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Conditioning pp 375-387 | Cite as

Functional Significance of Visually Triggered Discharges in Eye Movement Related Neurons

  • John Schlag
  • Madeleine Schlag-Rey
Part of the Advances in Behavioral Biology book series (ABBI, volume 26)

Summary

Gaze orientation is a quick, natural, almost automatic reaction. Yet, in the couple of hundred milliseconds that separate the appearance of a photic target and the orientation of the gaze to it, the CNS has to make a number of delicate computations and decisions. The where, how, and when of the movement have to be determined. Analysis of single-unit events occurring during this period suggests that the spatial coordinates of the goal are calculated immediately upon stimulus presentation. The information predictive of the trajectory of the orienting movement to be performed appears already available in what, on the basis of fixed latency, would be considered stimulus-locked visual response. The actual launching of the saccade is a separate, subsequent decision.

Keywords

Receptive Field Target Onset Alert Monkey Thalamic Afferents Saccade Vector 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Bizzi, E., 1968, Discharge of frontal eye field neurons during saccadic and following eye movements in unanesthetized monkeys, Exp. Brain Res. 6:69.PubMedCrossRefGoogle Scholar
  2. Horne, M. K., and Porter, R., 1980, The discharges during movement of cells in the ventrolateral thalamus of the conscious monkey, J. Physiol. (London), 304:349.PubMedGoogle Scholar
  3. Hyvarinen, J., and Poranen, A., 1974, Function of the parietal association area 7 as revealed from cellular discharges in alert monkeys, Brain 97: 673.Google Scholar
  4. Kasdon, D. L., and Jacobson, S., 1978, The thalamic afferents to the inferior parietal lobule of the rhesus monkey, J. comp. Neurol. 177:685.Google Scholar
  5. Kotchabhakdi, N., Rinvik, E., Yingchareon, K., and Walberg, F., 1980, Afferent projections to the thalamus from the perihypoglossal nuclei, Brain Res. 187: 457.Google Scholar
  6. Leichnetz, G. R., Spencer, R. F., Hardy, S. G. P., and Astruc, J., 1981, The prefrontal corticotectal projection in the monkey: an anterograde and retrograde horseradish peroxidase study, Neurosci. 6: 1023.Google Scholar
  7. Luschei, E. S., and Fuchs, A.F., 1972, Activity of brainstem neurons during eye movements of alert monkeys, J. Neurophysiol. 35:445.PubMedGoogle Scholar
  8. Lynch, J. C., Mountcastle, V. B., Talbot, W. H., and Yin, T. C., 1977, Parietal lobe mechanisms for direct attention, J. Neurophysiol. 40:362Google Scholar
  9. Maldonado, H., and Schlag, J., 1981, Head and eye movements evoked by electrical stimulation of thalamic gaze center, Neurosci. Abstr. (in press).Google Scholar
  10. Mohler, C. W., Goldberg, M. E., and Wurtz, R. H., 1973, Visual receptive fields of frontal eye field neurons, Brain Res. 61:385.Google Scholar
  11. Orem, J., Schlag-Rey, M., and Schlag, J., 1973, Unilateral visual neglect and thalamic intralaminar lesions in the cat, Exp. Neurol. 40:784.Google Scholar
  12. Schlag, J., Lehtinen, I., and Schlag-Rey, M., 1974, Neuronal activity before and during eye movements in the thalamic internal medullary lamina of the cat, J. Neurophysiol. 37:982.PubMedGoogle Scholar
  13. Schlag, J., and Schlag-Rey, M., 1971, Induction of oculomotor responses from thalamic internal medullary lamina in the cat, Exp. Neurol. 33:498.PubMedCrossRefGoogle Scholar
  14. Schlag, J., and Schlag-Rey, M., 1977, Visuomotor properties of cells in the cat thalamic internal medullary lamina, in: “Control of gaze by brain stem neurons,” R. Baker and A. Berthoz, eds., Elsevier, Amsterdam, pp. 453–462.Google Scholar
  15. Schlag-Rey, M., and Schlag, J., 1977, Visual and presaccadic neuronal activity in the thalamic internal medullary lamina of cat: A study of targeting, J. Neurophysiol. 40:156.PubMedGoogle Scholar
  16. Schlag-Rey, M., and Schlag, J., Eye-movement related neuronal activity in the central thalamus of monkeys, in: “Progress in oculomotor research,” A. Fuchs and W. Becker, eds., Elsevier, Amsterdam, (in press).Google Scholar
  17. Thompson, J. A., 1980, How do we use visual information to control locomotion?, TINS 3: 247.Google Scholar
  18. Watson, R. T., Mohler, B. D., and Heilman, K. M., 1978, Nonsensory neglect, Ann. Neurol. 3:505.Google Scholar

Copyright information

© Springer Science+Business Media New York 1982

Authors and Affiliations

  • John Schlag
    • 1
  • Madeleine Schlag-Rey
    • 1
  1. 1.Department of Anatomy and Brain Research InstituteUCLA Medical SchoolLos AngelesUSA

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