11. A method for obtaining eye-fixation duration data or eye-fixation duration and location data for assessing the effect of semantic associative priming on a patient using an eyetracking system comprising at least one video camera and at least one computer that is configured to measure and record the patient's eye-fixation data, the method comprising: a. presenting the patient with a prime word; b. presenting the patient with a visual stimulus comprising a plurality of images wherein one of the images is a target image that has a high semantic association with the prime word; c. measuring and recording eye-fixation duration data during steps a and b, wherein an eye fixation is a relatively stable position of the eye for a minimum duration of at least about 40 milliseconds with some slight tolerance in the vertical and horizontal dimensions; and d. analyzing the eye-fixation duration data to assess the effect of semantic associative priming on the patient.
11. A method for obtaining eye-fixation duration data or eye-fixation duration and location data for assessing the effect of semantic associative priming on a patient using an eyetracking system comprising at least one video camera and at least one computer that is configured to measure and record the patient's eye-fixation data, the method comprising: a. presenting the patient with a prime word; b. presenting the patient with a visual stimulus comprising a plurality of images wherein one of the images is a target image that has a high semantic association with the prime word; c. measuring and recording eye-fixation duration data during steps a and b, wherein an eye fixation is a relatively stable position of the eye for a minimum duration of at least about 40 milliseconds with some slight tolerance in the vertical and horizontal dimensions; and d. analyzing the eye-fixation duration data to assess the effect of semantic associative priming on the patient. 14. The method in accordance with claim 11 , wherein the prime word is presented textually.