Eye Movement Responses to Convergence Stimuli

Relative contributions to vergence eye movements of two binocular cues for motion-in-depth

“…We did not systematically analyse the latencies of our vergence traces but based on visual inspection they were considerably longer (≈250–300 ms for FULL cue and CD stimuli) and closer to latencies found in a range of other previous studies investigating vergence eye movements with different types of stimuli (e.g. 2,46–49 ). For IOVD stimuli, vergence movements often started as soon as the fixation marker was removed.…”

Relative contributions to vergence eye movements of two binocular cues for motion-in-depth

“…We did not systematically analyse the latencies of our vergence traces but based on visual inspection they were considerably longer (≈250–300 ms for FULL cue and CD stimuli) and closer to latencies found in a range of other previous studies investigating vergence eye movements with different types of stimuli (e.g. 2,46–49 ). For IOVD stimuli, vergence movements often started as soon as the fixation marker was removed.…”

Changes in vergence mediated by saccades.

“…Many of these singlecase measurements indicate appreciable deviations between geometric expectations and total measured vergence change at steady state, such as have been noted by previous workers (e.g. Westheimer & Mitchell, 1956): discrepancies which sometimes greatly exceeded measurement error.…”

Disjunctive eye movements

“…This particular subject shows oscillations for movements in one direction not 344 C. RASHBASS AND G. WESTHEIMER only around the final position but also during the movement. We shall see similar oscillations in another subject when ramp stimuli are illustrated below. Some details of the time course of the responses shown here differ from those given by Westheimer & Mitchell (1956) Figure 8 shows that there is a response. Ramp functions When a target vergence is introduced with a constant rate of change ( Fig.…”

Relative contributions to vergence eye movements of two binocular cues for motion-in-depth

“…We did not systematically analyse the latencies of our vergence traces but based on visual inspection they were considerably longer (≈250–300 ms for FULL cue and CD stimuli) and closer to latencies found in a range of other previous studies investigating vergence eye movements with different types of stimuli (e.g. 2,46–49 ). For IOVD stimuli, vergence movements often started as soon as the fixation marker was removed.…”

Changes in vergence mediated by saccades.

“…Many of these singlecase measurements indicate appreciable deviations between geometric expectations and total measured vergence change at steady state, such as have been noted by previous workers (e.g. Westheimer & Mitchell, 1956): discrepancies which sometimes greatly exceeded measurement error.…”

Disjunctive eye movements

“…This particular subject shows oscillations for movements in one direction not 344 C. RASHBASS AND G. WESTHEIMER only around the final position but also during the movement. We shall see similar oscillations in another subject when ramp stimuli are illustrated below. Some details of the time course of the responses shown here differ from those given by Westheimer & Mitchell (1956) Figure 8 shows that there is a response. Ramp functions When a target vergence is introduced with a constant rate of change ( Fig.…”

Relative contributions to vergence eye movements of two binocular cues for motion-in-depth

“…We did not systematically analyse the latencies of our vergence traces but based on visual inspection they were considerably longer (≈250–300 ms for FULL cue and CD stimuli) and closer to latencies found in a range of other previous studies investigating vergence eye movements with different types of stimuli (e.g. 2,46–49 ). For IOVD stimuli, vergence movements often started as soon as the fixation marker was removed.…”

Changes in vergence mediated by saccades.

“…Many of these singlecase measurements indicate appreciable deviations between geometric expectations and total measured vergence change at steady state, such as have been noted by previous workers (e.g. Westheimer & Mitchell, 1956): discrepancies which sometimes greatly exceeded measurement error.…”

Disjunctive eye movements

“…This particular subject shows oscillations for movements in one direction not 344 C. RASHBASS AND G. WESTHEIMER only around the final position but also during the movement. We shall see similar oscillations in another subject when ramp stimuli are illustrated below. Some details of the time course of the responses shown here differ from those given by Westheimer & Mitchell (1956) Figure 8 shows that there is a response. Ramp functions When a target vergence is introduced with a constant rate of change ( Fig.…”