TY - GEN
T1 - The role of eye movement signals in dorsal and ventral processing
AU - Black, John A.
AU - Braiman, Stuart B.
AU - Narayanan, Chatapuramkrishnan
AU - Panchanathan, Sethuraman
PY - 2007
Y1 - 2007
N2 - As human eyes scan an image, each fixation captures high resolution visual information from a small region of that image. The resulting intermittent visual stream is sent along two visual pathways to the visual centers of the brain concurrently with eye movement information. The ventral stream (the what pathway) is associated with object recognition, while the dorsal stream (the where pathway) is associated with spatial perception. This research employs three experiments to compare the relative importance of eye movement information within these two visual pathways. During Experiment 1 participants visually examine (a) outdoor scenery images, and (b) object images, while their fixation sequences are captured. These fixation sequences are then used to generate sequences of foveated of images, in the form of videos. In Experiments 2 and 3 these videos are viewed by another set of participants. In doing so, participants in Experiment 2 and 3 experience the same sequence of foveal stimuli as those in Experiment 1, but might or might not experience the corresponding eye movement signals. The subsequent ability of the Experiment 2 and 3 participants to (a) recognize objects, and (b) locate landmarks in outdoor scenes provides information about the importance of eye movement information in dorsal and ventral processing.
AB - As human eyes scan an image, each fixation captures high resolution visual information from a small region of that image. The resulting intermittent visual stream is sent along two visual pathways to the visual centers of the brain concurrently with eye movement information. The ventral stream (the what pathway) is associated with object recognition, while the dorsal stream (the where pathway) is associated with spatial perception. This research employs three experiments to compare the relative importance of eye movement information within these two visual pathways. During Experiment 1 participants visually examine (a) outdoor scenery images, and (b) object images, while their fixation sequences are captured. These fixation sequences are then used to generate sequences of foveated of images, in the form of videos. In Experiments 2 and 3 these videos are viewed by another set of participants. In doing so, participants in Experiment 2 and 3 experience the same sequence of foveal stimuli as those in Experiment 1, but might or might not experience the corresponding eye movement signals. The subsequent ability of the Experiment 2 and 3 participants to (a) recognize objects, and (b) locate landmarks in outdoor scenes provides information about the importance of eye movement information in dorsal and ventral processing.
KW - Eye tracking
KW - Fixation
KW - Object recognition
KW - Scan path
KW - Scene analysis
UR - http://www.scopus.com/inward/record.url?scp=34548211286&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34548211286&partnerID=8YFLogxK
U2 - 10.1117/12.707578
DO - 10.1117/12.707578
M3 - Conference contribution
AN - SCOPUS:34548211286
SN - 0819466050
SN - 9780819466051
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Proceedings of SPIE-IS and T Electronic Imaging - Human Vision and Electronic Imaging XII
T2 - Human Vision and Electronic Imaging XII
Y2 - 29 January 2007 through 1 February 2007
ER -