Method for measuring visual function and visual attention in a continuous performance test
First Claim
1. A method for administering a test regime to simultaneously measure visual function and visual attention, comprising:
- a. applying stimuli believed to preferentially elicit specific visual pathways to a subject,b. measuring the subject'"'"'s responses to said stimuli, andc. analyzing said responses by computer program means to measure visual function and visual attention.
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Abstract
The invention comprises a neuropsychological test method designed to measure a test subject'"'"'s variables of visual attention for stimuli believed to preferentially elicit specific visual pathways. Target visual pathways include the magnocellular on/off, parvocellular chromatic red/green, koniocellular blue/yellow, and parvocellular achromatic pathways. Furthermore, the invention computes differential measures between the different stimuli types for diagnostic value. These computations include, but are not limited to, measures believed to elicit non-linear contrast gain control, on versus off pathways, and changes in performance over time. The test displays both target and noise (non-target) stimuli with different apriori probabilities at different stages of the test. The test can capture and analyze physiological measures, isoluminant points and critical flicker fusion points. In accordance with the present invention, a novel method and system called the “Variable Contrast Continuous Performance Test (VC-CPT)” is provided.
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7 Claims
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1. A method for administering a test regime to simultaneously measure visual function and visual attention, comprising:
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a. applying stimuli believed to preferentially elicit specific visual pathways to a subject, b. measuring the subject'"'"'s responses to said stimuli, and c. analyzing said responses by computer program means to measure visual function and visual attention. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification