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Related Concept Videos

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...
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...
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...
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...
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...
Perception of Sound Waves01:01

Perception of Sound Waves

The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...

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Related Experiment Video

Updated: May 11, 2026

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

Neural correlates of the perception for novel objects.

Hao Zhang1, Jia Liu, Qinglin Zhang

  • 1Key Laboratory of Cognition and Personality, Ministry of Education, School of Psychology, Southwest University, Chongqing, China.

Plos One
|May 7, 2013
PubMed
Summary

Understanding novel objects is crucial. Brain imaging reveals the left precuneus integrates unusual features, while the right visual cortex detects them, aiding novel object perception.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Neuroimaging

Background:

  • Perception of novel objects is vital for daily life, from art appreciation to using new devices.
  • Understanding the neural basis of novel object perception is essential but remains largely unknown.
  • Novel object perception involves integrating unusual features to identify the object.

Purpose of the Study:

  • To investigate the neural mechanisms underlying the perception of novel objects.
  • To identify brain regions involved in processing unfamiliar visual stimuli.
  • To elucidate the roles of specific brain areas in novel object recognition.

Main Methods:

  • Functional Magnetic Resonance Imaging (fMRI) was used to study brain activity.
  • Participants viewed novel objects and ordinary objects during the scan.

More Related Videos

Novel Object Recognition Test for the Investigation of Learning and Memory in Mice
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Novel Object Recognition Test for the Investigation of Learning and Memory in Mice

Published on: August 30, 2017

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

Related Experiment Videos

Last Updated: May 11, 2026

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
09:25

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography

Published on: July 26, 2019

Novel Object Recognition Test for the Investigation of Learning and Memory in Mice
08:52

Novel Object Recognition Test for the Investigation of Learning and Memory in Mice

Published on: August 30, 2017

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

  • Neuroimaging data were analyzed to compare brain activation patterns.

    • Main Results:

    • Perception of novel objects showed significant activation in the left precuneus (Brodmann area 7).
    • The right visual cortex also demonstrated significant activation during novel object viewing.
    • These areas are implicated in processing and integrating unfamiliar visual information.

    Conclusions:

    • The left precuneus plays a key role in integrating unusual features of novel objects.
    • The right visual cortex is sensitive to detecting these unusual features.
    • The findings highlight the left precuneus as a critical hub for novel object perception.