Accession Number : ADA112636

Title :   Central Control of Timing in Skilled Typing.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV SAN DIEGO LA JOLLA CENTER FOR HUMAN INFORMATION PROCESSING

Personal Author(s) : Grudin,Jonathan T

PDF Url : ADA112636

Report Date : Feb 1982

Pagination or Media Count : 31

Abstract : The timing of keystrokes during errors in skilled transcription typing suggests central control of timing for two-letter sequences. I find that letter transpositions are performance errors, and the timing of interstroke intervals in these errors is closely correlated with the pattern found in the same words typed correctly. This and other aspects of the timing argue against both a distributed processing model with single-character units and a pure metronome model. For these two-character sequences, timing seems to be controlled by signals issued generally, rather than to a specific finger. (Author)

Descriptors :   *Performance(Human), *Motor reactions, *Reaction time, Skills, Control, Fingers, Time intervals, Typewriters, Keyboards, Sequences, Errors, Words(Language), Test methods, Models

Subject Categories : Psychology
      Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE