Eye Movements and Perceived Visual Direction

Matin, Leonard

doi:10.1007/978-3-642-88658-4_13

Cited by 99 publications

(76 citation statements)

References 142 publications

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“…Less attention has been given to the issue of the uniformity of errors of location across the visual field, but Honda (1995) recently reported that the size of errors changes with target position. The pattern Honda finds is consistent with what Matin andPearce (1965, page 1487) termed a "contraction of visual space in the direction of ocular motion. "…”

Section: Abstract: Saccades; Eye Movements; Extraretinal Position Sisupporting

confidence: 66%

“…Several previous psychophysical studies have demonstrated anticipatory, presaccadic displacement of flashed stimuli in the direction of saccades, up to 100 msec before they start, both in total darkness (e.g., Matin, 1972;Honda, 1991;Schlag and Schlag-Rey, 1995) and with visual referents present (Honda, 1993(Honda, , 1995. The displacement we find is maximal in the 25 msec before saccades and depends on stimulus position; it is in the opposite direction for stimuli beyond the end point of a saccade.…”

Section: Comparison With Previous Studiessupporting

confidence: 55%

“…This undermined the assumption of a correction coinciding with the saccade and cast doubt on the more fundamental assumption that the correction was uniform for all directions in space. Matin andPearce (1965, page 1487) themselves suggested that "compensation" might occur "at different rates at different regions of the visual field." Subsequent findings of Matin and his associates led them to conclude that the ERPS does not coincide with its saccade but is more sluggish (Matin et al, 1969(Matin et al, , 1970.…”

Section: Abstract: Saccades; Eye Movements; Extraretinal Position Simentioning

confidence: 99%

“…This reduced capacity to map visual space may restrict the space within which transient stimuli can be located. This is unlikely to be a problem under normal viewing conditions, in which saccadic velocities of continuous images are beyond the resolution of the parvocellular system (Merigan, 1990), and any erroneous perception during saccades will be masked by the clear images during periods of fixation (MacKay, 1970;Matin, 1972;Campbell and Wurtz, 1978).…”

Section: Model and Its Biological Basismentioning

confidence: 99%

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Apparent Position of Visual Targets during Real and Simulated Saccadic Eye Movements

1997

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It is now well established that briefly flashed single targets are mislocalized in space, not only during saccades but also before them. We show here by several techniques (including a vernier judgment that did not require absolute location in space) that errors appear up to 100 msec before saccades are made and are maximal just before they start. The size and even the sign of errors depend strongly on position in the visual field, the complete pattern of errors suggesting a compression of visual space around the initial fixation point and the target of the impending saccade. The compression was confirmed by displaying multiple rather than single targets and was found to be powerful enough to reduce or even to remove vernier offset for pairs of bars shown simultaneously and to create offsets for colinear bars separated in time by 75 msec. It also reduced the apparent number of parallel bars. When saccades were simulated by moving the display at saccadic speed, there were sometimes errors of location, but only for tasks requiring absolute judgment of position. The pattern of errors differed greatly from that during saccades and, in particular, showed no signs of compression. We can model our saccade results by assuming a shift in the point in space associated with eye position compression of eccentricity along the axis of saccades.

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Section: Abstract: Saccades; Eye Movements; Extraretinal Position Sisupporting

confidence: 66%

Section: Comparison With Previous Studiessupporting

confidence: 55%

Section: Abstract: Saccades; Eye Movements; Extraretinal Position Simentioning

confidence: 99%

Section: Model and Its Biological Basismentioning

confidence: 99%

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Apparent Position of Visual Targets during Real and Simulated Saccadic Eye Movements

1997

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“…While current evidence, which is reviewed elsewhere (Skavenski. Haddad and Steinman, 1972;Matin, 1972Matin, , 1975. is not totally unequivocal, it appears to us to favor the monitoring of the motor command as the main source of extraretinal information about eye movements that is available to perception.…”

mentioning

confidence: 99%

Interaction of perceptually monitored and unmonitored efferent commands for smooth pursuit eye movements

1978

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Abstract-Whenobservers tracked a horizontally moving spot, the path of a second spot moving at an angle to the horizontal was radically misperceived. At a signal observers abruptly switched to tracking the second spot, which was then stabilized foveally. Data concerning resulting eye movements and perceptions support a distinction between the "central" motor command, which is found to be formulated solely from the erroneous perception, and the motor command that finally reaches the eye. which, under some specifiable circumstances, has been "peripherally" transformed so that the actual motion of the eye is appropriate to the actual motion of the target. INl-RODUCTIONSeveral studies have shown that the paths of motion of spots of light moving in the dark are often strikingly misperceived (

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Inferior Parietal Lobule Function in Spatial Perception and Visuomotor Integration

Andersen

1987

Comprehensive Physiology

203

125

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Eye Movements and Perceived Visual Direction

Cited by 99 publications

References 142 publications

Apparent Position of Visual Targets during Real and Simulated Saccadic Eye Movements

Apparent Position of Visual Targets during Real and Simulated Saccadic Eye Movements

Interaction of perceptually monitored and unmonitored efferent commands for smooth pursuit eye movements

Inferior Parietal Lobule Function in Spatial Perception and Visuomotor Integration

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