Sufficiency of longitudinal moment of inertia for haptic cylinder length judgments.

Cabe, Patrick A.

doi:10.1037/a0018395

Cited by 18 publications

(26 citation statements)

References 90 publications

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“…The single participant who showed a negative correlation between actual and estimated IFD evidently perceived the differences present but applied a reversed scaling relationship. Similar outcomes, particularly with novel perceptual tasks, have been reported elsewhere (Cabe, 2010(Cabe, , 2011Cabe & Hofman, 2012;Withagen & Caljouw, 2011), all notably in haptic perceptual studies. In all those instances, participants apparently were sensitive to relevant information but applied an inverse scaling relationship (see also the discussion of similar outcomes in Experiment 1B).…”

Section: Discussionsupporting

confidence: 62%

“…Whether the particular pattern of array properties available in Experiment 1A is unique to the perceptual judgment tested is an open question. Cabe (2010), for example, showed that a subset of physical-mechanical information was sufficient to support length judgments of cylinders rolled by hand, where previous analyses had suggested that additional information was required.…”

Section: Discussionmentioning

confidence: 99%

“…Participants adjusted a vertically oriented rope and pulley system to indicate the axis location, similar to procedures used in Experiment 1B and in other dynamic touch investigations (e.g., Cabe, 2010;Chan & Turvey, 1991;KinsellaShaw & Turvey, 1992). A mark on the rope, visible to participants along the left side of the apparatus frame, could be adjusted to indicate participants' judgments of axis locations.…”

Section: Apparatusmentioning

confidence: 99%

“…2 What measures to use in regressions such as this is something of an issue. Least-squares regression assumes independence of observations, which cannot be assured in repeated measures designs (see Cabe, 2010, Footnote 1, for related commentary). The averaging procedure used here has many precedents in the dynamic touch literature.…”

Section: Informational Variable Regressionsmentioning

confidence: 99%

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Haptic distal spatial perception mediated by strings: Size at a distance and egocentric localization based on ellipse geometry

Cabe

2012

Atten Percept Psychophys

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Participants explored ellipse perimeters defined by fixed-length strings, held taut by their moving finger, with ends attached to two fixed hooks (foci). Participants haptically judged ellipse interfocal distance (IFD; in effect, exocentric separation, or size at a distance) or location of ellipse major axes (i.e., egocentric localization relative to the moving finger). In Experiment 1A, perceivers made reliable and accurate multialternative forced choice IFD judgments. Experiment 1B showed similar reliability for direct estimations but showed greater scaling error. In Experiment 2, perceivers reliably localized ellipse major axes. Both experiments derived from a priori geometrical analysis, consistent with the Gibsonian perceptual research program and previous string-mediated haptic distal spatial studies. Results are discussed with respect to haptic perception as a telemodality and to dynamic touch.

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Section: Discussionsupporting

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Section: Apparatusmentioning

confidence: 99%

Section: Informational Variable Regressionsmentioning

confidence: 99%

See 2 more Smart Citations

Haptic distal spatial perception mediated by strings: Size at a distance and egocentric localization based on ellipse geometry

Cabe

2012

Atten Percept Psychophys

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“…Adopting this conjecture accommodates the data (for elaboration, see [21,22,35]). Whether this spinor-supplemented inertia tensor theory is the right theory and whether any theory of dynamic touching limited to second moment conceptions (that is, ignoring zeroth and first moment conceptions) is sufficient are open issues awaiting more research [30,36,37].…”

Section: Selectively Attending To Wholes (Exteroception) and To Partsmentioning

confidence: 99%

Obtaining information by dynamic (effortful) touching

Turvey

Carello

2011

Phil. Trans. R. Soc. B

102

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Dynamic touching is effortful touching. It entails deformation of muscles and fascia and activation of the embedded mechanoreceptors, as when an object is supported and moved by the body. It is realized as exploratory activities that can vary widely in spatial and temporal extents (a momentary heft, an extended walk). Research has revealed the potential of dynamic touching for obtaining nonvisual information about the body (e.g. limb orientation), attachments to the body (e.g. an object's height and width) and the relation of the body both to attachments (e.g. hand's location on a grasped object) and surrounding surfaces (e.g. places and their distances). Invariants over the exploratory activity (e.g. moments of a wielded object's mass distribution) seem to ground this 'information about'. The conception of a haptic medium as a nested tensegrity structure has been proposed to express the obtained information realized by myofascia deformation, by its invariants and transformations. The tensegrity proposal rationalizes the relative indifference of dynamic touch to the site of mechanical contact (hand, foot, torso or probe) and the overtness of exploratory activity. It also provides a framework for dynamic touching's fractal nature, and the finding that its degree of fractality may matter to its accomplishments.

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Turning perception on its head: cephalic perception of whole and partial length of a wielded object

2016

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Flexibility is a fundamental hallmark of perceptual systems. In particular, there is a great deal of flexibility in the ability to perceive properties of occluded objects by effortful or dynamic touch-hefting, wielding, or otherwise manipulating those objects by muscular effort. Perception of length of an occluded wielded object is comparable when that object is wielded by anatomical components that differ in sensitivity, dexterity, and functionality. Moreover, perception of this property is supported by an analogous sensitivity to inertial properties across such components. We investigated the ability to perceive whole and partial length of an object wielded by hand or by head. Experiment 1 found that perception of length by these anatomical components is qualitatively and quantitatively indistinguishable. Experiment 2 found that perception of length is supported by the same specific sensitivity to inertial properties in each case. Experiment 3 found that perception of whole length and partial length are each supported by specific sensitivities to inertial properties and that this is the case for both hand and by head. The results are discussed in the context of the nature of the stimulation patterns and the organization of the haptic system that are likely to support such flexibility in perception.

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Sufficiency of longitudinal moment of inertia for haptic cylinder length judgments.

Cited by 18 publications

References 90 publications

Haptic distal spatial perception mediated by strings: Size at a distance and egocentric localization based on ellipse geometry

Haptic distal spatial perception mediated by strings: Size at a distance and egocentric localization based on ellipse geometry

Obtaining information by dynamic (effortful) touching

Turning perception on its head: cephalic perception of whole and partial length of a wielded object

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