Abstract
Subjects were asked to make a saccade to a visual target flashed in the dark during a prior primary saccade, and to report its apparent position by moving an adjustable light spot to that position. When targets were presented at the beginning of the primary saccade, subjects perceptually mislocated them in the direction of the saccade, whereas when targets were presented immediately before the end of the primary saccade, the flashed targets were mislocated in the opposite direction. The perceptually localized position of the target was primarily determined by its retinal position. However, at all actual and retinal positions of the target, the localized position shifted from the position that would be predicted if the location of the target was determined only by its retinal position to the prior primary sacade direction. The results were discussed in relation to extraretinal eye position signals. Subjects moved their eyes not to the actual position of the target, but to its apparent position. In some trials, there was a discrepancy between perceptual and oculomotor localization, which was interpreted as having been caused by the imprecise localization ability of the oculomotor system.
Article PDF
Similar content being viewed by others
References
Becker, W., &Fuchs, A. F. (1969). Further properties of the human saccadic system: Eye movements and correction saccades with and without visual fixation points.Vision Research,9, 1247–1258.
Bischof, N., &Kramer, E. (1968). Untersuchungen und Überlegungen zur Richtungswahmehmung bei willkürlichen sakkadischen Augenbewegungen.Psychologische Forschung,32, 185–218.
Bridgeman, B., Lewis, S., Heit, G., &Nagle, M. (1979). Relation Between cognitive and motor-oriented systems of visual position perception.Journal of Experimental Psychology: Human Perception & Performance,5, 692–700.
Findlay, J. M. (1985). Visual information processing for saccadic eye movements. In A. Hein & M. Jeannerod (Eds.),Spatially oriented behavior (pp. 281–303). Berlin: Springer-Verlag.
Hallett, P. E., &Lightstone, A. D. (1976a). Saccadic eye movements towards stimuli triggered by prior saccades.Vision Research,16, 99–106.
Hallett, P. E., &Lightstone, A. D. (1976b). Saccadic eye movements to flashed targets.Vision Research,16, 107–114.
Hansen, R. M. (1979). Spatial localization during pursuit eye movements.Vision Research,19, 1213–1221.
Hansen, R. M., &Skavenski, A. A. (1977). Accuracy of eye position information for motor control.Vision Research,17, 919–926.
Hansen, R. M., &Skavenski, A. A. (1985). Accuracy of spatial localization near the time of saccadic eye movements.Vision Research,25, 1077–1082.
Honda, H. (1985). Spatial localization in saccade and pursuit-eye-movement conditions: A comparison of perceptual and motor measures.Perception & Psychophysics,38, 4146.
Mateeff, S. (1978). Saccadic eye movements and localization of visual stimuli.Perception & Psychophysics,24, 215–224.
Matin, L. (1976). Saccades and extraretinal signals for visual direction. In A. Monty & J. W. Senders (Eds.),Eye movements and psychological Processes (pp. 205–219). New York: Erlbaum.
Matin, L., Matin, E., &Pearce, D. G. (1969). Visual perception of direction when voluntary saccades occur: I. Relation of visual direction of fixation target extinguished before a saccade to a flash presented during the saccades.Perception & Psychophysics,5, 65–80.
Matin, L..Matin, E., &Pola, J. (1970). Visual perception of direction when voluntary saccades occur: II, Relation of visual direction of a fixation target extinguished before a saccade to a subsequent test flash presented before the saccade.Perception & Psychophysics,8, 9–14.
Matin, L., &Pearce, D. G. (1965). Visual perception of direction for stimuli flashed during voluntary saccadic eye movements.Science,148, 1485–1488.
Mitrani, L., Dimitrov, G., Yakimoff, N., &Mateeff, S. (1979). Oculomotor and perceptual localization during smooth eye movements.Vision Research,19, 609–612.
Prablanc, C., &Jeannerod, M. (1975). Corrective saccades. Dependence on retinaI reafference signals.Vision Research,15, 465–469.
Von Holst, E., &Mittelstaedt, H. (1950). Das Reafferenzprinzip.Naturwissenschaften,37, 464–476.
Weber, R. B., &Daroff, R. B. (1971). The metric of horizontal saccadic eye movements in normal humans.Vision Research,11, 921–928.
Author information
Authors and Affiliations
Additional information
This research was in part supported by a 1985 Grant-in-Aid for Scientific Research (No. 61510038) from the Japanese Ministry of Education, Science and Culture to the author.
Rights and permissions
About this article
Cite this article
Honda, H. Perceptual localization of visual stimuli flashed during saccades. Perception & Psychophysics 45, 162–174 (1989). https://doi.org/10.3758/BF03208051
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.3758/BF03208051