Express saccades elicited during visual scan in the monkey.

dc.contributor.author

Sommer, MA

dc.coverage.spatial

England

dc.date.accessioned

2016-03-25T03:35:45Z

dc.date.issued

1994-08

dc.description.abstract

Monkeys trained to saccade to visual targets can develop separate "express" and "regular" modes in their distribution of saccadic latencies. The purpose of this study was to determine whether this occurs under more natural viewing conditions, when targets are suddenly presented in a structured visual field during visual scan. It was found that scanning saccades stopped appearing 60 msec after a target's onset, and subsequent saccades, which were directed toward the suddenly appearing target, had a bimodal distribution of latencies. Express saccades were more likely to occur as the target was presented later in a fixation. Regular mode saccades were more likely to occur with longer target durations. Scanning saccades made to stimuli of the structured visual field always had unimodal inter-saccadic interval distributions. All these effects were apparent after only 2-3 days of training. These findings, taken together with recent physiological results, suggest that the visuomotor cells of the superior colliculus mediate latency bimodality.

dc.identifier

http://www.ncbi.nlm.nih.gov/pubmed/7941401

dc.identifier

0042-6989(94)90030-2

dc.identifier.issn

0042-6989

dc.identifier.uri

https://hdl.handle.net/10161/11763

dc.language

eng

dc.publisher

Elsevier BV

dc.relation.ispartof

Vision Res

dc.subject

Animals

dc.subject

Fixation, Ocular

dc.subject

Macaca mulatta

dc.subject

Practice (Psychology)

dc.subject

Saccades

dc.subject

Time Factors

dc.subject

Vision, Ocular

dc.subject

Visual Fields

dc.title

Express saccades elicited during visual scan in the monkey.

dc.type

Journal article

duke.contributor.orcid

Sommer, MA|0000-0001-5061-763X

pubs.author-url

http://www.ncbi.nlm.nih.gov/pubmed/7941401

pubs.begin-page

2023

pubs.end-page

2038

pubs.issue

15

pubs.organisational-group

Basic Science Departments

pubs.organisational-group

Biomedical Engineering

pubs.organisational-group

Center for Cognitive Neuroscience

pubs.organisational-group

Duke

pubs.organisational-group

Duke Institute for Brain Sciences

pubs.organisational-group

Institutes and Provost's Academic Units

pubs.organisational-group

Neurobiology

pubs.organisational-group

Pratt School of Engineering

pubs.organisational-group

School of Medicine

pubs.organisational-group

University Institutes and Centers

pubs.publication-status

Published

pubs.volume

34

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