The pop out of scene-relative object movement against retinal motion due to self-movement

Rushton, Simon K.; Bradshaw, Mark F.; Warren, Paul A.

doi:10.1016/j.cognition.2006.09.004

Cited by 72 publications

(68 citation statements)

References 25 publications

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“…Attention is quickly drawn to motion. Moving objects 'pop out' and are easily observed independent of the number of other stationary objects that are present [14]. Another issue presented by motion, is that when the background contains any spatial pattern, movement of an object causes figure-ground segregation to become trivial [15].…”

Section: Introductionmentioning

confidence: 99%

Camouflage, detection and identification of moving targets

Cuthill²,

et al. 2013

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Nearly all research on camouflage has investigated its effectiveness for concealing stationary objects. However, animals have to move, and patterns that only work when the subject is static will heavily constrain behaviour. We investigated the effects of different camouflages on the three stages of predation-detection, identification and capture-in a computer-based task with humans. An initial experiment tested seven camouflage strategies on static stimuli. In line with previous literature, background-matching and disruptive patterns were found to be most successful. Experiment 2 showed that if stimuli move, an isolated moving object on a stationary background cannot avoid detection or capture regardless of the type of camouflage. Experiment 3 used an identification task and showed that while camouflage is unable to slow detection or capture, camouflaged targets are harder to identify than uncamouflaged targets when similar background objects are present. The specific details of the camouflage patterns have little impact on this effect. If one has to move, camouflage cannot impede detection; but if one is surrounded by similar targets (e.g. other animals in a herd, or moving background distractors), then camouflage can slow identification. Despite previous assumptions, motion does not entirely 'break' camouflage.

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Section: Introductionmentioning

confidence: 99%

Camouflage, detection and identification of moving targets

Cuthill²,

et al. 2013

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“…Humans also appear to utilize disparity information to segment moving objects. When no disparity information is available, humans take longer to respond and are less accurate when discriminating moving objects (Rushton, Bradshaw, & Warren, 2007;Rushton & Warren, 2005a, 2005b. Indeed, MT -cells can have ON-centers that prefer one disparity and OFF-surrounds that prefer another (Bradley & Andersen, 1998;Born & Bradley, 2005).…”

Section: Introductionmentioning

confidence: 99%

Cortical dynamics of navigation and steering in natural scenes: Motion-based object segmentation, heading, and obstacle avoidance

2009

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“…It has been proposed that object motion can be parsed out from the optic flow created by self-motion, thus allowing a moving observer to detect a moving object. Rushton and colleagues [7][8][9] have suggested a flow-parsing mechanism that uses the brain's sensitivity to optic flow to separate retinal motion signals into those components owing to observer movement and those owing to the movement of objects in the scene.…”

Section: Introductionmentioning

confidence: 99%

Acoustic facilitation of object movement detection during self-motion

Calabro¹,

Soto‐Faraco

Vaina

2011

Proc. R. Soc. B.

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In humans, as well as most animal species, perception of object motion is critical to successful interaction with the surrounding environment. Yet, as the observer also moves, the retinal projections of the various motion components add to each other and extracting accurate object motion becomes computationally challenging. Recent psychophysical studies have demonstrated that observers use a flow-parsing mechanism to estimate and subtract self-motion from the optic flow field. We investigated whether concurrent acoustic cues for motion can facilitate visual flow parsing, thereby enhancing the detection of moving objects during simulated self-motion. Participants identified an object (the target) that moved either forward or backward within a visual scene containing nine identical textured objects simulating forward observer translation. We found that spatially co-localized, directionally congruent, moving auditory stimuli enhanced object motion detection. Interestingly, subjects who performed poorly on the visualonly task benefited more from the addition of moving auditory stimuli. When auditory stimuli were not co-localized to the visual target, improvements in detection rates were weak. Taken together, these results suggest that parsing object motion from self-motion-induced optic flow can operate on multisensory object representations.

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The pop out of scene-relative object movement against retinal motion due to self-movement

Cited by 72 publications

References 25 publications

Camouflage, detection and identification of moving targets

Camouflage, detection and identification of moving targets

Cortical dynamics of navigation and steering in natural scenes: Motion-based object segmentation, heading, and obstacle avoidance

Acoustic facilitation of object movement detection during self-motion

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