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Standard Laterality Models

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Abstract

The last two chapters of the first part of the book on lateralization development and its causation explore further the range of the author’s models on the question. First, it considers in depth once more the concept of activation-inhibition coordination, but less from a developmental point of view and more in terms of adult research and models based on that research. It begins with some developmental research and focuses on research on inhibition. The adult research also examines the inhibitory function in the left and right hemispheres . For example, the research shows that simpler inhibitory activities are localized in the right hemisphere, which is consistent with Young’s hypothesis that the left hemisphere is specialized for more complex inhibitory skills , that is, in terms of activation-inhibition coordination. The chapter also examines the generalized role of activation-inhibition coordination, that is, independent of laterality/lateralization, in orchestrating both behavior and brain function . For example, it examines research on neuronal activity fitting an excitation-inhibition dynamic. Also, it examines research on difficulties in inhibition found in certain disorders, such as attention deficit hyperactivity disorder (ADHD). The chapter continues by exploring other models in relation to laterality, especially network ones. It then turns to my own work on networked causality and different hierarchical levels in systems, illustrating how such modeling might help in laterality conceptualization, for example, by complementing the activation-inhibition coordination model. The chapter terminates by examining more closely the biopsychosocial model and how it might relate to lateralization.

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Young, G. (2019). Standard Laterality Models. In: Causality and Development. Springer, Cham. https://doi.org/10.1007/978-3-030-02493-2_8

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