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Related Concept Videos

Perception01:28

Perception

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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...
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Factors Affecting Perception01:25

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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.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
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Perceptual Constancy01:12

Perceptual Constancy

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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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Perception of Sound Waves01:01

Perception of Sound Waves

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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...
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Gestalt Principles of Perception01:21

Gestalt Principles of Perception

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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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Apparent Weight01:09

Apparent Weight

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True weight is the measure of the gravitational force acting on an object. However, if the object accelerates, its measured weight is different from its true weight. Similar observations can be made when the object is submerged in water. An object's weight in water is its apparent weight, which is equal to the difference between its true weight and the buoyant forces.
Consider a person standing on a bathroom scale inside an elevator. If the scale is accurate at rest, its reading equals the...
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Visualization Method for Proprioceptive Drift on a 2D Plane Using Support Vector Machine
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Object perception: where do we see the weight?

Robert W Kentridge1

  • 1Department of Psychology, Durham University, Durham DH1 3LE, UK.

Current Biology : CB
|August 20, 2014
PubMed
Summary
This summary is machine-generated.

The human brain visually processes object weight in the ventral visual cortex. This brain region influences how we prepare to lift objects of varying heaviness.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Visual Perception

Background:

  • Understanding how the brain processes sensory information is crucial for cognitive neuroscience.
  • The ventral stream of the visual cortex is primarily associated with object recognition and visual processing.

Purpose of the Study:

  • To investigate how the human brain represents the weight of objects before lifting.
  • To determine the specific brain regions involved in processing object weight during visual perception.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) was used to monitor brain activity.
  • Participants viewed objects of different weights they were preparing to lift.

Main Results:

  • Object weight significantly influenced brain activity patterns.
  • Representation of object weight was identified in the ventral stream of the visual cortex.

Conclusions:

  • The ventral visual cortex plays a key role in representing object weight.
  • This visual processing influences motor preparation for lifting actions.