Brain weight and performance on a spatial-location test were measured from birth to weaning on mouse strains CDl, Balb/c, and their F1 cross. For CD1, onsets of both the last rapid-brain-growth stage and nonzero scores on the spatial-location test were around age 17 days; asymptotes of both were reached about age 23 days. Balb/c and F1 had at least 5-to 6-day delays of both onsets and asymptotes. For the strains studied, onset of nonzero performance on the spatial-location test may be a provisional indicator of onset of significant and rapid brain growth after age 15 days. The delayed Fl brain growth stage could indicate that control of brain growth about age 20 days resides in an inhibitory factor present in Balb/c but not in CDl.

This content is only available via PDF.
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.