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Saccades evoked in response to electrical stimulation of the posterior bank of the arcuate sulcus

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Abstract

To test the hypothesis that the premotor cortex in and behind the caudal bank of the arcuate sulcus can generate saccades, we stimulated electrically the periarcuate region of alert rhesus monkeys. We were able to produce saccades from sites of the premotor cortex that were contiguous with the frontal eye fields and extended up to 2 mm behind the smooth pursuit area. However, premotor sites often elicited saccades with ipsiversive characteristic vectors, lower peak velocities, and flatter velocity profiles when compared to saccades evoked from the frontal eye field.

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Acknowledgements

The authors wish to thank V. Raos, G. Gregoriou, and V. Papadourakis for participating in some of the early experiments and A. Tzanou and Y. Dalezios for the histology. The financial support of the Action « Herakleitus II » of the Operational Program “Education and Lifelong Learning” (Action’s Beneficiary: General Secretariat for Research and Technology), co-financed by the European Social Fund (ESF) and Greece, is gratefully acknowledged.

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Correspondence to A. K. Moschovakis.

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Neromyliotis, E., Moschovakis, A.K. Saccades evoked in response to electrical stimulation of the posterior bank of the arcuate sulcus. Exp Brain Res 235, 2797–2809 (2017). https://doi.org/10.1007/s00221-017-5012-6

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  • DOI: https://doi.org/10.1007/s00221-017-5012-6

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