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Related Concept Videos

Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
Non-Verbal Cues01:29

Non-Verbal Cues

Non-verbal communication extends beyond gestures and facial expressions to include vocal elements known as paralanguage. Paralanguage consists of non-verbal vocal cues such as pitch, loudness, speech rate, pauses, and non-verbal vocalizations like laughter, sighs, and moans. These elements not only accompany speech but also provide critical emotional and contextual information.The Role of Paralanguage in CommunicationParalanguage adds depth to spoken language by conveying emotions and...
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.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
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Anatomy of the Eyeball

The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle layer, the vascular tunic,...
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Gestalt Principles of Perception

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Hindsight Biases

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Related Experiment Video

Updated: Jun 24, 2026

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss
07:12

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss

Published on: April 11, 2025

The role of peripheral vision in implicit contextual cuing.

Marieke van Asselen1, Miguel Castelo-Branco

  • 1IBILI-Faculdade de Medicina, University of Coimbra, Coimbra, Portugal. masselen@ibili.uc.pt

Attention, Perception & Psychophysics
|March 24, 2009
PubMed
Summary

Implicit contextual cuing, which guides visual search, relies on peripheral vision to create context snapshots. This study confirms peripheral vision

Area of Science:

  • Cognitive psychology
  • Neuroscience
  • Visual perception

Background:

  • Implicit contextual cuing aids visual search by linking environmental context to targets.
  • Recent theories propose context snapshots, requiring peripheral vision, underlie this ability.

Purpose of the Study:

  • To investigate if peripheral vision supports implicit contextual cuing.
  • To determine if peripheral context information is stored long-term.

Main Methods:

  • Covert visual search task.
  • Participants identified target orientation while fixating a central cross.
  • Stimulus configurations were either repeated or novel.

Main Results:

  • Response times were significantly faster for repeated stimulus configurations.

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  • This facilitation effect persisted even after 10 days.

    • Conclusions:

    • Peripheral vision is sufficient for creating and storing snapshots of local context.
    • This demonstrates the role of peripheral vision in long-term implicit contextual learning and attention guidance.