The behavioural and neurophysiological modulation of microsaccades in monkeys
Systematic modulations of microsaccades have been observed in humans during covert orienting. We show here that monkeys are a suitable model for studying the neurophysiology governing these modulations of microsaccades. Using various cue-target saccade tasks, we observed the effects of visual and au...
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| Format: | Article |
| Language: | English |
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MDPI AG
2009-12-01
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| Series: | Journal of Eye Movement Research |
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| Online Access: | https://bop.unibe.ch/JEMR/article/view/2293 |
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| author | Donald C. Brien Brian D. Corneil Jillian H. Fecteau Andrew H. Bell Douglas P. Munoz |
| author_facet | Donald C. Brien Brian D. Corneil Jillian H. Fecteau Andrew H. Bell Douglas P. Munoz |
| author_sort | Donald C. Brien |
| collection | DOAJ |
| description | Systematic modulations of microsaccades have been observed in humans during covert orienting. We show here that monkeys are a suitable model for studying the neurophysiology governing these modulations of microsaccades. Using various cue-target saccade tasks, we observed the effects of visual and auditory cues on microsaccades in monkeys. As in human studies, following visual cues there was an early bias in cue-congruent microsaccades followed by a later bias in cue-incongruent microsaccades. Following auditory cues there was a cue-incongruent bias in left cues only. In a separate experiment, we observed that brainstem omnipause neurons, which gate all saccades, also paused during microsaccade generation. Thus, we provide evidence that at least part of the same neurocircuitry governs both large saccades and microsaccades. |
| format | Article |
| id | doaj-art-b7ebff5ed8174c4cad94f0160e73fbcf |
| institution | OA Journals |
| issn | 1995-8692 |
| language | English |
| publishDate | 2009-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Eye Movement Research |
| spelling | doaj-art-b7ebff5ed8174c4cad94f0160e73fbcf2025-08-20T02:27:54ZengMDPI AGJournal of Eye Movement Research1995-86922009-12-013210.16910/jemr.3.2.4The behavioural and neurophysiological modulation of microsaccades in monkeysDonald C. Brien0Brian D. Corneil1Jillian H. Fecteau2Andrew H. Bell3Douglas P. Munoz4Queen’s UniversityUniversity of Western OntarioQueen’s UniversityQueen’s UniversityQueen’s UniversitySystematic modulations of microsaccades have been observed in humans during covert orienting. We show here that monkeys are a suitable model for studying the neurophysiology governing these modulations of microsaccades. Using various cue-target saccade tasks, we observed the effects of visual and auditory cues on microsaccades in monkeys. As in human studies, following visual cues there was an early bias in cue-congruent microsaccades followed by a later bias in cue-incongruent microsaccades. Following auditory cues there was a cue-incongruent bias in left cues only. In a separate experiment, we observed that brainstem omnipause neurons, which gate all saccades, also paused during microsaccade generation. Thus, we provide evidence that at least part of the same neurocircuitry governs both large saccades and microsaccades.https://bop.unibe.ch/JEMR/article/view/2293covert orientingcue-target taskomnipause neuronscrossmodal attentionfixational eye movementsoculomotor control |
| spellingShingle | Donald C. Brien Brian D. Corneil Jillian H. Fecteau Andrew H. Bell Douglas P. Munoz The behavioural and neurophysiological modulation of microsaccades in monkeys Journal of Eye Movement Research covert orienting cue-target task omnipause neurons crossmodal attention fixational eye movements oculomotor control |
| title | The behavioural and neurophysiological modulation of microsaccades in monkeys |
| title_full | The behavioural and neurophysiological modulation of microsaccades in monkeys |
| title_fullStr | The behavioural and neurophysiological modulation of microsaccades in monkeys |
| title_full_unstemmed | The behavioural and neurophysiological modulation of microsaccades in monkeys |
| title_short | The behavioural and neurophysiological modulation of microsaccades in monkeys |
| title_sort | behavioural and neurophysiological modulation of microsaccades in monkeys |
| topic | covert orienting cue-target task omnipause neurons crossmodal attention fixational eye movements oculomotor control |
| url | https://bop.unibe.ch/JEMR/article/view/2293 |
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