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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.
Gestalt Principles of Perception01:21

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Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
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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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Related Experiment Video

Updated: Jun 23, 2026

The (Spatial) Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition
05:15

The (Spatial) Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition

Published on: February 19, 2018

Spatial selection of features within perceived and remembered objects.

Duncan E Astle1, Gaia Scerif, Bo-Cheng Kuo

  • 1University of Oxford Oxford, UK.

Frontiers in Human Neuroscience
|May 13, 2009
PubMed
Summary
This summary is machine-generated.

Visual attention flexibly modulates spatial representations in both perception and memory. However, memory-based attentional selection operates on integrated objects, not individual features, leading to reversed neural effects.

Keywords:
ERPselectrophysiologyspatial attentiontask-set controlvisual short-term memoryworking memory

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Last Updated: Jun 23, 2026

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Published on: February 19, 2018

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Area of Science:

  • Cognitive Neuroscience
  • Visual Perception
  • Memory Research

Background:

  • Attentional biases dynamically shape our visual world representation.
  • These biases are spatially specific and adapt to task demands.

Purpose of the Study:

  • To investigate how spatial attention modulates perceived versus remembered visual information.
  • To determine if memory retains spatial organization and allows for specific attentional modulation.

Main Methods:

  • Comparison of electrophysiological (ERP) responses during visual search in perceptual and memory tasks.
  • Analysis of spatiotopic effects related to task-relevant selection and irrelevant suppression.

Main Results:

  • Spatiotopic ERP effects indicated spatially specific attention in both perception and memory.
  • Opposite polarity of attentional effects observed when searching remembered versus perceived objects.
  • Memory representations appear to integrate features into objects, influencing attentional mechanisms.

Conclusions:

  • Visual short-term memory retains spatial organization, allowing for spatially specific attentional modulation.
  • Attentional selection in memory operates on object-level representations, not individual features.
  • This object-based processing in memory accounts for the reversed neural effects compared to perception.