BACKGROUND AND PURPOSE When learning multi-element movement sequences, participants organize individual elements into subsequences. Imposing this type of structure on the elements leads to the efficient production of sequences because the processing of all but the first elements in a subsequence can be completed prior to their execution. The primary purpose… (More)
Two experiments were designed to determine participants' ability to transfer a learned movement sequence to new spatial locations. A 16-element dynamic arm movement sequence was used in both experiments. The task required participants to move a horizontal lever to sequentially projected targets. Experiment 1 included two groups. One group practised a… (More)
We study the following functional equation that has arisen in the context of mechanical systems invariant under the Poincaré algebra: n+1 i=1 ∂ ∂xi j =i f (xi − xj) = 0, n ≥ 2. New techniques are developed and the general solution within a certain class of functions is given. New solutions are found.