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Related Concept Videos

Perception01:28

Perception

Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
Gestalt Principles of Perception01:21

Gestalt Principles of Perception

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...
Parallel Processing01:20

Parallel Processing

The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
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.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
Sensory Perception: Organization of the Somatosensory System01:11

Sensory Perception: Organization of the Somatosensory System

The somatosensory system is the central and peripheral nervous system component that senses and processes touch, pressure, pain, temperature, and body position or proprioception. The process of sensation takes place at three levels:
The receptor level:
The receptor level is the first stage of sensation. It involves the detection of a stimulus by specialized sensory receptors. The stimulus must arrive within the receptor's receptive field. Next, the receptor converts the energy of the stimulus...
Concepts and Prototypes01:24

Concepts and Prototypes

The human nervous system handles vast amounts of information by translating sensory stimuli into neural impulses, which the brain processes, creating thoughts expressed through language or stored as memories. The brain also synthesizes information from emotions and memories, which significantly influence thoughts and behaviors. This intricate process creates a comprehensive mental picture.
The brain organizes this information using concepts, which are mental categories grouping linguistic data,...

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Related Experiment Video

Updated: May 25, 2026

Creating Objects and Object Categories for Studying Perception and Perceptual Learning
14:38

Creating Objects and Object Categories for Studying Perception and Perceptual Learning

Published on: November 2, 2012

From perception to conception: how meaningful objects are processed over time.

Alex Clarke1, Kirsten I Taylor, Barry Devereux

  • 1Centre for Speech, Language and the Brain, Department of Experimental Psychology, University of Cambridge, Cambridge CB2 3EB, UK. alex@csl.psychol.cam.ac.uk

Cerebral Cortex (New York, N.Y. : 1991)
|January 26, 2012
PubMed
Summary
This summary is machine-generated.

Visual object recognition involves dynamic neural processing. This study reveals how shared features rapidly inform category perception, followed by distinctive features enabling specific object identification within the brain.

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Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions
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Related Experiment Videos

Last Updated: May 25, 2026

Creating Objects and Object Categories for Studying Perception and Perceptual Learning
14:38

Creating Objects and Object Categories for Studying Perception and Perceptual Learning

Published on: November 2, 2012

Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions
06:54

Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions

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Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization
05:35

Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization

Published on: April 19, 2017

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Computational Linguistics

Background:

  • Understanding how the brain recognizes visual objects is a fundamental question in neuroscience.
  • Current models suggest object recognition involves transforming sensory input into meaningful representations.
  • The precise neural mechanisms and timing of how visual information evokes object meaning remain unclear.

Purpose of the Study:

  • To investigate the spatiotemporal dynamics of neural activity underlying visual object recognition.
  • To model how perceptual and conceptual variables interact during object identification.
  • To differentiate the roles of shared versus distinctive semantic features in early and late visual processing.

Main Methods:

  • Applied a regression approach to magnetoencephalography (MEG) data.
  • Modeled perceptual and conceptual variables using semantic feature-based models.
  • Analyzed neural activity within the first 200 ms and post-200 ms after visual stimulus presentation.

Main Results:

  • Initial perceptual effects were observed in the visual cortex.
  • Semantic feature effects rapidly emerged in the ventral temporal cortex within 120 ms, reflecting shared features for coarse category distinctions.
  • Post-200 ms, both shared and distinctive features were processed along the ventral temporal cortex, facilitating object identification.

Conclusions:

  • Qualitatively different types of perceptual and semantic information are extracted from visual objects over time.
  • Rapid activation of shared object features supports early categorization.
  • Concomitant activation of distinctive features enables detailed conceptual differentiation and object recognition.