Spatial attention and latencies of saccadic eye movements
نویسندگان
چکیده
منابع مشابه
Spatial attention and latencies of saccadic eye movements
Recent theories of visual attention, such as the oculomotor readiness theory of Klein (1980) (Does oculomotor readiness mediate cognitive control of the visual attention. In: R. Nickerson, Attention and performance, Hillsdale: Erlbaum), the premotor theory of Rizzolati (1983) (Mechanisms of selective attention in mammals. In: J.P. Ewart, R.R. Capranica, D.J. Ingle, Advances in vertebrate Neuroe...
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Several lines of evidence suggest that planning eye movements and directing visuospatial attention share overlapping brain mechanisms. This study tested whether spatial attention can be enhanced by altering oculomotor signals within the brain. Monkeys performed a spatial attention task while neurons within the frontal eye field, an oculomotor area within prefrontal cortex, were electrically sti...
متن کاملThe role of visual attention in saccadic eye movements.
The relationship between saccadic eye movements and covert orienting or visual spatial attention was investigated in two experiments. In the first experiment, subjects were required to make a saccade to a specified location while also detecting a visual target presented just prior to the eye movement. Detection accuracy was highest when the location of the target coincided with the location of ...
متن کاملMechanisms of visual attention revealed by saccadic eye movements.
This paper summarizes recent data on the initiation of saccadic eye movement in relation to the mechanisms of visual attention. In particular, the occurrence of express saccades, defined by their extremely short reaction times, is discussed on the basis of the observation that these saccades do not occur when the subjects (man or monkey) are attending to either a fixation point or to any other ...
متن کاملSaccadic Eye Movement Latencies to Multimodal Stimuli
The saccadic latencies to multimodal stimuli of 10 subjects were studied to determine the range of intersubject variations and to derive values which are representative of the normal population. Responses to simple step and pulse-step stimuli were measured where the target mode and pulse width were randomized. A matrix notation was introduced to describe all of the relevant latency variables wi...
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ژورنال
عنوان ژورنال: Vision Research
سال: 1999
ISSN: 0042-6989
DOI: 10.1016/s0042-6989(98)00190-4