Explorations of Anatomy of Connectionist Models for Visual Lexical Access

Abstract

During this 18 month short term initiative grant we have developed a new state of the art ERP laboratory based on Macintosh computers and labview software that can record up to 64 channels of EEG input. In this report we describe this system, its potential and include a manual for its operation. In addition, we have completed two experiments that show a distinction between words and consonant strings that is maximal for occipital lobe electrodes and that occurs within the first 250 millisec after input. In addition, words also differ from consonant strings in the lateral distribution of electrical activity over posterior temporal leads within the first 200 millisec following input. These two results conform to findings using PET suggesting an area sensitive to orthographic regularity in the left ventral occipital lobe (Snyder et al, 1989). Keywords: Attention, Event related potentials, Parallel distribution processes, Work recognition.

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Document Details

Document Type
Technical Report
Publication Date
Jun 14, 1990
Accession Number
ADA224845

Entities

People

  • Don M. Tucker
  • Michael Posner

Organizations

  • University of Oregon

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Acquisition
  • Alphabets
  • Brain
  • Cognition
  • Cognitive Neuroscience
  • Cognitive Science
  • Computer Programs
  • Computers
  • Consonants
  • Current Density
  • Data Analysis
  • Detection
  • Operating Systems
  • Psychology
  • Recognition
  • Statistical Analysis
  • Word Recognition

Readers

  • Cardiovascular Physiology
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Speech Processing/Speech Recognition.