Displays that facilitate performance of multifrequency ratios during motor-respiratory coordination

Eric E. Hessler, Laura M. Gonzales, Polemnia Amazeen

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


A large number of ratios between movement and breathing are possible, but only a small number have been performed during exercise. The purpose of this study was twofold: (1) to investigate displays that might facilitate the performance of other ratios; and (2) to test predictions from the sine circle map and continued fractions in a model motor-respiratory task in which participants coordinated arm movement and breathing. Displays consisted of either real-time feedback or a template (non-feedback). The accuracy of ratio performance was significantly greater with the template in which the number and relative positioning of movements and breaths was depicted, compared to with real-time feedback. Across displays, the stability of ratio performance conformed to principles of the sine circle map and was significantly greater for ratios with longer continued fractions. Therefore, the motor-respiratory repertoire can be expanded by increasing participants' understanding of the pattern to be performed, but performance is constrained by general dynamical principles.

Original languageEnglish (US)
Pages (from-to)96-105
Number of pages10
JournalActa psychologica
Issue number1
StatePublished - Jan 2010


  • Farey
  • Feedback display
  • Fibonacci
  • Motor-respiratory coordination
  • Perception-performance compatibility

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Developmental and Educational Psychology
  • Arts and Humanities (miscellaneous)


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