Signal Analysis of Visual Evoked Responses.

Abstract

This study was undertaken in support of the USAF School of Aerospace Medicine's (USAFSAM) goal of assessing the effect of visual stimuli upon the flier. The main objective was to reduce the variability (variance, or coefficient of variation) of estimates of visual evoked responses. For this purpose, USAFSAM had previously collected data from Macaca mulatta. These data have been used in this report, together with new data collected from human volunteers by the authors. The method of approach, based on modern statistical analysis, lead to the development of software which was subsequently installed on DEC 11/34 computers at the USAFSAM Laser Effects Branch. An up to sixteen-fold reduction in variance (stimulus present) and a more than three-fold reduction in variance (stimulus absent), compared to results of earlier classic fast-Fourier-transform methods, can be ascribed to a particular hierarchical matched filter and a maximum likelihood estimation technique. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1983
Accession Number
ADA146879

Entities

People

  • Katharine C Hsu
  • W. Jarisch

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Aerospace Medicine
  • Air Force
  • Computers
  • Data Acquisition
  • Data Analysis
  • Data Processing
  • Data Science
  • Databases
  • Filters
  • Information Processing
  • Information Science
  • Matched Filters
  • Maximum Likelihood Estimation
  • Regression Analysis
  • Rods
  • Statistical Analysis
  • Statistics

Readers

  • Approximation Theory.
  • Aviation Science / Aeronautics.
  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience

Technology Areas

  • Directed Energy
  • Space