Abstract
Interference in dual tasks and extreme motivación. While the general analysis shows linear independency between extreme motivational factors (extreme self-valuation and extreme work-valuation) and interference in dual tasks, monotonous and long duration, the zonal analysis (six grupos) in a factorial design 6 x 4 x 5 (extreme self-valuation x difficulty x practice) shows significant non-linear relation between these extreme motivational factors and interferente. The differences are focused in four working sessions. The fifth experimental session of consolidation-continuance executed fifteen days ordered according to the parameters of task and time of realization. This would suggest that Pelechano's parametric option offers a serious alternative to the study of attentional processes.