Planning, encoding, and overcoming conflict in partial occlusion drawing: a neo-Piagetian model and an experimental analysis

Article Abstract:

The group-encoding of similar objects leads to a drawing problem which can be solved only through planning. Two experiments and a theoretical model of partial occlusion support the planning hypothesis. An experiment to test the involvement of planning or scanning in partial occlusion drawing gives results that are consistent with the planning hypothesis. Another experiment that uses verbal descriptions to assess encoding shows that planning is used to solve the problem created by the group-encoding of similar objects. A neo-Piagetian model that accounts for drawing performance is given.

Analysis, Perceptual-motor processes, Children's drawings, Planning in children

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A new model of verbal short-term memory

Article Abstract:

A neo-Piagetian model of verbal short-term memory was tested and compared with the articulatory loop model, using measures of M capacity and articulation rate. The model could account for the effects of M capacity, presentation modality and word length, and its parameter estimates were consistent throughout experiments. The correlation between M capacity and word span resisted partialling out of age and articulation rate.

Constructivism (Education), Constructivism (Learning theory)

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Impaired verbal short-term memory in Down syndrome reflects a capacity limitation rather than atypically rapid forgetting

Article Abstract:

A study explored the effects of manipulations of presentation rate in verbal and visuospatial short-term memory paradigms among individuals with Down syndrome and typically developing controls. The results indicated that individuals with Down syndrome do not show atypically rapid item forgetting from phonological memory though many have a limited-capacity verbal short-term memory system.

United Kingdom, Psychological aspects, Causes of, Risk factors, Down syndrome, Persons

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