effects of personality traits. Methods - 86 students participated in this experiment, distributed over four conditions: three different ways of framing the camera presence, plus a control condition. Our main dependent variables were various kinds of cheating and pro-social behavior. We established the participant’s relevant personality traits in a separate session. Results - For cheating behavior, findings showed that the ‘authorative’ way of framing camera presence and the situation in which participants viewed themselves, differed significantly from a situation without camera-surveillance. We did not find significant effects of camera surveillance on pro-social behavior during the experiment. Looking at personality traits, we found an indication that people with an internal locus of control are more inclined to cheat when there is no camera present compared to people with an external locus of control. However, the effects of our manipulations were stronger. Conclusion - These results support the idea that the framing of a camera’s presence does indeed influence cheating behavior, adding to the preventive effects of camera-surveillance. Additionally, this study provides some valuable insights into the influence of camera presence on behavior in general. (shrink)

In the literature the term “natural balance” occurs frequently and is used for highly divergent collections of facts and for results arrived at by different methods. In this paper it is attempted to give a review of the many possible meanings of “balance in nature”, and to evaluate the application of the term in the scientific literature.To achieve this twofold objective it seemed useful to start by giving as objective as possible a description of the “balance situation” in natural communities, (...) in analogy with the original physical concept and according to strict scientific criteria. On the basis of this working standard, part of the ecological literature is discussed with respect to statements and presumptions concerning “balance”. The extensive literature is classified according to several groups, on the one hand on the basis of the nature of the views , on the other hand according to the importance that certain authors attach to the theory of a given author. For each of these groups, an evaluation of the content of the term “balance” is given. It was found that the reasoning is not always sound and that the nature of the data on which the concept is based varies widely, which also holds for the method of reasoning applied in the conclusions drawn. In none of the publications arguments were found supporting the existence of a natural “balance situation” as formulated in the standard description. Consequently, it seemed justified to conclude that it is not correct to apply a concept “natural balance”, defined purely scientifically, to natural situations, either because “balance” in the indicated sense is simply not present or because the situation under consideration is not a natural one . The concept “natural balance” has had only heuristic value for scientific research. In other contexts it has a different value, because there criteria other than scientific or methodological ones hold for the content of a concept. It is therefore not objectionable to use the term “natural balance” in common parlance, especially since this usage makes it possible to convey to the layman a great deal in few words. (shrink)