Abstract
A functional model of target selection in the saccadic system is presented, incorporating elements of visual processing, motor planning, and motor control. We address the integration of visual information with pre-information. which is provided by manipulating the probability that a target appears at a certain location. This integration is achieved within a dynamic representation of planned eye movement which is modeled through distributions of activation on a topographic field. Visual input evokes activation, which is also constrained by lateral interaction within the field and by preshaping input representing pre-information. The model describes target selection observable in paradigms in which visual goals are presented at more than one location. Specifically, we model the transition from averaging, where endpoints of first saccades fall between two visual target locations, to decision making, where endpoints of first saccades fall accurately onto one of two simultaneously presented visual targets. We make predictions about how metrical biases of first saccades are induced by pre-information about target locations acquired by learning. When coupled to a motor control stage, activation dynamics on the planning level contribute to stabilizing gaze under fixation conditions. The neurophysiological relevance of our functional model is discussed.
Similar content being viewed by others
References
Amari S (1977) Dynamics of pattern formation in lateral-inhibition type neural fields. Biol Cybern 27: 77–87
Amari S (1989) Dynamical stability of formation of cortical maps. In: Arbib MA, Amari S (Eds) Dynamic interaction in neural networks: models and data. Springer, Berlin Heidelberg New York, pp 15–34
Amari S, Arbib MA (1977) Competition and cooperation in neural neuts. In: Metzler J (eds) Systems neuroscience. Academic Press, London, pp 119–165
Chipalkatti R, Arbib MA (1987) The prey localization model: a stability analysis. Biol Cybern 57: 287–299
Chipalkatti R, Arbib MA (1988) The cue interaction model of depth perception: a stability analysis. J Math Biol 26: 235–262
Coren S, Hoenig P (1972) Effect on non-target stimuli upon length of voluntary saccades. Percept Motor Skills 34: 499–508
Dev P (1975) Perception of depth surfaces in random-dot stereograms: a neural model. Int J Man-Machine Studies 7: 511–528
Didday RL (1976) A model of visuomotor mechanisms in the frog optic tectum. Math Biosci 30: 169–180
Droulez J, Berthoz A (1991) A neural network model of sensoritopic maps with predictive short-term memory properties. Proc Natl Acad Sci USA 88: 9653–9657
Findlay JM (1980) The visual stimulus for saccadic eye movements in human observers. Perception 9: 7–21
Findlay JM (1982) Global visual processing for saccadic eye movements. Vision Res 22: 1033–1045
Fischer B, Weber H (1993) Express saccades and visual attention. Behav Brain Sci 16: 553–610
Galletti C, Battaglini PP, Fattori P (1993) Parietal neurons encoding spatial locations in craniotopic coordinates. Exp Brain Res 96: 221–229
Gisbergen JAM van, Gielen JAM, Cox H, Bruijns J, Kleine Schaars H (1981) Relation between metrics of saccades and stimulus trajectory in visual target tracking: implications for models of the saccadic system. In: Fuchs AF, Becker W (eds) Progress in oculomotor research. Elsevier, Amsterdam, pp 17–27
Gisbergen JAM van, Opstal AJ van, Tax AAM (1987) Collicular ensemble coding of saccades based on vector summation. Neuroscience 21: 541–555
Glimscher PW, Sparks DL (1993a) Representation of averaging saccades in the superior colliculus of the monkey. Exp Brain Res 95:429–435
Glimscher PW, Sparks DL (1993b) Effects of low-frequency stimulation of the superior colliculus on spontaneous and visually guided saccades. J Neurophysiol 69: 953–964
Goldberg ME, Wurtz RH (1972) Activity of superior colliculus in behaving monkey. I. Visual receptive fields of single neurons. J Neurophysiol 35: 542–596
