When Walls are No Longer Barriers: Perception of Wall Height in Parkour

Taylor, J. Eric T.; Witt, Jessica K.; Sugovic, Mila

doi:10.1068/p6855

Cited by 55 publications

(55 citation statements)

References 13 publications

(12 reference statements)

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“…In recent years, there has been increasing interest in interactions between the perception and action systems because, rather than operating in isolation, the two systems have been shown to be highly intertwined both inside the laboratory (Gallivan et al 2014;Hommel et al 2001) and outside the laboratory (Taylor et al 2011;Witt et al 2012). These studies show that previous action experience with stimuli can influence how those stimuli are later perceived, acted upon, and neurally represented.…”

Section: Introductionmentioning

confidence: 93%

Hand position influences perceptual grouping

et al. 2015

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Over the past decade, evidence has accumulated that performance in attention, perception, and memory-related tasks are influenced by the distance between the hands and the stimuli (i.e., placing the observer's hands near or far from the stimuli). To account for existing findings, it has recently been proposed that processing of stimuli near the hands is dominated by the magnocellular visual pathway. The present study tests an implication of this hypothesis, whether perceptual grouping is reduced in hands-proximal space. Consistent with previous work on the object-based capture of attention, a benefit for the visual object in the hands-distal condition was observed in the present study. Interestingly, the object-based benefit did not emerge in the hands-proximal condition, suggesting perceptual grouping is impaired near the hands. This change in perceptual grouping processes provides further support for the hypothesis that visual processing near the hands is subject to increased magnocellular processing.

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Section: Introductionmentioning

confidence: 93%

Hand position influences perceptual grouping

et al. 2015

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“…Hot-hitting batters report bigger softballs (Gray, in press;, successful field-goal kickers report wider football uprights (Witt & Dorsch, 2009), shot-making tennis players report lower nets (Witt & Sugovic, 2010), accurate dart-throwers report larger targets (Cañal-Bruland, Pijpers, & Oudejans, 2010;Wesp, Cichello, Gracia, & Davis, 2004), and golfers who have had a favorable day on the green report larger golf holes (Witt, Linkenauger, Bakdash, & Proffitt, 2008). Swimmers judge underwater targets to be closer when wearing speedy flippers than when barefoot (Witt, Schuck, & Taylor, 2011), and individuals trained in the urban acrobatic sport parkour give shorter estimates of a wall's height than do untrained individuals (Taylor, Witt, & Sugovic, 2011).…”

Section: The Paternalistic Vision Hypothesismentioning

confidence: 99%

“…To illustrate, return to Figure 1, but now suppose the depicted observers wish to jump over (or toward) the objects before them (Lessard et al, 2009;Taylor et al, 2011). Linkenauger, Witt, et al (2011) explicitly consider such a scenario: For a trekker approaching a crevasse, "the width of the crevasse would be perceived as a proportion of the maximum extent over which one can jump" (p. 1433).…”

Section: Argument 3: Ability Scaling Is Informationally Ungroundedmentioning

confidence: 99%

How “Paternalistic” Is Spatial Perception? Why Wearing a Heavy Backpack Doesn’t—and Couldn’t—Make Hills Look Steeper

Firestone

2013

Perspect Psychol Sci

139

149

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A chief goal of perception is to help us navigate our environment. According to a rich and ambitious theory of spatial perception, the visual system achieves this goal not by aiming to accurately depict the external world, but instead by actively distorting the environment’s perceived spatial layout to bias action selection toward favorable outcomes. Scores of experimental results have supported this view—including, famously, a report that wearing a heavy backpack makes hills look steeper. This perspective portrays the visual system as unapologetically paternalistic: Backpacks make hills harder to climb, so vision steepens them to discourage ascent. The “paternalistic” theory of spatial perception has, understandably, attracted controversy; if true, it would radically revise our understanding of how and why we see. Here, this view is subjected to a kind and degree of scrutiny it has yet to face. After characterizing and motivating the case for paternalistic vision, I expose several unexplored defects in its theoretical framework, arguing that extant accounts of how and why spatial perception is ability-sensitive are deeply problematic and that perceptual phenomenology belies the view’s claims. The paternalistic account of spatial perception not only isn’t true—it couldn’t be true, even if its empirical findings were accepted at face value.

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“…Archers who are shooting better than others see the target as bigger (Lee, Lee, Carello, & Turvey, 2012). Athletes trained in parkour see walls as being shorter than do untrained novices (Taylor, Witt, & Sugovic, 2011). Weighted objects are perceived to be lighter when the perceiver anticipates carrying the object with the help of a capable partner, relative to when the object must be carried alone or with an unable partner (Doerrfeld, Sebanz, & Shiffrar, 2012).…”

mentioning

confidence: 99%

Action-specific perception of speed is independent of attention

Witt

Sugovic

Dodd

2016

Atten Percept Psychophys

Self Cite

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According to the action-specific account of perception, a perceiver's ability to act influences how the environment is perceived. For example, in a computer-based task, participants perceive fish as moving faster when they use a smaller net, and are thus less effective at catching the fish (Witt & Sugovic, 2013a). Here, we examined the degree to which attention may influence perceptual judgments by requiring participants to engage in a secondary task that directed their attention either toward (Exp. 1) or away from (Exp. 2) the to-be-caught fish. Though perceived fish speed was influenced by participants' catching performance-replicating previous results-attentional allocation did not impact this relationship between catching performance and perceived fish speed. The present results suggest that action directly influences spatial perception, rather than exerting indirect effects via attentional processes.

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When Walls are No Longer Barriers: Perception of Wall Height in Parkour

Cited by 55 publications

References 13 publications

Hand position influences perceptual grouping

Hand position influences perceptual grouping

How “Paternalistic” Is Spatial Perception? Why Wearing a Heavy Backpack Doesn’t—and Couldn’t—Make Hills Look Steeper

Action-specific perception of speed is independent of attention

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