Quantification of Visual Fixation during Active Head Movements.
نویسندگان
چکیده
منابع مشابه
Instantaneous rotation axes during active head movements.
Rotation axes were calculated during active head movements using a motion analysis system. The mean rotation axis for 1 Hz head pitch when seated was posterior (6 mm) and inferior (21 mm) to the interaural axis, shifting 16 mm downwards when standing. During seated 2 Hz head pitch the rotation axis was close to the interaural axis, shifting downwards 15 mm when standing. This downward shift sug...
متن کاملTemporal Encoding of Spatial Information during Active Visual Fixation
Humans and other species continually perform microscopic eye movements, even when attending to a single point. These movements, which include drifts and microsaccades, are under oculomotor control, elicit strong neural responses, and have been thought to serve important functions. The influence of these fixational eye movements on the acquisition and neural processing of visual information rema...
متن کاملThe guidance of eye movements during active visual search
An analysis of monkey eye movements in classic conjunction and feature search tasks was made. The task was to find and fixate a target in an array of stimuli. Saccades targeted stimuli accurately (red and green bars, 1.25 x 0.25 degrees), landing most of the time within 1.0 degree of the stimulus center and rarely in blank areas far from any stimulus. Monkeys used target color, but not orientat...
متن کاملThe influence of head-mounted displays on head and eye movements during visual search
This report describes an eye-tracking experiment which was conducted in the context of the student project Analyse und Modellierung von Blickbewegungen (Analysis and Modeling of Eye Movements) in summer term 2009 at Bielefeld University. The goal was to determine the influence of headmounted displays (HMDs) on natural visual search behavior. Subjects were instructed to find a previously specifi...
متن کاملMeasurement of the immobilisation efficacy of a head fixation system
Background: In order to assign appropriate planning target volume (PTV) margins, each centre should measure the patient positioning deviations for their set-up techniques. At the Royal Marsden Hospital, UK, a conformal shell (cast) system is used when a stereotactic frame is not suitable. In this paper, we report on a series of measurements with the aim of obtaining the systematic and random ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Equilibrium Research
سال: 1995
ISSN: 0385-5716,1882-577X
DOI: 10.3757/jser.54.511