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      Cortical Potentials Evoked by a TV Pattern Reversal Stimulus Varying Check Sizes and Position of the Stimulus Field

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          Abstract

          Using pattern reversal stimuli, produced by a TV system, visually evoked cortical potentials, obtained by half field and quadrant stimuli, are compared with those of full field stimulation. The lower parts of the visual field clearly give higher responses than the upper parts. Furthermore, phase differences occur. No consistent difference is found between the two hemispheres after vertical half field stimulation.

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          Author and article information

          Journal
          ORE
          Ophthalmic Res
          10.1159/issn.0030-3747
          Ophthalmic Research
          S. Karger AG
          0030-3747
          1423-0259
          1978
          1978
          03 December 2009
          : 10
          : 5-6
          : 295-301
          Affiliations
          Eye Department, Erasmus University, Eye Hospital, Rotterdam
          Article
          264971 Ophthalmic Res 1978;10:295–301
          10.1159/000264971
          a65882b7-b860-427c-8f38-2b7a11e9278b
          © 1978 S. Karger AG, Basel

          Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

          History
          : 24 July 1978
          : 18 October 1978
          Page count
          Pages: 7
          Categories
          Paper

          Vision sciences,Ophthalmology & Optometry,Pathology
          Retinal fields,Electrocorticogram,Cerebral cortex,Pattern stimulation,Visually evoked cortical potentials

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