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Heading representations in primates are compressed by saccades

Author

Listed:
  • Frank Bremmer

    (Philipps-Universität Marburg)

  • Jan Churan

    (Philipps-Universität Marburg)

  • Markus Lappe

    (University of Muenster)

Abstract

Perceptual illusions help to understand how sensory signals are decoded in the brain. Here we report that the opposite approach is also applicable, i.e., results from decoding neural activity from monkey extrastriate visual cortex correctly predict a hitherto unknown perceptual illusion in humans. We record neural activity from monkey medial superior temporal (MST) and ventral intraparietal (VIP) area during presentation of self-motion stimuli and concurrent reflexive eye movements. A heading-decoder performs veridically during slow eye movements. During fast eye movements (saccades), however, the decoder erroneously reports compression of heading toward straight ahead. Functional equivalents of macaque areas MST and VIP have been identified in humans, implying a perceptual correlate (illusion) of this perisaccadic decoding error. Indeed, a behavioral experiment in humans shows that perceived heading is perisaccadically compressed toward the direction of gaze. Response properties of primate areas MST and VIP are consistent with being the substrate of the newly described visual illusion.

Suggested Citation

  • Frank Bremmer & Jan Churan & Markus Lappe, 2017. "Heading representations in primates are compressed by saccades," Nature Communications, Nature, vol. 8(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01021-5
    DOI: 10.1038/s41467-017-01021-5
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    Cited by:

    1. Amir Akbarian & Kelsey Clark & Behrad Noudoost & Neda Nategh, 2021. "A sensory memory to preserve visual representations across eye movements," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    2. Wenhao Li & Jianyu Lu & Zikang Zhu & Yong Gu, 2022. "Causal contribution of optic flow signal in Macaque extrastriate visual cortex for roll perception," Nature Communications, Nature, vol. 13(1), pages 1-17, December.

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