Perception of Symmetrically Distributed Weight on the Head

Abstract

Thirty-eight enlisted men, 18 ordnance and 20 infantrymen, judged whether experimentally weighted helmets were heavier, lighter or the same weight as the reference M1 helmet. The findings indicate a lower difference threshold of 2.0 pounds and an upper difference threshold of 3.85 pounds for the combined groups. The ordnance group's lower difference threshold was 2.25 pounds, while the Infantry group's lower threshold was 1.8 pounds. The upper threshold for the ordnance group was calculated to be 3.9 pounds, while the infantry group's upper threshold was 3.8 pounds. The differences were statistically significant. It was concluded that complaints about the present helmet being 'too heavy' are not based on particularly accurate perception of weight on the head and that infantrymen are not as accurate in their judgments of weight on the head as the soldier with less field experience with the M1 helmet.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1972
Accession Number
AD0748412

Entities

People

  • Bernard M. Corona
  • Hayden A. Scheetz
  • Paul H. Ellis
  • R. B. Randall
  • R. D. Jones

Organizations

  • Human Engineering Laboratory

Tags

DTIC Thesaurus Topics

  • Army
  • Biomedical Engineering
  • Central Nervous System
  • Engineering
  • Goodness Of Fit Tests
  • Human Factors Engineering
  • Human Systems Integration
  • Infantry
  • Instructions
  • Life Support Systems
  • Munitions
  • Nervous System
  • Perception
  • Pilot Studies
  • Psychomotor Performance
  • Systems Engineering
  • Test And Evaluation

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Materials Science
  • Statistical inference.