Cortical sensory maps in mammalian brain exhibit various kinds of asymmetry and lateralization, the causes and mechanisms of which are not well understood and are a subject of controversy. This study uses a neural network model of left and right cortical regions connected via a corpus callosum to examine possible factors involved an the development of map lateralization and asymmetries. Competitive distribution of activation and competitive learning rules are used. The effects of varying callosal connection strength (both excitatory and inhibitory) in the symmetric case and in the presence of some model asymmetries are studied along with the effects of varying training input overlap. The results may provide some insight into how underlying cortical asymmetries and callosal influences can interact to cause hemispheric map asymmetries.
Zhipeng Cao, Jonatan Ottino‐González, Renata B. Cupertino, Nathan Schwab, Colin Hoke, Orr Catherine, Janna Cousijn, Alain Dagher, John J. Foxe, Anna E. Goudriaan, Robert Hester, Kent E. Hutchison, Chiang‐Shan R. Li, Edythe D. London, Valentina Lorenzetti, Maartje Luijten, Rocio Martín‐Santos, Reza Momenan, Martin P. Paulus, Lianne Schmaal, Rajita Sinha, Zsuzsika Sjoerds, Nadia Solowij, Dan Joseph Stein, Elliot A. Stein, Anne Uhlmann, Ruth J. van Holst, Dick J. Veltman, Reínout W. Wiers, Murat Yücel, Sheng Zhang, Neda Jahanshad, Paul M. Thompson, Patricia Conrod, Scott Mackey, Hugh Garavan
Florian Kurth, Dick Schijven, Odile A. van den Heuvel, Martine Hoogman, D. van Rooij, Dan Joseph Stein, Jan K. Buitelaar, Sven Bölte, Guillaume Auzias, Azadeh Kushki, Ganesan Venkatasubramanian, Katya Rubia, Steffen Bollmann, Johan Isaksson, Fern Jaspers‐Fayer, Rachel Marsh, Marcelo C. Batistuzzo, Paul Arnold, Rodrigo A. Bressan, S. Evelyn Stewart, Patricia Gruner, Lauge Sørensen,
Saroj Sah, Andrew D. Sauerbeck, Jyoti Gupta, Dayana Pérez-Acuña, Jacob E. Reiber, Vijay Singh, Drèson L. Russell, Thomas Goralski, Michael X. Henderson, Laura A. Volpicelli‐Daley, Michael J. Higley, Terrance T. Kummer, Thomas Biederer
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