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Remembering and forgetting : testing the limits and structure of Visual Working Memory and whether memory decay can be observed

Husmann, Marius (2021) Remembering and forgetting : testing the limits and structure of Visual Working Memory and whether memory decay can be observed.

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Abstract:Two important aspects of Visual Working Memory are the role that time plays as well as what the units of memories are. There are two main theories about how information is stored, the first being the discrete capacity model. The second model is the limited resource model, according to which there is a limited pool of resources that are allocated to remember certain features of objects. For the role of time the most widely known theory is the decay theory, predicting that memories gradually decay over time. An experiment was conducted in which 19 participants had to remember features of up to four objects which differed in their three dimensions. First they needed to remember these three feature dimensions separately, followed by a block where they needed to attend to all dimensions. They had decay times of either one or three seconds between item memorization and recall. A repeated measures ANOVA showed that the number of presented stimuli and the number of attended dimensions had a significant effect on the recall precision, leading to a rejection of the discrete capacity model. The decay time had no significant effect on the memory precision at any point or level of the experiment.
Item Type:Essay (Bachelor)
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:77 psychology
Programme:Psychology BSc (56604)
Link to this item:http://purl.utwente.nl/essays/87534
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