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| Number | Title | Issue Date |
| 7267440 | Method for recording, assessing and premeditating performance on grapho-motor and writing tasks A computerized method for recording and scoring the process by which an examinee performs cognitive or psychological grapho-motor tasks that call for the use of pencil and paper, such as drawing or copying graphical configurations or text. The examinee uses a digita... | 09/11/2007 |
| 4789234 | Apparatus and method for testing the motion contrast visual sensitivity of an individual The motion contrast visual sensitivity of an individual is tested by means of a target having thereon patches each composed of alternating light and dark bars, with individual patches varying in contrast and spatial frequency, and also in orientation. The... | 12/06/1988 |
| 4726673 | Tachistoscope for presenting stimuli in lateralized form A tachistoscope system is presented in which separate images may be sent to the left and right hemispheres of the visual cortex. A subject-worn viewing system having electro-optical valves is used to cover the right and left visual fields of the subject a... | 02/23/1988 |
| 4116547 | Tachistoscopic focus control Apparatus for the tachistoscopic projection of an image of projectable material. The apparatus includes a supporting structure and a light source. A lens mechanism is on the supporting structure optically aligned with the light source. The supporting stru... | 09/26/1978 |
| 3969020 | Automatic refraction apparatus and method Apparatus and method provide for automatically measuring the refractive error of the human eye and thus the prescription for lens or eye glasses for correcting this error. Test symbols are alternately presented at two different locations on a test screen ... | 07/13/1976 |
