Shape parameters explain data from spatial transformations: comment on Pearce et al. (2004) and Tommasi & Polli (2004).

摘要: In 2 recent studies on rats (J. M. Pearce, A. Good, P. Jones, & McGregor, see record 2004-12429-006) and chicks (L. Tommasi C. Polli, 2004-15642-007), the animals were trained to search in 1 corner of a rectilinear space. When tested transformed spaces different shapes, still showed systematic choices. Both articles rejected global matching shape favor local processes. The present authors show that although by congruence is unlikely, parameter 1st principal axis can explain all data. Other parameters, such as symmetry axes, may do even better. Animals are likely use some constrain guide cues; keeps processes from exploding complexity.