User:Giantsjs2000/Micropsia

Micropsia Proposal

Chuck Cahalane, Christina Farnham, Jim Semple

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Important Information

Micropsia is a neurological condition that affects human visual perception, causing images to become distorted so that objects are perceived to be smaller than they actually are. We will investigate the multiple causes that can lead to the condition of micropsia, including head trauma, swelling of the cornea (often linked to the Epstein-Barr virus), and neurological dysfunction. Also, as a group, we will look to better describe the link between micropsia and migraines. We will show the relation of micropsia to other conditions and diseases, such as the opposite condition macropsia, Alice in Wonderland Syndrome, and the Epstein-Barr virus. We will describe hemimicropsia, a form of micropsia that is localized to one hemisphere of the brain and utilize the studies of patients affected with hemimicropsia which indicate how the condition can also be caused by brain lesions.

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Points To Be Covered

Introduction

Overview

Symptoms

Diagnosis

Causes

Treatment

Current/Future Research

Conclusion

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Tentative Sources

Primary Sources:

1. Selective deficit of visual size perception: two cases of hemimicropsia. Laurent Cohen, Francoise Gray, Christian Meyrignac, Stanislas Dehaene, Jean-Denis Degos Journal of Neurology, Neurosurgery, and Psychiatry 1994;57:73-78 http://jnnp.bmj.com/cgi/content/abstract/57/1/73?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=&fulltext=micropsia&searchid=1&FIRSTINDEX=0&sortspec=relevance&resourcetype=HWCIT

2. Brain imaging in a patient with hemimicropsia. J. Kassubek, M. Otte, T. Wolter, M. W. Greenlee, T. Mergner and C. H. Lücking Neurologische UniversitaÈtsklinik, UniversitaÈt Freiburg, Freiburg, Germany http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T0D-3XH367D-1&_user=521319&_coverDate=11%2F30%2F1999&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000026018&_version=1&_urlVersion=0&_userid=521319&md5=47d4d3bc75dd4406c8ded82bb67b34df

3. The relation between convergence micropsia and retinal eccentricity. Mark Hollins and Kenneth W. Bunn Department of Psychology, University of North Carolina, Chapel Hill, NC 27514, U.S.A. http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T0W-4846627-54&_user=521319&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000026018&_version=1&_urlVersion=0&_userid=521319&md5=ed8e9b57c4ebbc0668f8da5a1f4ec06c

4. Seeing Objects Smaller Than They are: Micropsia Following Right Temporo-Parietal Infarction. Fiorenzo Ceriani, Valentina Gentileschi, Silvia Muggia and Hans Spinnler Third Neurological Department of the University of Milan http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B8JH1-4S0JBR7-9&_user=521319&_coverDate=12%2F31%2F1998&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000026018&_version=1&_urlVersion=0&_userid=521319&md5=ac3535cc49355e0e21220619cd0e1716

5. Diagnoses made in a secondary care ‘‘fits, faints, and funny turns’’ clinic. D Hindley, A Ali, and C Robson. Arch Dis Child. 2006 March; 91(3): 214–218. http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=2065949&blobtype=pdf

Secondary Sources:

1. What is Micropsia? http://www.wisegeek.com/what-is-micropsia.htm

2. A Word a Day: Micropsia http://wordsmith.org/words/micropsia.html

3. Medical Dictionary: Micropsia http://medical-dictionary.thefreedictionary.com/micropsia

4. Web-Md: Migraines in Children http://www.webmd.com/migraines-headaches/migraines-in-children?page=3

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Allotment of Workload

Chuck Cahalane:

Introduction

Overview

Diagnosis

Christina Farnham:

Symptoms

Causes

Jim Semple:

Treatment

Current/Future Research

Conclusion