Eye movements are a reflection of cognitive processes

Introduction Mind is an interesting element in human life not only because of its complexity and ability, but also due to its uncertainty. How did psychology start to understand so ambiguous and complicated things? Obviously, by observing and measuring the product of the cognitive processes occurring through the interaction between the outside world and the inside world. The term "cognitive process" is a fairly collective term referring to a series of psychological processes such as perception, thinking, speaking, acting, planning, and imaging (Ward, 2006).

Eye tracking This method is used to study various cognitive processes, most notably visual and language processing. Eye gaze is related to personal attention focus. Therefore, by monitoring eye movements, you can investigate what kind of information is being processed at a specific time. With eye tracking, you can study the cognitive process in a short time. Eye movement is an online decision that reflects the duration of the task and provides us with insight as to how these decisions can be handled.

Eye movement during reading provides an online index of cognitive processes behind language understanding. In fact, eyeball's attention to a specific word depends greatly on how easy it is to handle it. Vocabulary variables such as the frequency of vocabulary and predictability are based on misprints such as the recording period (for review, see Rayner, 1998, 2009), the reading technique (Ashby et al., 2005) and the difficulty of fonts It has a big influence on the factor (Rayner et al.). Al. , 2006; Slattery and Rayner, 2010)

Alfred L. Yarbus, a psychophysicist, began researching eye movements in the 1960's. Since that time, research has linked eyes to many cognitive processes, emotional perception, developmental psychopathology and language processing, and user / consumer behavior and marketing strategies. Briefly, the instrument records the position and motion of the eye by tracking the light reflected from the cornea and provides insight into the autonomous processing of visual information for clinical and experimental applications. The latest eye tracking technology, such as SensoMotoric Instruments (SMI) gaze and eye tracking system, accurately records and reproduces the eye position and motion of subjects, programs such as SMI BeGaze exclude outliers, identify regions of interest (AOI) And organize the original data