Pushing Typists Back on the Learning Curve: Revealing Chunking in Skilled Typewriting.
Theories of skilled performance propose that highly trained skills involve hierarchically structured control processes. The present study examined and demonstrated hierarchical control at several levels of processing in skilled typewriting. In the first two experiments, we scrambled the order of let...
| Publicado en: | Journal of Experimental Psychology. Human Perception & Performance Vol. 40; no. 2; pp. 592 - 613 |
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| Autores principales: | , |
| Formato: | Artículo |
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American Psychological Association
Apr2014
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=95429084&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 95429084 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00961523 EPH jtl: Journal of Experimental Psychology. Human Perception & Performance issn: 00961523 maglogo: N pubinfo: dt: Apr2014 vid: 40 iid: 2 pid: 34 pub: American Psychological Association artinfo: ui: 95429084 10.1037/a0033809 ppf: 592 ppct: 21 formats: tig: atl: Pushing Typists Back on the Learning Curve: Revealing Chunking in Skilled Typewriting. aug: au: Yamaguchi, Motonori Logan, Gordon D. affil: Vanderbilt University su: Sensory perception Learning curve Typewriting Stimulus & response (Psychology) Keyboards (Electronics) Scrambling systems (Telecommunication) sug: subj: Sensory perception Computer and peripheral equipment manufacturing Computer Terminal and Other Computer Peripheral Equipment Manufacturing Learning curve Typewriting Stimulus & response (Psychology) Keyboards (Electronics) Scrambling systems (Telecommunication) keyword: automatic processes hierarchical control motor chunk skilled performance unit of processing automatic processes hierarchical control motor chunk skilled performance unit of processing ab: Theories of skilled performance propose that highly trained skills involve hierarchically structured control processes. The present study examined and demonstrated hierarchical control at several levels of processing in skilled typewriting. In the first two experiments, we scrambled the order of letters in words to prevent skilled typists from chunking letters, and compared typing words and scrambled words. Experiment 1 manipulated stimulus quality to reveal chunking in perception, and Experiment 2 manipulated concurrent memory load to reveal chunking in short-term memory (STM). Both experiments manipulated the number of letters in words and nonwords to reveal chunking in motor planning. In the next two experiments, we degraded typing skill by altering the usual haptic feedback by using a laser-projection keyboard, so that typists had to monitor keystrokes. Neither the number of motor chunks (Experiment 3) nor the number of STM items (Experiment 4) was influenced by the manipulation. The results indicate that the utilization of hierarchical control depends on whether the input allows chunking but not on whether the output is generated automatically. We consider the role of automaticity in hierarchical control of skilled performance. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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