Visual Perception of Location and Distance

Loomis, Jack M.; Silva, José A. Da; Philbeck, John W.; Fukusima, Sérgio Sheiji

doi:10.1111/1467-8721.ep10772783

Cited by 208 publications

(176 citation statements)

References 9 publications

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“…This was especially the case for the participants' hands. Evidence from visual perception indicates that distance judgments rely on different sources of information than location judgments (Abrams & Landgraf, 1990;Loomis, Silva, Philbeck, & Fukusima, 1996). Although this fact might contribute to explaining the presence of larger distortions in experiment 1, it cannot explain why all items are perceived rather equally in the distance memory task but differently in the localization task.…”

Section: Differences Between Localization and Distance Memory Tasksmentioning

confidence: 86%

The role of visual similarity and memory in body model distortions

et al. 2016

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Several studies have shown that the perception of one's own hand size is distorted in proprioceptive localization tasks. It has been suggested that those distortions mirror somatosensory anisotropies. Recent research suggests that non-corporeal items also show some spatial distortions. In order to investigate the psychological processes underlying the localization task, we investigated the influences of visual similarity and memory on distortions observed on corporeal and non-corporeal items. In experiment 1, participants indicated the location of landmarks on: their own hand, a rubber hand (rated as most similar to the real hand), and a rake (rated as least similar to the real hand). Results show no significant differences between rake and rubber hand distortions but both items were significantly less distorted than the hand. Experiment 2 and 3 explored the role of memory in spatial distance judgments of the hand, the rake and the rubber hand. Spatial representations of items measured in experiment 2 and 3 were also distorted but showed the tendency to be smaller than in localization tasks. While memory and visual similarity seem to contribute to explain qualitative similarities in distortions between the hand and non-corporeal items, those factors cannot explain the larger magnitude observed in hand distortions.

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Section: Differences Between Localization and Distance Memory Tasksmentioning

confidence: 86%

The role of visual similarity and memory in body model distortions

et al. 2016

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“…Many previous studies have used a similar paradigm to investigate multi-sensory contributions to distance estimation and path integration in healthy young adults (Bigel & Ellard, 2000;Ellard & Shaughnessy, 2003;Ellard & Wagar, 2008;Lappe & Frenz, 2009;Loomis, DaSilva, Philbeck, & Fukusima, 1996;Redlick, Jenkin, & Harris, 2001;Sun, Campos, Young, Chan, & Ellard, 2004). Studies have shown that on average young adults are quite accurate in indicating location of targets under full sensory conditions (Loomis et al, 1996).…”

Section: The Current Studymentioning

confidence: 99%

“…Studies have shown that on average young adults are quite accurate in indicating location of targets under full sensory conditions (Loomis et al, 1996). Many researchers have also demonstrated 8 that any sensory cue in isolation (i.e., visual, proprioceptive, optic flow) can provide sufficient information to be used to estimate distance accurately (Bigel & Ellard, 2000;Bremmer & Lappe, 1999;Ellard & Shaughnessy, 2003;Harris, Jenkin, & Zikovitz, 2000;Sun et al, 2004).…”

Section: The Current Studymentioning

confidence: 99%

Dopaminergic contributions to distance estimation in Parkinson's disease: A sensory-perceptual deficit?

2013

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“…Accurate visually-directed walking is also critically dependent upon the visual information that speci®es the target's location from the observer's initial viewpoint [35]. Previous work has shown that walking responses are tightly coupled with the perceived distance of the target [44,45].…”

Section: Introductionmentioning

confidence: 99%

“…Aside from these minimal representations, however, path integration may be accomplished in the absence of a speci®ed destination or indeed any other representation of locations in the immediate environment. Other updating processes could also play a role, such as updating the remembered location of a destination or other environmental features [7,35,50].…”

Section: Introductionmentioning

confidence: 99%

Intact spatial updating during locomotion after right posterior parietal lesions

et al. 2000

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One function of the posterior parietal cortex (PPC) is to monitor and integrate sensory signals relating to the current pointing direction of the eyes. We investigated the possibility that the human PPC also contributes to spatial updating during larger-scale behaviors. Two groups of patients with brain injuries either including or excluding the right hemisphere PPC and a group of healthy subjects performed a visually-directed walking task, in which the subject views a target and then attempts to walk to it without vision. All groups walked without vision accurately and precisely to remembered targets up to 6 m away; the patient groups also performed similarly to the healthy controls when indicating egocentric distances using non-motoric responses. These results indicate that the right PPC is not critically involved in monitoring and integrating non-visual self-motion signals, at least along linear paths. In addition, visual perception of egocentric distance in multi-cue environments is immune to injury of a variety of brain areas. 7

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Visual Perception of Location and Distance

Cited by 208 publications

References 9 publications

The role of visual similarity and memory in body model distortions

The role of visual similarity and memory in body model distortions

Dopaminergic contributions to distance estimation in Parkinson's disease: A sensory-perceptual deficit?

Intact spatial updating during locomotion after right posterior parietal lesions

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