fixation point


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fixation point

The fovea or point on the retina where the visual axes (lines) meet the point of clearest vision.
See also: point
References in periodicals archive ?
During this interval, a fixation point was presented at the center of the screen (see Fig.
Subjects were asked to keep their eyes on the fixation point; after 5 seconds of fixation, the operator inserted a base-out prism in front of the dominant eye in order to elicit a horizontal fusional convergence movement.
Given that s is the cluster center of fixation point i, the assignment of each non-center point to its cluster center represents the clustering results.
The fixation times (i.e., the mean number of fixation times in each picture), mean fixation duration (i.e., the mean fixation duration for each fixation point), saccade times (i.e., the mean saccade times for each picture), saccade amplitude (i.e.
The speed of the driver's fixation point reflects the speed of information processing in the previous fixation and the speed at which the subject searches for the next target.
The two views are obtained from the viewpoint [E'.sub.n] and the fixation point [F.sub.n] set in section 2.4.2.
But it was related with higher complication rate as compared to single fixation point by mini plate.7
The gaze points were grouped into a fixation point if they stayed within a radius of 30 pixels for 100 msec.
With that purpose, an active vision paradigm is used: the behaviour-dependent processing of visual data for attentive visual scrutiny based on shifting the fixation point of different targets (active foveation).
It is known that covert attention, or orientation of the attention toward visual stimuli that appear in areas other than the fixation point, improves the response of the visual system [35].
As will be explained below, on some of the trials a tone was presented at the same time as the fixation point. Its duration was 100 ms, their wave length was 500 Hz and its intensity was 80 dB (cfr.
The extent to which an eccentric fixation point develops these characteristics determines whether the anomalous situation is eccentric fixation or viewing.