Accession Number : ADA118976

Title :   Effects of Non-Preferred Hand On Control Movement Stereotypes.

Descriptive Note : Master's thesis,


Personal Author(s) : Lenz,Richard Lee

PDF Url : ADA118976

Report Date : Jan 1982

Pagination or Media Count : 74

Abstract : A laboratory study was conducted to establish the degree to which ON-OFF control movement stereotypes apply to the non-preferred hand as well as to the preferred hand and both hands acting in unison. The subjects were 120 Air Force ROTC students at Texas A&M University. Thirty of these subjects were left-handed. Twenty of the subjects performed under each of the six conditions with 5 left-handed in each group. A criterion score for stereotyped performance was set at 85 percent and Z-tests were conducted to establish significance. Data showed strong stereotypes for turning off switches, but showed no corresponding stereotypes for turning on switches. Left-right toggles showed no stereotype for either hand. Use of the non-preferred hand showed consistently lower percentages in the expected direction but the differences were not statistically significant. When both hands were used together, opposing movements predominated for left-right and rotary switches. Horizontally mounted toggle switches were pulled rearward for both on and off under all conditions.

Descriptors :   *Motor reactions, *Hands, *Performance(Human), *Man machine systems, Behavior, Selection, Orientation(Direction), Rotary switches, Toggle switches, Control, Actuation, Stopping, Skills, Test methods, Human factors engineering, Theses

Subject Categories : Psychology
      Anatomy and Physiology
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE