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      • Record: found
      • Abstract: found
      • Article: found

      Changes in Colour Discrimination during the Menstrual Cycle

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          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          A group of normal women of reproductive age were recruited to investigate colour discrimination during the various phases of the menstrual cycle. Colour vision was tested with the Farnsworth-Munsell 100-hue arrangement test, and the test was administered at 3 time points: the beginning of the cycle, ovulation, and the end of the cycle. We found that colour discrimination was better at ovulation than at the other 2 time points. It is possible that psychological as well as hormonal factors could contribute to improved colour vision performance at ovulation.

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          Estrogen is more than just a "sex hormone": novel sites for estrogen action in the hippocampus and cerebral cortex.

          P Shughrue, I Merchenthaler (1999)
          For decades estrogen was thought of only as a "sex hormone," as it plays a fundamental role in regulating behavioral and physiological events essential for successful procreation. In recent years, estrogen has been shown to exert effects on the structure and function of the hippocampus and cortex. The discovery of a new estrogen receptor (ER-beta) and localization of ER-alpha and ER-beta mRNAs in the pyramidal cells of the rat hippocampus and ER-beta mRNA in rat cortex have provided new insight into how estrogen may directly modulate the structure and function of these neurons. Moreover, recent in vivo (125)I-estrogen binding studies have shown that nuclear estrogen binding sites are widely distributed in the pyramidal cells throughout CA1-3 of the hippocampus and laminae II-VI of the isocortex, demonstrating that ER mRNAs are translated into biologically active protein. The functional impact of estrogen receptor localization in the cortex and hippocampus may prove relevant to the emerging role for estrogen as a protective factor in neurodegenerative injury. This potential role is further highlighted by the recent findings that the expression of ER-alpha and ER-beta changes following ischemic brain injury and that these changes correlate with the hormonal modulation of protective factors. These data provide the first evidence that the expression of ERs in the adult cortex is not static, but instead, responsive to neuronal injury and perhaps additional factors that influence the cortical environment and status of these neurons. Together, these data indicate that estrogen has a far greater effect on the hippocampus and isocortex than previously thought. Furthermore, these new findings challenge our current thinking about steroid hormones and their mechanism(s) of action in regions associated with learning and memory and affected by the neurodegenerative conditions of aging. Copyright 2000 Academic Press.
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            Color vision

            W. Swanson, J. Cohen (2003)
            Article 0 comments Cited 14 times – based on 0 reviews     Review now
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              Visual sensitivity and sexual arousal levels during the menstrual cycle.

              M. Diamond, A Diamond, M Mast (1972)
              Article 0 comments Cited 13 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (publisher-id): OPH
                Journal ID (nlm-ta): Ophthalmologica
                Journal ID (doi): 10.1159/issn.0030-3755
                Title: Ophthalmologica
                Publisher: S. Karger AG
                ISSN (Print): 0030-3755
                ISSN (Electronic): 1423-0267
                Publication date Subscription-year: 2007
                Publication date (Print): December 2006
                Publication date (Electronic): 18 December 2006
                Volume: 221
                Issue: 1
                Pages: 47-50
                Affiliations
                aDepartment of Neurology, Ophthalmology and Psychiatry, University Eye Clinic, and bDepartment of Obstetrics and Gynaecology, University of Palermo, Palermo, Italy
                Article
                Publisher ID: 96522 Other ID: Ophthalmologica 2007;221:47–50
                DOI: 10.1159/000096522
                PubMed ID: 17183201
                SO-VID: 1eb85c36-1789-4dd5-b861-8339ea6bc724
                Copyright © © 2007 S. Karger AG, Basel
                License:

                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
                Date received : 16 December 2005
                Date accepted : 17 August 2006
                Page count
                Tables: 3, References: 13, Pages: 4
                Categories
                Subject: Original Paper

                ScienceOpen disciplines: Vision sciences,Ophthalmology & Optometry,Pathology
                Keywords: Colour vision,Ovulation,Menstrual cycle,Farnsworth-Munsell 100-hue test
                Data availability:
                ScienceOpen disciplines: Vision sciences, Ophthalmology & Optometry, Pathology
                Keywords: Colour vision, Ovulation, Menstrual cycle, Farnsworth-Munsell 100-hue test

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