The eye fixations of 20 young adults and 20 children, aged six, were recorded while they were recognizing or inspecting a series of displays. The test photographs presented three levels of definition for one particular scene: very blurred, blurred, or sharp. Each picture was presented for two 10-second trials. Either the very blurred or the sharp picture was given first to a particular S. The eye tracks were therefore recorded either during attempts at visual comprehension or during casual inspection. The position and sequence of the fixations of each S were recorded individually on a Polaroid copy of the original display. Eight different analysis procedures were used to study the eye tracks and all showed reliable differences between adults and children. With the sharp pictures, children lacked adequate coverage of the display; their eye tracks averaged only two-thirds the length of the adult tracks, mostly because children had twice as many very small eve movements. Adults were more skillful at visually selecting the informative areas within out-of-focus pictures; this skill calls for a delicate balance between central and peripheral vision. Children were less consistent than adults in regard to the areas they visually selected from the out-of-focus displays. Only adults attempted to relate important areas of such displays by long leaping movements of the eyes. The direction of these long movements altered when S already knew the nature of the display. Adult fixation times increased by 40 % when .Ss had to comprehend the out-of-focus displays rather than merely inspect them. In the second part of the paper, theoretical interpretations are provided.

This content is only available via PDF.
© 1970 S. Karger AG, Basel
1970
Copyright / Drug Dosage / Disclaimer
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.
You do not currently have access to this content.