METHOD AND SYSTEM FOR QUANTITATIVE ASSESSMENT OF WORD RECOGNITION SENSITIVITY
A method is presented to address quantitative assessment of word recognition sensitivity of a subject, where the method comprises the steps of: ( 1 ) presenting at least one scene, comprising a plurality of letters and a background, to a subject on a display; ( 2 ) moving the plurality of letters relative to the scene; ( 3 ) receiving feedback from the subject via at least one; ( 4 ) quantitatively refining the received feedback; ( 5 ) modulating the saliency of the plurality of letters relative to accuracy of the quantitatively refined feedback; ( 6 ) calculating a critical threshold parameter; and ( 7 ) recording a critical threshold parameter onto a tangible computer readable medium. An apparatus for quantitative assessment of word recognition sensitivity of a subject comprising a display device, an input device, a control device, and a tangible computer readable medium. In its simplest sense, a quantitative assessment profile of word recognition sensitivity by psychophysical responses is generated on a tangible computer readable medium.
1 . A method for assessment of word recognition sensitivity of a subject, said method comprising the steps of:
presenting at least one scene to said subject on a display, said scene comprising a plurality of letters and a background;
moving said plurality of letters relative to said scene, said movement being tracked by said subject;
receiving feedback from said subject via at least one input device;
quantitatively refining said received feedback relative to said scene;
modulating the saliency of said plurality of letters relative to accuracy of said quantitatively refined feedback, said modulated saliency associated with a predetermined target;
calculating a critical threshold parameter for said subject; and
recording said critical threshold parameter onto a tangible computer readable medium.
2 . The method of claim 1 , further comprising at least one of the additional steps of:
monitoring at least one response error from said subject; and
measuring said response error relative to a predetermined threshold.
3 . The method of claim 1 , wherein said plurality of letters further comprises a word in the English language.
4 . The method of claim 3 , wherein said word is moved in unison.
5 . The method of claim 1 , wherein said plurality of letters further comprises a non-word in the English language.
6 . The method of claim 5 , wherein said non-word is moved in unison.
7 . The method of claim 1 , wherein said step of moving is associated with a predetermined time period.
8 . The method of claim 1 , wherein said step of moving is associated with a predetermined angular degrees of drift.
9 . The method of claim 1 , wherein said critical threshold parameter further comprises an amount of time.
10 . The method of claim 1 , wherein said monitored response error is associated with the location of the real world.
11 . The method of claim 1 , wherein said step of modulating is associated with crossing out parts of at least one letter.
12 . The method of claim 1 , wherein said step of modulating is associated with rotating at least one letter.
13 . The method of claim 1 , wherein said step of modulating is associated with covering said scene with a plurality of flickering and colored letter dots.
14 . The method of claim 1 , wherein said movement is discontinuous.
15 . The method of claim 1 , wherein said movement is continuous.
16 . The method of claim 1 , wherein said movement is associated with change in velocity.
17 . The method of claim 1 , wherein said movement is associated with a random location on said scene.
18 . The method of claim 1 , wherein said movement is associated with a predetermined mathematical relationship.
19 . The method of claim 1 , wherein said received feedback is associated with the capture and tracking of the location of said plurality of letters.
20 . The method of claim 1 , wherein said quantitative refinement is associated with saliency.
21 . The method of claim 1 , wherein said monitored response error is associated with an input device.
22 . The method of claim 1 , wherein said critical threshold parameter is implemented in a different functional impairment assessment test.
23 . An apparatus for quantitative assessment of word recognition sensitivity of a subject comprising:
a display for presenting a scene comprising a plurality of letters and a background;
an input device for tracking movement from said subject;
a control device said control device capable of performing the following steps:
moving said plurality of letters relative to said scene, said movement being tracked by said subject;
receiving feedback from said subject via at least one input device;
quantitatively refining said received feedback relative to said scene;
modulating the saliency of said plurality of letters relative to accuracy of said quantitatively refined feedback, said modulated saliency associated with a predetermined target; and
calculating a critical threshold parameter for said subject; and
a tangible computer readable medium for recording said critical threshold parameter.
24 . A tangible computer readable medium, said tangible computer readable medium containing instructions comprising the steps of:
presenting at least one scene to said subject on a display, said scene comprising a plurality of letters and a background;
moving said plurality of letters relative to said scene, said movement being tracked by said subject;
receiving feedback from said subject via at least one input device;
quantitatively refining said received feedback relative to said scene;
modulating the saliency of said plurality of letters relative to accuracy of said quantitatively refined feedback, said modulated saliency associated with a predetermined target; and
calculating a critical threshold parameter for said subject.