ArticleFrontiers in integrative neuroscience2016
Decoding Target Distance and Saccade Amplitude from Population Activity in the Macaque Lateral Intraparietal Area (LIP).
Article in Frontiers in integrative neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Organizing space through saccades and fixations between primate posterior parietal cortex and hippocampus.Nature communications · 2024Article
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- Effects of normalized summation in the visual illusion of extent.Attention, perception & psychophysics · 2023Article
- Integration of landmark and saccade target signals in macaque frontal cortex visual responses.Communications biology · 2023Article
- Robust Coding of Eye Position in Posterior Parietal Cortex despite Context-Dependent Tuning.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022Article
- Coding of interceptive saccades in parietal cortex of macaque monkeys.Brain structure & function · 2021Article
- Quantitative examination of an unconventional form of the filled-space illusion.Attention, perception & psychophysics · 2021Article
- Spatiotemporal transformations for gaze control.Physiological reports · 2020Review
- Comparison of the precision of smooth pursuit in humans and head unrestrained monkeys.Journal of eye movement research · 2018Article
- The Influence of a Memory Delay on Spatial Coding in the Superior Colliculus: Is Visual Always Visual and Motor Always Motor?Frontiers in neural circuits · 2018Article
- The superior colliculus and the steering of saccades toward a moving visual target.Journal of neurophysiology · 2017Article
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Authors and funding
4 authors.
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Abstract
Primates perform saccadic eye movements in order to bring the image of an interesting target onto the fovea. Compared to stationary targets, saccades toward moving targets are computationally more demanding since the oculomotor system must use speed and direction information about the target as well as knowledge about its own processing latency to program an adequate, predictive saccade vector. In monkeys, different brain regions have been implicated in the control of voluntary saccades, among them the lateral intraparietal area (LIP). Here we asked, if activity in area LIP reflects the distance between fovea and saccade target, or the amplitude of an upcoming saccade, or both. We recorded single unit activity in area LIP of two macaque monkeys. First, we determined for each neuron its preferred saccade direction. Then, monkeys performed visually guided saccades along the preferred direction toward either stationary or moving targets in pseudo-randomized order. LIP population activity allowed to decode both, the distance between fovea and saccade target as well as the size of an upcoming saccade. Previous work has shown comparable results for saccade direction (Graf and Andersen, 2014a,b). Hence, LIP population activity allows to predict any two-dimensional saccade vector. Functional equivalents of macaque area LIP have been identified in humans. Accordingly, our results provide further support for the concept of activity from area LIP as neural basis for the control of an oculomotor brain-machine interface.
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