Matthysse S
Mailman Research Center, McLean Hospital Belmont, MA 02178.
Neurochem Res. 1991 Mar;16(3):397-408. doi: 10.1007/BF00966103.
Selection models of behavior presuppose "selectable variation", diversity in the brain that is stable over time. Diversity can arise spontaneously through the mutual interactions of cell assemblies, which are postulated to align or disalign their neighbors into processing modes conforming to or opposite from their own. These processes are similar to magnetization and crystallization. If aligning and disaligning influences are distributed at random, a state resembling a spin glass can arise, where processing modes are highly varied in space but stable in time. If disalignment occurs regularly at the points of a two-dimensional lattice, and elsewhere the interactions are aligning, a pattern emerges with properties remarkably similar to visual orientation columns. These patterns are maintained dynamically, and emerge statistically without detailed genetic specification.
行为选择模型预先假定了“可选择的变异”，即大脑中随时间稳定的多样性。多样性可通过细胞集合体的相互作用自发产生，据推测，这些细胞集合体会使其相邻细胞集合体排列或反排列成与自身一致或相反的处理模式。这些过程类似于磁化和结晶。如果排列和反排列影响是随机分布的，就可能出现一种类似于自旋玻璃的状态，其中处理模式在空间上高度变化但在时间上稳定。如果在二维晶格点上规则地发生反排列，而在其他地方相互作用是排列的，就会出现一种模式，其特性与视觉定向柱非常相似。这些模式是动态维持的，并且在没有详细基因规范的情况下通过统计出现。
