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Eye contact signals intent of communication and the social significance of eye gaze engages theory of mind computations. [13] Because there is an overlap of activation in structures involved in theory of mind computation with regions associated with eye contact detection, this model proposes that this is the mechanism that causes the eye ...
The Stiles–Crawford Effect is quantified as a function of distance (d) away from the center of the pupil using the following equation: () =,where η is the relative luminance efficiency, and d is defined as positive on the temporal side of the pupil and negative on the nasal side of the pupil.
Eye movement desensitization and reprocessing (EMDR) is a form of psychotherapy designed to treat post-traumatic stress disorder (PTSD). It was devised by Francine Shapiro in 1987. EMDR involves talking about traumatic memories while engaging in side-to-side eye movements or other forms of bilateral stimulation.
The frontal eye field plays a very important role when it comes to eye movements. [9] Particularly the frontal eye field is responsible for much of the saccadic eye movements that eyes make. [10] Once the frontal eye field is activated by the corollary discharge signal, it sends a predictive signal to the occipital lobe. This signal essentially ...
The accommodation reflex refers to the swelling of the lens of the eye that occurs when one looks at a near object (for example: when reading, the lens adjusts to near vision). [1] The eye's blind spot is a result of the absence of photoreceptors in the area of the retina where the optic nerve leaves the eye. [1]
Direct impingement is a type of gas operation for a firearm that utilizes gas from a fired cartridge to impart force on the bolt carrier or slide assembly to cycle the action. Firearms using direct impingement are theoretically lighter, more accurate, and less expensive than firearms using cleaner and cooler gas piston systems.
Eye contact is also an important element in flirting, where it may serve to establish and gauge the other's interest in some situations. Mutual eye contact that signals attraction initially begins as a brief glance and progresses into a repeated volleying of eye contact. [5] Encouraged eye contact by narrowing the visible face down to the eyes.
Alhazen (965 – c. 1040) carried out many investigations and experiments on visual perception, extended the work of Ptolemy on binocular vision, and commented on the anatomical works of Galen. [ 9 ] [ 10 ] He was the first person to explain that vision occurs when light bounces on an object and then is directed to one's eyes.