Humans Ignore Motion and Stereo Cues in Favor of a Fictional Stable World

Glennerster, Andrew; Tcheang, Lili; Gilson, Stuart J.; Fitzgibbon, Andrew; Parker, Andrew

doi:10.1016/j.cub.2006.01.019

Cited by 86 publications

(84 citation statements)

References 17 publications

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“…Hence, the emphasis on precise calibration that we have discussed here and on tests of performance in a variety of tasks under conditions that simulate, in relevant respects, the real world. For example, we have shown in our experiments that walking blind to previously-displayed objects has a similar accuracy to that in a real environment [26]; we have shown that biases in the judgment of distance [25] and object size [6,21] are small, as is the case under real-world conditions.…”

Section: Applicationssupporting

confidence: 56%

“…But two cues that are usually thought of as providing reliable information about the 3D structure of the world, binocular disparity and motion parallax, are still present and should be just as effective at signalling the true size of the room as in a static room. We have investigated this phenomenon in a number of experiments [6,21,24,25]. The important point here is that the isolation and manipulation of binocular disparity and motion parallax cues in this paradigm, independent of other depth cues and while still allowing observers to explore an environment freely, could not be achieved without virtual reality.…”

Section: Applicationsmentioning

confidence: 99%

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High Fidelity Immersive Virtual Reality

Gilson¹,

Glennerster²

2012

Virtual Reality - Human Computer Interaction

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Section: Applicationssupporting

confidence: 56%

Section: Applicationsmentioning

confidence: 99%

High Fidelity Immersive Virtual Reality

Gilson¹,

Glennerster²

2012

Virtual Reality - Human Computer Interaction

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“…This appears to be a common feature of multimodal integration in decision making (36)(37)(38), magnitude estimation (39)(40)(41), and in combining conflicting visual and interoceptive cues to location (35).…”

Section: Discussionmentioning

confidence: 97%

Visual influence on path integration in darkness indicates a multimodal representation of large-scale space

Tcheang

Bülthoff

Burgess

2011

Proc. Natl. Acad. Sci. U.S.A.

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105

107

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Our ability to return to the start of a route recently performed in darkness is thought to reflect path integration of motion-related information. Here we provide evidence that motion-related interoceptive representations (proprioceptive, vestibular, and motor efference copy) combine with visual representations to form a single multimodal representation guiding navigation. We used immersive virtual reality to decouple visual input from motion-related interoception by manipulating the rotation or translation gain of the visual projection. First, participants walked an outbound path with both visual and interoceptive input, and returned to the start in darkness, demonstrating the influences of both visual and interoceptive information in a virtual reality environment. Next, participants adapted to visual rotation gains in the virtual environment, and then performed the path integration task entirely in darkness. Our findings were accurately predicted by a quantitative model in which visual and interoceptive inputs combine into a single multimodal representation guiding navigation, and are incompatible with a model of separate visual and interoceptive influences on action (in which path integration in darkness must rely solely on interoceptive representations). Overall, our findings suggest that a combined multimodal representation guides large-scale navigation, consistent with a role for visual imagery or a cognitive map.H ow do we find our way in darkness? To answer demands that we identify the internal representations used to guide navigation. Some claim that spatial navigation depends on a coherent multimodal mental model or cognitive map (1-5). Others suggest that such representations do not exist and have been incorrectly inferred from the presence of simpler navigational mechanisms (6-9). One such mechanism is path integration, i.e., the ability to return to the start of a recently walked path by using internal motion-related information, such as proprioceptive and vestibular representations and motor efference copy (referred to hereafter as interoception), which are produced during the outbound path (10-18). Although path integration is primarily thought to depend on interoceptive information, visual information can be used intermittently to prevent the accumulation of error, if available (4,10,12,19).We asked whether path integration tasks show evidence of a coherent multimodal representation, or whether they reflect separate processes of interoceptive path integration and intermittent use of vision. Our starting point was studies showing that walking on a treadmill in illuminated conditions can affect one's subsequent perception of the translational and rotational speed of walking in darkness (20-23). These studies indicate that control of walking reflects tight coupling between visual and vestibular representations on the one hand and motoric and proprioceptive representations on the other, such that altering the correspondence between these two sets of representations has long-lasting consequences (22,2...

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“…Glennerster, Tcheang, Gilson, Fitzgibbon, and Parker (2006) immersed participants in a large virtual room using a head-mounted display. As participants walked about, the room expanded or contracted by up to a fourfold magnitude.…”

Section: Research Shows That Even If the Environment Does Shrink Or Ementioning

confidence: 99%

An Embodied Approach to Perception

Proffítt

2013

Perspect Psychol Sci

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When humans perceive the environment, angular units of visual information must be transformed into units appropriate for the specification of such parameters of surface layout as extent, size, and orientation. Our embodied approach to perception proposes that these scaling units derive from the body. For example, hand size is relevant for scaling the size of a strawberry, whereas an extent across a meadow is scaled by the amount of walking required to traverse it. In his article, Firestone (2013, this issue) argued that our approach is wrong; in fact, he argued that it must be wrong. This reply to Firestone's critique is organized into three parts, which address the following questions: (a) What is the fundamental question motivating our approach? (b) How does our approach answer this question? (c) How can we address Firestone's arguments against our approach? A point-by-point critique of Firestone's arguments is presented. Three conclusions are drawn: (a) Most of Firestone's arguments reflect a misunderstanding of our approach, (b) none of his arguments are the fatal flaws in our approach that he believes them to be, and (c) there are good reasons to believe that perception-just like any other biological function-is a phenotypic expression.

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Humans Ignore Motion and Stereo Cues in Favor of a Fictional Stable World

Cited by 86 publications

References 17 publications

High Fidelity Immersive Virtual Reality

High Fidelity Immersive Virtual Reality

Visual influence on path integration in darkness indicates a multimodal representation of large-scale space

An Embodied Approach to Perception

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