The effect of temporal context on object change detection

Loosen, Rian van (2023) The effect of temporal context on object change detection. Bachelor thesis, Psychology.

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A thesis is an aptitude test for students. The approval of the thesis is proof that the student has sufficient research and reporting skills to graduate but does not guarantee the quality of the research and the results of the research as such, and the thesis is therefore not necessarily suitable to be used as an academic source to refer to. If you would like to know more about the research discussed in this thesis and any publications based on it, to which you could refer, please contact the supervisor mentioned.

Abstract

To get a better understanding of the change blindness paradigm, it is necessary to examine the workings of how people can distinguish all objects in a visual field in order to detect change. Binding of an object’s identity to its corresponding location is needed for proper change detection, but this proposes a lack of understanding on a structural level: how do the involved neurons know which identity belongs to which location on the spatial map? The role of context could offer a possible explanation for this binding problem as two representations would be bound together when they are part of the same context. In this paper the effect of temporal context in specific on the change detection is examined. The amount of contextual overlap between trials is manipulated by means of presenting six objects in one trial and presenting one or two of these objects again in a succeeding trial. It is expected that more contextual overlapping will lead to an increased change detection accuracy as the object is temporarily bound to the context presented in the first and second trial. This facilitation effect is expected to only occur when the target is part of the reappearing object as the change detection performance is based on the proper detection of the target object. The mean sensitivity and location accuracy scores do not provide any support for the expected facilitation effect for the separate and combined effect of the variables of number of reappearing objects or target type. The results do show a small opposite facilitation effect on the location accuracy when the target is a newly introduced object especially when there are two reappearing objects. Further research is needed to support this finding as the current study does have significant limitations.

Item Type:	Thesis (Bachelor)
Supervisor name:	Vries, P.H. de
Degree programme:	Psychology
Differentiation route:	None [Bachelor Psychology]
Date Deposited:	02 Mar 2023 08:51
Last Modified:	02 Mar 2023 08:51
URI:	http://gmwpublic.studenttheses.ub.rug.nl/id/eprint/1758

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