Chapter 4: Influence of Typing Skill on Pause–Execution Cycles in Written Composition

Abstract

It is well known that the cognitive cost of programming motor movements in writing can be considerably high if execution is not automatized.However, it is not clear how this cost might affect the on-line production of a written text, namely the distribution of pauses vs. execution periods.Narratives were collected using ScriptLog.Keystroke interval within a word was measured and used to distinguish between fast typistsfor whom execution was presumably automatic, and slow typists -for whom execution required attention.The relative distribution of pauses vs. execution periods between two consecutive pauses was examined.Results showed that the time ratio between pauses and execution differs between groups.Relative to fast typists, slow typists make more pauses, and have shorter execution periods.These results are discussed in light of two phenomena: the trade-off between execution and formulation processes, and the adoption of serial vs. parallel ways of composing.

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