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  • stimulus
  • Although saccades can occur in complete darkness, they are often elicited when something attracts attention and the observer directs the foveas toward the stimulus. (nih.gov)
  • position
  • With each saccade, the abducens neurons reach a new baseline level of discharge that is correlated with the position of the eye in the orbit. (nih.gov)
  • made saccades
  • In this restricted amplitude dataset, the females with FASD made saccades with significantly lower velocity and longer duration, whereas the males with FASD did not differ from the control group. (frontiersin.org)
  • neurons
  • Our data suggest that this early activity codes motor preparation because its activity was related to not only the metrics but also the timing of the saccade, with 94% (29/31) of the neurons tested having significant negative correlations between discharge rate and SRT. (jneurosci.org)
  • In this study, we look at how simply varying the probability of the saccade being directed into the response field of a neuron during a block of trials (100, 50, and 0%) influences the relationship between early, pretarget activity of collicular saccade-related neurons and subsequent SRTs. (jneurosci.org)
  • With each saccade, the abducens neurons reach a new baseline level of discharge that is correlated with the position of the eye in the orbit. (nih.gov)
  • anticipatory
  • This view is supported by cases in which exceptionally high levels of pretarget activity were associated with anticipatory saccades into the response field of a neuron that occurred in advance of the target being presented. (jneurosci.org)
  • frontal eye field
  • The frontal eye field (FEF), supplementary eye field (SEF), and dorsolateral prefrontal cortex (DPC) are considered to be the predominate brain regions involved in the generation of incongruent saccades. (jneurosci.org)
  • 1997
  • Saccade averaging has been explained in terms of a weighted average (Tipper, Howard, & Jackson, 1997 ), which assumes that each element evokes a peak of activity within a common saccade map. (arvojournals.org)
  • generate
  • To generate a different saccade, the default movement plan has to be canceled and a new motor command programmed. (jneurosci.org)
  • An example of how the PPRF works with the abducens and oculomotor nuclei to generate a horizontal saccade to the right is shown in Figure 20.7 . (nih.gov)
  • avoid unwanted
  • Our results demonstrate that the anti-saccade task involves (and may require) the attenuation of preparatory and stimulus-related activity in the SC to avoid unwanted pro-saccades. (jneurosci.org)
  • frequency
  • The SI effect is manifest as a decrease in saccade frequency observed shortly after distractor onset, with a maximum inhibitory influence occurring around 90 ms later (Reingold & Stampe, 1999 , 2002 , 2004 ). (arvojournals.org)
  • neuron
  • We found that, as the likelihood of the saccade being generated into the response field of the neuron increased, the level of neuronal activity preceding target presentation also increased. (jneurosci.org)
  • patients
  • In contrast, AD and PD patients made normal short latency saccades in the same task. (frontiersin.org)
  • The study is a part of a long term program aiming to provide a complete characterization of saccades in DLB, AD patients and controls (national PHRC). (frontiersin.org)
  • For PD patients, however, the results of express saccades are controversial. (frontiersin.org)
  • Differential auditory-oculomotor interactions in patients with right vs. left sided subjective tinnitus: a saccade study. (cnrs.fr)
  • To characterize the saccades in patients with Norrbottnian GD3 with respect to their neurological and cognitive status using a computer-based eye-tracking technique. (frontiersin.org)
  • directs
  • Distractor- and target-related activity thus merge into one resultant vector which directs the saccade to a weighted average location between the elements (see also Godijn & Theeuwes, 2002 ). (arvojournals.org)
  • Although saccades can occur in complete darkness, they are often elicited when something attracts attention and the observer directs the foveas toward the stimulus. (nih.gov)
  • trials
  • Blinks evoked at later times were accompanied with saccades to the correct end point location: the singleton on prosaccade trials and the opposite distractor on antisaccade trials. (jneurosci.org)
  • gaze
  • At first glance, the periods in which gaze position is constant-the fixations-can clearly be discriminated from the periods of rapid gaze position change-the saccades. (springer.com)