Autocorrelation and Cross-Correlation Analyses of Alpha Waves in Reflection to Subjective Preference of a Flickering Light

Abstract

To clarify the relationship between the human brain activity and subjective preference of a flickering light under changing temporal frequency and mean luminance, alpha waves were analyzed by autocorrelation function (ACF) and cross correlation function (CCF). Paired-comparison tests were performed to examine the subjective preference of a flickering light. Electroencephalograms (EEGs) were recorded from 7 electrodes (10-20 system) during presentations of the most preferred and the least preferred flickering-light conditions. From the initial delay range of the ACF, the effective duration was determined to describe the temporal characteristics of the alpha waves. Results show that the preferred flickering light has a significant larger tau(sub e) than that of the least preferred flickering light especially at the occipital area.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 25, 2001
Accession Number
ADA412194

Entities

People

  • S. Uetani
  • Y. Ando
  • Y. Soeta

Organizations

  • Kobe University

Tags

DTIC Thesaurus Topics

  • Alcoholic Beverages
  • Autocorrelation
  • Bandpass Filters
  • Brain Waves
  • Correlation Analysis
  • Cross Correlation
  • Data Science
  • Electrodes
  • Electrophysiological Phenomena
  • Frequency
  • Hemispheres
  • Information Science
  • Intervals
  • Low Pass Filters
  • Luminance
  • Mental Processes
  • Waves

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.