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PubMed1965

OGUCHI'S DISEASE.

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Acclimatization↗
PubMedDate not supplied

Color vision testing.

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Color Perception Tests↗
PubMed1981

Evaluation of the transilluminated Amsler grid for macula testing in cataract patients.

A transilluminated, modified Amsler grid was used for evaluation of the macula in 80 cataract patients of whom 19 had abnormal maculas. The results were compared to those obtained with a commonly used test: colour perception. As control of the tests the post-operative visual acuity and ophthalmoscopic macula inspection was used. Of the diseased maculas 68% were identified by the Amsler grid test and only 32% by the colour perception test. Both tests identified a high proportion of normal maculas: 90% by Amsler grid test and 89% by colour perception test. A pathological response to the Amsler grid test indicated a 68% probability of macular disease, and a normal test result indicated a 90% probability of normal macula. Only the Amsler grid test however is not applicable to all cataract patients: Of originally 110 patients taken in for this test, 30 patients (27%) could not see the grid at all, whereas all 110 patients could be tested with the colour perception test.

Cataract↗
PubMed1993

Nicotine abstinence produces content-specific Stroop interference.

Adult, male smokers were randomly assigned to be nicotine abstinent for 12 h (n = 10) or to smoke normally for the same period of time (n = 10). Performance on a modified version of the Stroop (1935) color-naming task, where subjects named the color of ink in which each of a series of words was written, showed that abstinent smokers took significantly longer to color-name words related to cigarette smoking (e.g., Lighter) than to color-name neutral control words (e.g., Pennant). Non-abstinent smokers showed a significant difference in the opposite direction. These results suggest that nicotine abstinence decreases the ability to ignore the meaning of smoking-related information. This finding supports the hypothesis that abstinence produces a content-specific shift in attentional focus. The present pattern of results cannot be explained by a general decrease in cognitive function due to nicotine abstinence.

Adult↗