Wednesday, March 14, 2007

Hirarchical cognition




“Hierarchical control of cognitive processes was studied by examining the relationship between sequence- and task-level processing in the performance of explicit, memorized task sequences … Hierarchical control was inferred from these sequence initiation time effects and the recurrent finding of no switch cost at the first serial position across sequences, the point at which sequence-level processes are likely active in maintaining or instantiating a hierarchical control structure in working memory.” Schneider, D. W. and Logan, G. D. ‘Hierarchical Control of Cognitive Processes: Switching Tasks in Sequences Hierarchical Control of Cognitive Processes: Switching Tasks in Sequences’. Journal of Experimental Psychology: General. 2006 Nov Vol 135(4) 623-640