From: Motion dazzle and the effects of target patterning on capture success
Paper | Methodology | Conclusions |
---|---|---|
Stevens et al. (2008) [17] | Human `prey capture’ experiments using a computer game. Self paced responses, unpredictable trajectory. | Targets with highly conspicuous stripe/zigzag patterns & uniformly camouflaged (grey) targets similarly difficult to catch and caught less than some other pattern types. |
Zylinski et al. (2009) [20] | Tested whether cuttlefish were more likely to use low or high contrast (`dazzle’) patterns when in motion. | Cuttlefish reduced the amount of high contrast patterns they displayed when in motion. |
Scott-Samuel et al. (2011) [18] | Humans asked to judge which of two patterns appeared to be moving more quickly. Predictable trajectory. | Targets with zigazag/check patterns perceived to be moving more slowly than unpatterned (white Gaussian) targets. No effect for striped patterns. |
Stevens et al. (2011) [21] | Human `prey capture’ experiments using a touch screen computer game. Self paced responses, unpredictable trajectory. | Striped moving targets caught less often than camouflaged (background matching) targets (despite being caught more often when stationary). |
Santer (2013) [34] | Tested response of locust neurons involved in escape responses to motion dazzle stimuli. | High contrast motion dazzle stimuli caused a weaker response in these neurons than uniformly dark stimuli. However, uniformly bright stimuli produce an even weaker response. |
Von Helversen et al. (2013) [19] | Humans asked to attempt to capture moving target using a joystick. Target moving on predictable trajectory and disappeared before capture attempt made. Also made perceptual judgements about which of two patterns appeared to be moving more quickly. | Striped targets no more difficult or easier than uniform black targets to capture. Striped targets perceived as moving faster than uniform black targets. |
How & Zanker (2014)[16] | Modelling potential motion detection mechanism in human vision and the motion signals that zebras would produce in this model. | Stripes on zebras produce more erroneous information about direction of movement than unpatterned horses. |