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ERIC Number: EJ804965
Record Type: Journal
Publication Date: 2008-Sep
Pages: 31
Abstractor: As Provided
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0010-0285
A Computational Model of Spatial Visualization Capacity
Lyon, Don R.; Gunzelmann, Glenn; Gluck, Kevin A.
Cognitive Psychology, v57 n2 p122-152 Sep 2008
Visualizing spatial material is a cornerstone of human problem solving, but human visualization capacity is sharply limited. To investigate the sources of this limit, we developed a new task to measure visualization accuracy for verbally-described spatial paths (similar to street directions), and implemented a computational process model to perform it. In this model, developed within the Adaptive Control of Thought-Rational (ACT-R) architecture, visualization capacity is limited by three mechanisms. Two of these ("associative interference" and "decay") are longstanding characteristics of ACT-R's declarative memory. A third ("spatial interference") is a new mechanism motivated by spatial proximity effects in our data. We tested the model in two experiments, one with parameter-value fitting, and a replication without further fitting. Correspondence between model and data was close in both experiments, suggesting that the model may be useful for understanding why visualizing new, complex spatial material is so difficult. (Contains 9 figures.)
Elsevier. 6277 Sea Harbor Drive, Orlando, FL 32887-4800. Tel: 877-839-7126; Tel: 407-345-4020; Fax: 407-363-1354; e-mail: usjcs@elsevier.com; Web site: http://www.elsevier.com
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A