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  2. Posner cueing task - Wikipedia

    en.wikipedia.org/wiki/Posner_cueing_task

    Overt attention involves directed eye movements, known as saccades, to consciously focus the eye on a target stimulus. Covert attention involves mental focus or attention to an object without significant eye movement, and is the predominant area of interest when using the Posner cueing task for research.

  3. Cranial nerve examination - Wikipedia

    en.wikipedia.org/wiki/Cranial_nerve_examination

    Pupillary constriction is tested for on the eye examined (direct response) and on the opposite eye (consensual response). The swinging flashlight test involves moving the light between the two pupils. Normally both direct and consensual responses are elicited when the light shines on an eye, and some dilation will occur during the swing between.

  4. Jaeger chart - Wikipedia

    en.wikipedia.org/wiki/Jaeger_chart

    The Jaeger chart is an eye chart used in testing near visual acuity.It is a card on which paragraphs of text are printed, with the text sizes increasing from 0.37 mm to 2.5 mm. [1] This card is to be held by a patient at a fixed distance from the eye dependent on the J size being read.

  5. Joint attention - Wikipedia

    en.wikipedia.org/wiki/Joint_attention

    A mother and her daughter engaged in joint attention. Joint attention or shared attention is the shared focus of two individuals on an object. It is achieved when one individual alerts another to an object by means of eye-gazing, pointing or other verbal or non-verbal indications.

  6. Inhibition of return - Wikipedia

    en.wikipedia.org/wiki/Inhibition_of_return

    While exogenous cues are solely what stimuli are presented in one's surrounding environment, endogenous cues are based on the internal goals, beliefs, desires, and interpretation of the person. [7] While an outside stimulus may be present, such as a stop sign, it is the individuals interpretations and knowledge of the sign that is the ...

  7. Visual system - Wikipedia

    en.wikipedia.org/wiki/Visual_system

    The visual system is the physiological basis of visual perception (the ability to detect and process light).The system detects, transduces and interprets information concerning light within the visible range to construct an image and build a mental model of the surrounding environment.

  8. Confrontation visual field testing - Wikipedia

    en.wikipedia.org/wiki/Confrontation_visual_field...

    Confrontation visual field testing is an important part of a routine ophthalmological or neurological examination. It can be used for rapid and gross assessment of large-scale visual field problems due to ophthalmological or neurological diseases, such as homonymous and heteronymous hemianopias, quadranopsia, altitudinal visual loss, central/centrocecal scotoma etc. [1] [2] Test using a red ...

  9. Visual field test - Wikipedia

    en.wikipedia.org/wiki/Visual_field_test

    The exam may be performed by a technician in one of several ways. The test may be performed by a technician directly, with the assistance of a machine, or completely by an automated machine. Machine-based tests aid diagnostics by allowing a detailed printout of the patient's visual field.