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Related Concept Videos

Factors Affecting Perception01:25

Factors Affecting Perception

Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
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Perceptual Constancy01:12

Perceptual Constancy

Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
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Sight distance on vertical curves is critical in roadway design. It ensures drivers can see far enough ahead to identify and respond to hazards effectively. This directly impacts safety, driver comfort, and the overall efficiency of the transportation network.Vertical curves are classified into crest and sag curves based on their geometry. For crest curves, sight distance is determined by the line of sight between a driver's eye and a small object on the road's surface. Design parameters for...
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Actor-Observer Effect

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Eye Tracking During Visually Situated Language Comprehension: Flexibility and Limitations in Uncovering Visual Context Effects
07:36

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Published on: November 30, 2018

Seeing beyond the target: environmental context affects distance perception.

Jessica K Witt1, Jeanine K Stefanucci, Cedar R Riener

  • 1Department of Psychological Sciences, Purdue University, 703 Third Street, West Lafayette, IN 47907, USA. jkwitt@purdue.edu

Perception
|February 21, 2008
PubMed
Summary
This summary is machine-generated.

Environmental context significantly impacts perceived distance, even in full-cue settings. This study reveals that indoor and outdoor environments alter distance perception, challenging prior assumptions of veridicality.

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Area of Science:

  • Cognitive Psychology
  • Visual Perception
  • Environmental Psychology

Background:

  • Ecologically valid environments are often assumed to provide redundant cues for accurate distance perception.
  • Recent studies suggest environmental context influences distance perception even under full-cue viewing conditions.

Purpose of the Study:

  • To investigate the effect of environmental context (indoors vs. outdoors) on perceived distance.
  • To determine if this effect holds for both egocentric and exocentric distance judgments.

Main Methods:

  • Five experiments were conducted using perceptual matching and blindwalking tasks.
  • Perceived distance was measured in indoor and outdoor environments.
  • Viewer-to-target depth variables were controlled to isolate environmental effects.

Main Results:

  • Environmental context significantly affected perceived distance in both indoor and outdoor settings.
  • This effect was observed for both egocentric (self-to-target) and exocentric (target-to-target) distance estimations.
  • Variations in the space beyond the target were identified as the likely cause for altered distance perception.

Conclusions:

  • Perceived distance is not always veridical and is demonstrably influenced by environmental context.
  • The findings challenge the assumption of redundant specification in full-cue environments.
  • Environmental context, particularly the space beyond the target, plays a crucial role in distance perception.