Systematic diagonal and vertical errors in antisaccades and memory-guided saccades
Studies of memory-guided saccades in monkeys show an upward bias, while studies of antisaccades in humans show a diagonal effect, a deviation of endpoints toward the 45° diagonal. To determine if these two different spatial biases are specific to different types of saccades, we studied prosaccades,...
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| Format: | Article |
| Language: | English |
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MDPI AG
2010-09-01
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| Series: | Journal of Eye Movement Research |
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| Online Access: | https://bop.unibe.ch/JEMR/article/view/2299 |
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| author | Mathias Abegg Hyung Lee Jason J. S. Barton |
| author_facet | Mathias Abegg Hyung Lee Jason J. S. Barton |
| author_sort | Mathias Abegg |
| collection | DOAJ |
| description | Studies of memory-guided saccades in monkeys show an upward bias, while studies of antisaccades in humans show a diagonal effect, a deviation of endpoints toward the 45° diagonal. To determine if these two different spatial biases are specific to different types of saccades, we studied prosaccades, antisaccades and memory-guided saccades in humans. The diagonal effect occurred not with prosaccades but with antisaccades and memory-guided saccades with long intervals, consistent with hypotheses that it originates in computations of goal location under conditions of uncertainty. There was a small upward bias for memory-guided saccades but not prosaccades or antisaccades. Thus this bias is not a general effect of target uncertainty but a property specific to memory-guided saccades. |
| format | Article |
| id | doaj-art-9aa0da5ce28c41979d419d59c274cc7c |
| institution | DOAJ |
| issn | 1995-8692 |
| language | English |
| publishDate | 2010-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Eye Movement Research |
| spelling | doaj-art-9aa0da5ce28c41979d419d59c274cc7c2025-08-20T03:19:39ZengMDPI AGJournal of Eye Movement Research1995-86922010-09-013310.16910/jemr.3.3.5Systematic diagonal and vertical errors in antisaccades and memory-guided saccadesMathias Abegg0Hyung Lee1Jason J. S. Barton2University of BernKeimyung UniversityUniversity of British ColumbiaStudies of memory-guided saccades in monkeys show an upward bias, while studies of antisaccades in humans show a diagonal effect, a deviation of endpoints toward the 45° diagonal. To determine if these two different spatial biases are specific to different types of saccades, we studied prosaccades, antisaccades and memory-guided saccades in humans. The diagonal effect occurred not with prosaccades but with antisaccades and memory-guided saccades with long intervals, consistent with hypotheses that it originates in computations of goal location under conditions of uncertainty. There was a small upward bias for memory-guided saccades but not prosaccades or antisaccades. Thus this bias is not a general effect of target uncertainty but a property specific to memory-guided saccades.https://bop.unibe.ch/JEMR/article/view/2299saccadebiasaccuracy |
| spellingShingle | Mathias Abegg Hyung Lee Jason J. S. Barton Systematic diagonal and vertical errors in antisaccades and memory-guided saccades Journal of Eye Movement Research saccade bias accuracy |
| title | Systematic diagonal and vertical errors in antisaccades and memory-guided saccades |
| title_full | Systematic diagonal and vertical errors in antisaccades and memory-guided saccades |
| title_fullStr | Systematic diagonal and vertical errors in antisaccades and memory-guided saccades |
| title_full_unstemmed | Systematic diagonal and vertical errors in antisaccades and memory-guided saccades |
| title_short | Systematic diagonal and vertical errors in antisaccades and memory-guided saccades |
| title_sort | systematic diagonal and vertical errors in antisaccades and memory guided saccades |
| topic | saccade bias accuracy |
| url | https://bop.unibe.ch/JEMR/article/view/2299 |
| work_keys_str_mv | AT mathiasabegg systematicdiagonalandverticalerrorsinantisaccadesandmemoryguidedsaccades AT hyunglee systematicdiagonalandverticalerrorsinantisaccadesandmemoryguidedsaccades AT jasonjsbarton systematicdiagonalandverticalerrorsinantisaccadesandmemoryguidedsaccades |