Rapid stimulus-driven modulation of slow ocular position drifts
- Werner Reichardt Centre for Integrative Neuroscience, Tuebingen University, Germany
- Hertie Institute for Clinical Brain Research, Tuebingen University, Germany
- Graduate School of Neural and Behavioural Sciences, International Max-Planck Research School, Tuebingen University, Germany
Figures
Figure 1 with 2 supplements
Short-latency, stimulus-driven ocular position drift response.
(A) Vertical eye position (plus 95% confidence intervals) after split view stimulus onset. Compared to the no-stimulus condition (gray), the eye drifted upwards with short latency after stimulus …
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Figure 1—source data 1
Excel table with the source data for this figure.
- https://cdn.elifesciences.org/articles/57595/elife-57595-fig1-data1-v2.xlsx
Figure 1—figure supplement 1
Short-latency, stimulus-driven ocular position drift response in two additional monkeys besides the monkey shown in Figure 1.
This figure is formatted identically to Figure 1. It shows very similar results from two additional monkeys, M and N. (A–F) Monkey M results. (G–L) Monkey N results. Error bars are defined in all …
Figure 1—figure supplement 2
The ocular position drift response occurred earlier than pupil diameter constriction occurring after stimulus onset.
We measured pupil diameter in monkey A when a stimulus transient (high-contrast, full-screen vertical grating) was presented. The blue curve shows the ocular position drift response, replicating the …
Figure 2 with 4 supplements
The drift response is a binocular eye movement.
(A) Vertical eye position from monkey M during simultaneous measurements of the right and left eyes. The upward drift response (for a brief ~8 ms black flash covering the whole display) occurred …
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Figure 2—source data 1
Excel table with the source data for this figure.
- https://cdn.elifesciences.org/articles/57595/elife-57595-fig2-data1-v2.xlsx
Figure 2—figure supplement 1
The drift response is independent of head movements.
Figure 2—figure supplement 2
Small localized stimulus onsets had minimal effects on ocular position drifts when compared to larger flashes.
(A, B) Horizontal (top row in each panel) and vertical (bottom row in each panel) eye position in each of two monkeys (A and M) under different conditions. The left column in each panel shows data …
Figure 2—figure supplement 3
Independence of the ocular position drift response from starting eye position.
For each trial of the black fixation flash paradigm (full-screen flashes), we measured average eye position in the final 50 ms before stimulus onset. Across trials within a given session, this …
Figure 2—figure supplement 4
The drift response was not systematically related to the direction of the first microsaccade to occur after it.
We searched for the first microsaccade to occur after our standard designated saccade-free fixation interval of −100 ms to 200 ms relative to full-screen flash onset. Across trials, we then plotted …
Figure 3
Stimulus tuning of the ocular position drift response.
(A) We replaced the full-screen flash of Figure 2 with a vertical grating of different spatial frequencies (Methods). The upward velocity pulse depended on spatial frequency; it occurred earlier, …
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Figure 3—source data 1
Excel table with the source data for this figure.
- https://cdn.elifesciences.org/articles/57595/elife-57595-fig3-data1-v2.xlsx
Figure 4 with 1 supplement
The drift response starts when saccades are inhibited.
(A–C) Our monkeys exhibited known saccadic inhibition (Buonocore et al., 2017a; Buonocore and McIntosh, 2008; Edelman and Xu, 2009; Hafed and Ignashchenkova, 2013; Hafed et al., 2011; Reingold and …
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Figure 4—source data 1
Excel table with the source data for this figure.
- https://cdn.elifesciences.org/articles/57595/elife-57595-fig4-data1-v2.xlsx
Figure 4—figure supplement 1
The ocular position drift response occurred during saccadic inhibition, and it also occurred even with nearby saccades.
This figure is formatted identically to Figure 4. It shows similar results, but this time from the black fixation flash paradigm using full-screen flashes (the white fixation flash paradigm produced …
