Controlled interaction: Strategies for using virtual reality to study perception

Durgin, Frank H.; Li, Zhi

doi:10.3758/brm.42.2.414

Cited by 22 publications

(15 citation statements)

References 26 publications

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“…Because each of these tasks involves ratios and angles rather than absolute distance estimation, the results are consistent with the idea that the compression of perceived distance in virtual reality may nonetheless preserve similarity relationships (see Messing & Durgin, 2005, Durgin & Li, 2010). Elsewhere we have shown that the perceived slants of near surfaces are fairly similar in virtual and real environments (Durgin, Li, & Hajnal, 2010; Durgin and Li, submitted).…”

Section: Discussionsupporting

confidence: 78%

“…Although there is always concern about generalizability from virtual environments (Durgin & Li, 2010), we will show that the present results provide an excellent model of existing slant and aspect ratio data collected in the real world (i.e. slant data in Proffitt et al, 1995, and aspect ratio data in Kudoh, 2005, and in Loomis & Philbeck, 1999), while providing a more complete picture of the relevant parameter space.…”

mentioning

confidence: 66%

“…The large-scale surfaces were simulated in an immersive virtual environment presented in an nVisor head-mounted display (HMD) with a nominal resolution of 1280 × 1024 and 60 Hz refresh rate. Display images were pincushion-corrected, using a shader in a professional rendering system (Virtools 4.1) to pre-distort the image, and calibrated (Durgin & Li, 2010; see also Kuhl, Thompson, & Creem-Regehr, 2009). Each participant’s head position and orientation were monitored by an optical tracking system (Vicon) and used to update the display of the HMD with a lag of less than 100 msec, with images appropriate to the location of each eye view based on measured interpupillary distance.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Perceived slant of binocularly viewed large-scale surfaces: A common model from explicit and implicit measures

Li¹,

Durgin²

2010

Journal of Vision

125

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It is known that the perceived slants of large distal surfaces, such as hills, are exaggerated and that the exaggeration increases with distance. In a series of two experiments, we parametrically investigated the effect of viewing distance and slant on perceived slant using a high-fidelity virtual environment. An explicit numerical estimation method and an implicit aspect ratio approach were separately used to assess the perceived optical slant of simulated large-scale surfaces with different slants and viewing distances while gaze direction was fixed. The results showed that perceived optical slant increased logarithmically with viewing distance and the increase was proportionally greater for shallow slants. At each viewing distance, perceived optical slant could be approximately fit by linear functions of actual slant that were parallel across distances. These linear functions demonstrated a fairly constant gain of about 1.5 and an intercept that increased logarithmically with distance. A comprehensive three-parameter model based on the present data provides a good fit to a number of previous empirical observations measured in real environments.

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Section: Discussionsupporting

confidence: 78%

mentioning

confidence: 66%

Section: Methodsmentioning

confidence: 99%

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Perceived slant of binocularly viewed large-scale surfaces: A common model from explicit and implicit measures

Li¹,

Durgin²

2010

Journal of Vision

125

View full text Add to dashboard Cite

show abstract

“…The display was pincushion-corrected and calibrated (Kuhl, Thompson & Creem-Regehr, 2009; Durgin & Li, 2010), and updated at 60 Hz in stereo using professional rendering software (Virtools 4.1) in combination with an optical tracking system (Vicon) to monitor head position and orientation, which was corrected to each eye (at 60 Hz) based on measured interpupillary distance with a lag of less than 100 msec.…”

Section: Methodsmentioning

confidence: 99%

Perceptual scale expansion: an efficient angular coding strategy for locomotor space

Durgin

2011

Atten Percept Psychophys

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163

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Whereas most sensory information is coded in a logarithmic scale, linear expansion of a limited range may provide a more efficient coding for angular variables important to precise motor control. In four experiments it is shown that the perceived declination of gaze, like the perceived orientation of surfaces is coded on a distorted scale. The distortion seems to arise from a nearly linear expansion of the angular range close to horizontal/straight ahead and is evident in explicit verbal and non-verbal measures (Experiments 1 and 2) and in implicit measures of perceived gaze direction (Experiment 4). The theory is advanced that this scale expansion (by a factor of about 1.5) may serve a functional goal of coding efficiency for angular perceptual variables. The scale expansion of perceived gaze declination is accompanied by a corresponding expansion of perceived optical slants in the same range (Experiments 3 and 4). These dual distortions can account for the explicit misperception of distance typically obtained by direct report and exocentric matching while allowing accurate spatial action to be understood as the result of calibration.

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“…In Table 2, we report the mean intercepts and gains for linear fits to the data of each of 20 participants. We also show mean parameters for power-function fits to individual participants (Durgin & Li, 2010). For the free-hand measure, neither the mean gain (slopes of linear models) nor the mean power function exponent (slopes in log–log space) differed reliably from 1, t (19) = 1.27, p = .2205; t (19) = 0.15, p = .8815.…”

Section: Comparison Of Free-hand With Palm-board and Verbal Measuresmentioning

confidence: 99%

Design, data, and theory regarding a digital hand inclinometer: a portable device for studying slant perception

Durgin

2011

Behav Res

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Palm boards are often used as a nonverbal measure in human slant perception studies. It was recently found that palm boards are biased and relatively insensitive measures, and that an unrestricted hand gesture provides a more sensitive response (Durgin, Hajnal, Li, Tonge, & Stigliani, Acta Psychologica, 134, 182-197, 2010a). In this article, we describe an original design for a portable lightweight digital device for measuring hand orientation. This device is microcontroller-based and uses a micro inclinometer chip as its inclination sensor. The parts are fairly inexpensive. This device, used to measure hand orientation, provides a sensitive nonverbal method for studying slant perception, which can be used in both indoor and outdoor environments. We present data comparing the use of a free hand to palm-board and verbal measures for surfaces within reach and explain how to interpret free-hand measures for outdoor hills.

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Controlled interaction: Strategies for using virtual reality to study perception

Cited by 22 publications

References 26 publications

Perceived slant of binocularly viewed large-scale surfaces: A common model from explicit and implicit measures

Perceived slant of binocularly viewed large-scale surfaces: A common model from explicit and implicit measures

Perceptual scale expansion: an efficient angular coding strategy for locomotor space

Design, data, and theory regarding a digital hand inclinometer: a portable device for studying slant perception

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