TY - JOUR
T1 - Fixational eye movement correction of blink-induced gaze position errors
AU - Costela, Francisco M.
AU - Otero-Millan, Jorge
AU - McCamy, Michael B.
AU - Macknik, Stephen L.
AU - Troncoso, Xoana G.
AU - Jazi, Ali Najafian
AU - Crook, Sharon
AU - Martinez-Conde, Susana
N1 - Publisher Copyright:
© 2014 Costela et al.
PY - 2014/10/21
Y1 - 2014/10/21
N2 - Our eyes move continuously. Even when we attempt to fix our gaze, we produce "fixational" eye movements including microsaccades, drift and tremor. The potential role of microsaccades versus drifts in the control of eye position has been debated for decades and remains in question today. Here we set out to determine the corrective functions of microsaccades and drifts on gaze-position errors due to blinks in non-human primates (Macaca mulatta) and humans. Our results show that blinks contribute to the instability of gaze during fixation, and that microsaccades, but not drifts, correct fixation errors introduced by blinks. These findings provide new insights about eye position control during fixation, and indicate a more general role of microsaccades in fixation correction than thought previously.
AB - Our eyes move continuously. Even when we attempt to fix our gaze, we produce "fixational" eye movements including microsaccades, drift and tremor. The potential role of microsaccades versus drifts in the control of eye position has been debated for decades and remains in question today. Here we set out to determine the corrective functions of microsaccades and drifts on gaze-position errors due to blinks in non-human primates (Macaca mulatta) and humans. Our results show that blinks contribute to the instability of gaze during fixation, and that microsaccades, but not drifts, correct fixation errors introduced by blinks. These findings provide new insights about eye position control during fixation, and indicate a more general role of microsaccades in fixation correction than thought previously.
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U2 - 10.1371/journal.pone.0110889
DO - 10.1371/journal.pone.0110889
M3 - Article
C2 - 25333481
AN - SCOPUS:84908191277
SN - 1932-6203
VL - 9
JO - PloS one
JF - PloS one
IS - 10
M1 - e110889
ER -