Journal
PSYCHOLOGICAL REVIEW
Volume 113, Issue 4, Pages 887-916Publisher
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/0033-295X.113.4.887
Keywords
control of routine behavior; localist versus distributed representations; simple recurrent networks; neuropsychological impairments of action
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Traditional accounts of sequential behavior assume that schemas and goals play a causal role in the control of behavior. In contrast, M. Botvinick and D. C. Plaut (2004) argued that, at least in routine behavior, schemas and goals are epiphenomenal. The authors evaluate the Botvinick and Plain account by contrasting the simple recurrent network model of Botvinick and Plant with their own more traditional hierarchically structured interactive activation model (R. P. Cooper & T. Shallice, 2000). The authors present a range of arguments and additional simulations that demonstrate theoretical and empirical difficulties for both Botvinick and Plant's model and their theoretical position. The authors conclude that explicit hierarchically organized and causally efficacious schema and goal representations are required to provide an adequate account of the flexibility of sequential behavior.
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