Hallet PE, Lightstone AD (1976) Saccadic eye movement towards stimuli triggered by prior saccades. Vision Res 16: 99–106
He P, Kowler E (1989) The role of location probability in the programming of saccades: implications for the center-of-gravity tendencies. Vision Res 29: 1165–1181
House DH (1988) A model of the visual localization of prey by frog and toad. Biol Cybern 58: 173–192
Jürgens R, Becker W, Kornhuber HH (1981) Natural and drug-induced variations of velocity and duration of human saccadic eye movements: evidence for a control of the neural pulse generator by local feedback. Biol Cybern 39: 87–96
Kopecz K, Engels C, Schöner G (1993) Dynamic field approach to target selection in gaze control. In: Gielen S, Kappen B (eds) ICANN'93. Springer, Berlin Heidelberg New York, pp 96–101
Kowler E (1990) The role of visual and cognitive processes in the control of eye movement. In: Kowler E (eds) Eye movements and their role in visual and cognitive processes. Elsevier, Amsterdam, pp 1–70
Lefèvre P, Galiana HL (1992) Dynamic feedback to the superior colliculus in a neural network model of the gaze control system. Neural Networks 5: 871–890
Mikhailov AS (1990) Foundations of synergetics. I. Distributed active systems. Springer, Berlin Heidelberg New York
Munoz DP, Wurtz RH (1993) Fixation cells in monkey superior colliculus. II. Reversible activation and deactivation. J Neurophysiol 70:576–589
Opstal AJ van, Gisbergen JAM van (1989) A nonlinear model for collicular spatial interactions underlying the metrical properties of electrically elicited saccades. Biol Cybern 60: 171–183
Opstal AJ van, Gisbergen JAM van (1990) Role of superior colliculus in saccade averaging. Exp Brain Res 79: 143–149
Ottes FP, Gisbergen JAM van, Eggermont JJ (1984) Metrics of saccade responses to visual double stimuli: two different modes. Vison Res 24:1169–1179
Ottes FP, Gisbergen JAM van, Eggermont JJ (1985) Latency dependence of colour-based target vs nontarget discrimination by the saccadic system. Vision Res 25: 849–862
Pélisson D, Guitton D, Munoz DP (1989) Compensatory eye and head movements generated by the cat following stimulation-induced perturbations in gaze position. Exp Brain Res 78: 654–658
Robinson DA (1975) Oculomotor control signals. In: Lennerstrand G, Bach-y Rita P (eds) Basic mechanisms of ocular motility and their clinical implications. Pergamon Press, Oxford, pp 337–374
Schöner G (1994) From interlimb coordination to trajectory formation: common dynamical principles. In: Swinnen SP, Heuer H, Massion J, Casaer P (eds) Interlimb coordination: neural, dynamical, and cognitive constraints. Academic Press, London, pp 339–368
Schöner G, Kelso JAS (1988) A synergetic theory of environmentally pecified and learned patterns of movement coordination. I. Relative phase dynamics. Biol Cybern 58: 71–80
Seelen W von (1968) Informationsverarbeitung in homogenen Netzen von Neuronenmodellen. Kybernetik 5: 133–148
Sekuler R, Blake R (1990) Perception, 2nd edn. McGraw-Hill, New York
Steinman RM, Haddad GM, Skavenski AA, Wyman D (1973) Miniature eye movements. Science 181: 810–819
Tweed DB, Vilis T (1990) The superior colliculus and spatiotemporal translation in the saccadic system. Neural Networks 3: 75–86
Waitzmann DM, Ma TP, Optican LM, Wurtz RH (1991) Superior colliculus neurons mediate the dynamic characteristics of saccades. J Neurophysiol 66: 1716–1737
Westheimer G, Hauske G (1975) Temporal and spatial interference with vernier acuity. Vision Res 15: 1137–1141
Wurtz RH, Goldberg ME (Eds) (1989) The neurobiology of saccadic eye movements. Elsevier, Amsterdam
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kopecz, K., Schöner, G. Saccadic motor planning by integrating visual information and pre-information on neural dynamic fields. Biol. Cybern. 73, 49–60 (1995). https://doi.org/10.1007/BF00199055
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00199055