TY - GEN
T1 - The Trans-Saccadic Extrafoveal Preview Effect is Modulated by Object Visibility
AU - Liu, Xiaoyi
AU - Huber-Huber, Christoph
AU - Melcher, David
N1 - Publisher Copyright:
© 2022 ACM.
PY - 2022/6/8
Y1 - 2022/6/8
N2 - We used a gaze-contingent eye-tracking setup to investigate how peripheral vision before the saccade affects post-saccadic foveal processing. Studies have revealed robust changes in foveal processing when the target is available in peripheral vision (the extrafoveal preview effect). To further characterize the role of peripheral vision, we adopted a paradigm where an upright/inverted extrafoveal face stimulus was shown and changed orientation (invalid preview) on 50% of trials during the saccade. Invalid preview significantly reduced post-saccadic discrimination performance compared to valid preview (aka preview effect). In addition, the preview face varied in eccentricity and added noise which affected its visibility. Face visibility was operationalized by a lateralized face identification task, run in a separate session. A mixed model analysis suggests that visibility modulated the preview effect. Overall, these findings constrain theories of how preview effects might influence perception under natural viewing conditions.
AB - We used a gaze-contingent eye-tracking setup to investigate how peripheral vision before the saccade affects post-saccadic foveal processing. Studies have revealed robust changes in foveal processing when the target is available in peripheral vision (the extrafoveal preview effect). To further characterize the role of peripheral vision, we adopted a paradigm where an upright/inverted extrafoveal face stimulus was shown and changed orientation (invalid preview) on 50% of trials during the saccade. Invalid preview significantly reduced post-saccadic discrimination performance compared to valid preview (aka preview effect). In addition, the preview face varied in eccentricity and added noise which affected its visibility. Face visibility was operationalized by a lateralized face identification task, run in a separate session. A mixed model analysis suggests that visibility modulated the preview effect. Overall, these findings constrain theories of how preview effects might influence perception under natural viewing conditions.
KW - Extrafoveal preview effect
KW - Face perception
KW - Gaze-contingent
KW - Saccadic eye movements
UR - http://www.scopus.com/inward/record.url?scp=85132438370&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85132438370&partnerID=8YFLogxK
U2 - 10.1145/3517031.3529622
DO - 10.1145/3517031.3529622
M3 - Conference contribution
AN - SCOPUS:85132438370
T3 - Eye Tracking Research and Applications Symposium (ETRA)
BT - Proceedings - ETRA 2022
A2 - Spencer, Stephen N.
PB - Association for Computing Machinery
T2 - 2022 ACM Symposium on Eye Tracking Research and Applications, ETRA 2022
Y2 - 8 June 2022 through 11 June 2022
ER -