User:Hassan.zayn/Macropsia Proposal

Macropsia

Once you have chosen your topic, write up a one page proposal, outlining important information about it, what points you will cover in your article, a short list of resources, and how you will divide up the workload General Background Information

Macropsia is a neurological condition that has adverse effects on affected humans' sight. Instead of seeing things as they commonly appear, macropsia causes objects to appear larger than normal, which in turn, has the effect of making the person seem smaller. Macropsia can be caused through other neurological conditions or diseases, or through the use of psychoactive drugs.

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Important Info to be discussed in article

Our plan is to discuss the two major aspects of macropsia: Causes and symptoms.

There are many ways through which macropsia results; some of these causes are other neurological and opthalmic conditions, while other causes are psychoactive drugs. Some examples of the neurological conditions are brian tumors, frontal lobe epilepsy, and Alice in Wonderland Syndrome (AIWS), also called Todd's Syndrome. AIWS is a condition affecting a range of visual perceptions, and is often associated in some way with the other neurological conditions mentioned above. AIWS can be a symptom of Epstein-Barr Virus (EBV), therefore there it is logical that macropsia is indirectly related to EBV.

Causes: Drugs (marijuana, psilocybin mushrooms, other psychoactive drugs), brain tumors, retinal disease, migraines, frontal lobe epilepsy, one effect of AIWS/Todd's Syndrome

Symptoms: Objects appear larger than normal, making the subject feel smaller than normal

"Diagnosis": The extent of macropsia can be measured by the New Aniseikonia Test (NAT). Threshold dysmetropsia can be measured using a bracketing process by determining when a subject determines that varying pairs of circles of different sizes are the same.

Tentative Sources

1. Ugarte M. Horizontal and vertical micropsia following macula-off rhegmatogenous retinal-detachment surgical repair. "Grafes Archive for Clinical and Experimental Ophthalmology" 244 (11): 1545-1548 NOV 2006.

2. SCHNECK JM. Macropsia and micropsia. "AMERICAN JOURNAL OF PSYCHIATRY" 122 (3): 350-350 1965.

3. Abe, . Macropsia, micropsia, and episodic illusions in Japanese adolescents. "JOURNAL OF THE AMERICAN ACADEMY OF CHILD AND ADOLESCENT PSYCHIATRY" 28 (4): 493-496 JUL 1989

4. Ghanizadeh A. Citalopram-induced macropsia. "CLINICAL NEUROPHARMACOLOGY" 30 (4): 246-247 JUL-AUG 2007.

5. Wright J, and Boger W. Visual Complaints From Healthy Children. Survey of Ophthalmology 44 (2) 113-121 1999.

Allotment of Workload

Work will be split up evenly, but it has not yet been decided how the work will be split up.