ArticleJournal of neurophysiology2015
Activity in the human superior colliculus relating to endogenous saccade preparation and execution.
Article in Journal of neurophysiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- An fMRI Investigation of Preparatory Set in the Human Cerebral Cortex and Superior Colliculus for Pro- and Anti-Saccades.PloS one · 2016Trial
- Ab Initio Binocular Formulation of Listing's Law.Journal of eye movement research · 2026Article
- Proprioceptive contribution to oculomotor control in humans.Human brain mapping · 2022Article
- From Gaze Perception to Social Cognition: The Shared-Attention System.Perspectives on psychological science : a journal of the Association for Psychological Science · 2021Review
- Spatially Specific Working Memory Activity in the Human Superior Colliculus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020Article
- Article
- Article
- Autism Pathogenesis: The Superior Colliculus.Frontiers in neuroscience · 2018Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In recent years a small number of studies have applied functional imaging techniques to investigate visual responses in the human superior colliculus (SC), but few have investigated its oculomotor functions. Here, in two experiments, we examined activity associated with endogenous saccade preparation. We used 3-T fMRI to record the hemodynamic activity in the SC while participants were either preparing or executing saccadic eye movements. Our results showed that not only executing a saccade (as previously shown) but also preparing a saccade produced an increase in the SC hemodynamic activity. The saccade-related activity was observed in the contralateral and to a lesser extent the ipsilateral SC. A second experiment further examined the contralateral mapping of saccade-related activity with a larger range of saccade amplitudes. Increased activity was again observed in both the contralateral and ipsilateral SC that was evident for large as well as small saccades. This suggests that the ipsilateral component of the increase in BOLD is not due simply to small-amplitude saccades producing bilateral activity in the foveal fixation zone. These studies provide the first evidence of presaccadic preparatory activity in the human SC and reveal that fMRI can detect activity consistent with that of buildup neurons found in the deeper layers of the SC in studies of nonhuman primates.
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