The visual organization

23 student nurses were administered the Hooper Visual Organization Test in order to determine the number falsely identified as braindamaged. Not only were there no false positives in this sample, but also the scores were consistently higher than those reported in the Hooper VOT manual for normal Ss.

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The electrical phosphene threshold as a measure of retinal induction and visual organization.

Journal of Experimental Psychology ◽

10.1037/h0049264 ◽

1957 ◽

Vol 54 (1) ◽

pp. 21-27 ◽

Cited By ~ 6

Author(s):

Richard M. Michaels

Keyword(s):

Phosphene Threshold ◽

Visual Organization

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Validity and Reliability of the Hooper Visual Organization Test

Perceptual and Motor Skills ◽

10.2466/pms.1974.39.1.95 ◽

1974 ◽

Vol 39 (1) ◽

pp. 95-100 ◽

Cited By ~ 13

Author(s):

Allan Gerson

Keyword(s):

False Positive Rate ◽

False Negative ◽

False Negative Rate ◽

Functional Disorders ◽

Validity And Reliability ◽

Clinical Value ◽

Clear Cut ◽

Positive Rate ◽

Organic Brain ◽

Visual Organization

To assess the validity and reliability of the Hooper Visual Organization Test, 68 Ss, of whom 16 were clinically and psychometrically determined to be suffering from organic brain damage, 19 had functional disorders, and 33 were without organic or functional disorders (normal), were given the test. The instrument was shown to be reliable ( r = .80), however, clear-cut discriminations between groups were not achieved. There were significant differences in scores of normal and damaged groups, functional and damaged Ss, but not functional and normal Ss. The qualitative signs said to aid in differentiations were totally absent from all protocols. Performance was affected in part by IQ and other aspects of recognition of meaning. There was a 19% false negative rate for the functionals and a 51% false positive rate for normals. The conclusion was that this device is of dubious clinical value.

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Functional MRI neuroanatomic correlates of the Hooper Visual Organization Test

Journal of the International Neuropsychological Society ◽

10.1017/s1355617704107042 ◽

2004 ◽

Vol 10 (7) ◽

pp. 939-947 ◽

Cited By ~ 16

Author(s):

CHAD H. MORITZ ◽

STERLING C. JOHNSON ◽

KATHRYN M. MCMILLAN ◽

VICTOR M. HAUGHTON ◽

M. ELIZABETH MEYERAND

Keyword(s):

Right Hemisphere ◽

Parietal Lobe ◽

Neuropsychological Test ◽

Occipital Cortex ◽

Normal Subjects ◽

Object Identification ◽

Visual Spatial ◽

Dorsolateral Prefrontal ◽

Fmri Analysis ◽

Visual Organization

The Hooper Visual Organization Test (VOT), a commonly applied neuropsychological test of visual spatial ability, is used for assessing patients with suspected right hemisphere, or parietal lobe involvement. A controversy has developed over whether the inferences of this test metric can be assumed to involve global, lateralized, or regional functionality. In this study, the characteristic visual organization and object naming aspects of the VOT task presentation were adapted to a functional MR imaging (fMRI) paradigm to probe the neuroanatomic correlates of this neuropsychological test. Whole brain fMRI mapping results are reported on a cohort of normal subjects. Bilateral fMRI responses were found predominantly in the posterior brain, in regions of superior parietal lobules, ventral temporal-occipital cortex, and posterior visual association areas, and to a lesser extent, the frontal eye fields bilaterally, and left dorsolateral prefrontal cortex. The results indicate a general brain region or network in which VOT impairment, due to its visuospatial and object identification demands, is possible to be detected. Discussion is made of interpretive limitations when adapting neuropsychological tests to fMRI analysis. (JINS, 2004, 10, 939–947.)

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