Human Infants’ Accommodation Responses to Dynamic Stimuli
نویسندگان
چکیده
منابع مشابه
Dynamic accommodation responses to stationary colored targets.
PURPOSE When the targets or the background in a display are different colors, longitudinal chromatic aberration ensures that there is no single correct accommodative response. The purpose of the present study was to determine whether the response becomes more variable when viewing certain multicolor displays. METHODS Accommodative responses of five young participants were measured with a dyna...
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The aim was to identify the cone contributions and pathways for reflex accommodation. Twelve illumination conditions were used to test specified locations in cone-contrast space. Accommodation was monitored continuously in a Badal optometer while the grating stimulus (2.2 c/d sine-wave; 0.27 modulation) moved sinusoidally (0.195 Hz) towards and away from the eye from a mean position of 2.00 D (...
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It is not known whether the instincts of wild horses have remained strong during their centuries of domestication. Knowledge of this matter would give riders the opportunity to know more about the behavior of horses and consequently about safety for both horses and riders. In this current research, we studied the behavior of fifteen Caspian miniature horses of different ages and sexes using sti...
متن کاملPreterm Infants' Responses to Aversive Stimuli
Irritability levels and activity reactivity to aversive tactile stimuli were compared for 144 full-term neonates and 191 preterm infants. Irritability ratings increased across the five trials both during and post stimulation for full-term females and males and for preterm females, but not for preterm males. Activity ratings decreased across trials during stimulation for all groups except preter...
متن کاملAccommodation and vergence latencies in human infants
PURPOSE Achieving simultaneous single and clear visual experience during postnatal development depends on the temporal relationship between accommodation and vergence, in addition to their accuracies. This study was designed to examine one component of the dynamic relationship, the latencies of the responses. METHODS Infants and adults were tested in three conditions (i) binocular viewing of ...
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ژورنال
عنوان ژورنال: Investigative Opthalmology & Visual Science
سال: 2007
ISSN: 1552-5783
DOI: 10.1167/iovs.06-0734