Electrophysiological Correlates of Vernier Acuity in Human Visual Cortex.

Abstract

A three part evoked potential (EP) study was undertaken in an attempt to better understand the neural mechanisms underlying vernier acuity. Results indicated: (a) VEPs evoked by vernier offset stimuli could be used to estimate psychophysical threshold, (b) VEP amplitude was affected by interference lines in the same way as psychophysical sensitivity (c) origin of the VEPs (and the associated neural mechanism) may be outside of striate cortex.

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Document Details

Document Type
Technical Report
Publication Date
Apr 28, 1984
Accession Number
ADA146533

Entities

People

  • R. Zak

Tags

Communities of Interest

  • Human Systems
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accuracy
  • Contractors
  • Data Analysis
  • Department Of Defense
  • Detection
  • Electrophysiological Phenomena
  • Frequency
  • Information Processing
  • Least Squares Method
  • Luminance
  • Orientation (Direction)
  • Psychology
  • Square Waves
  • Standards
  • Visual Cortex
  • Waveform Generators
  • Waveforms

Fields of Study

  • Psychology

Readers

  • Neuroscience
  • Vision Science/Vision Psychology/Cognitive Neuroscience.