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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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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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Sensory Perception: Organization of the Somatosensory System01:11

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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:
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Steps in the Modeling Process01:14

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Albert Bandura's theory of observational learning identifies four critical processes: attention, retention, motor reproduction, and reinforcement or motivation.
Attention is the first necessary component for observational learning. It involves focusing on what the model is doing and saying. For example, if you decide to take a drawing class to enhance your skills, you need to pay close attention to the instructor's words and hand movements. The characteristics of the model significantly...
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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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Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
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Updated: Jun 30, 2025

Visualization Method for Proprioceptive Drift on a 2D Plane Using Support Vector Machine
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Perception, action, and the body model.

Lara A Coelho1, Claudia L R Gonzalez2

  • 1Brain in Action Laboratory, Department of Kinesiology, University of Lethbridge, AB, Canada; UVIP: Unit for Visually Impaired People, Italian Institute of Technology, Genova, Italy.

Neuropsychologia
|March 15, 2024
PubMed
Summary
This summary is machine-generated.

The human body model, particularly for the hand, has systematic distortions. These distortions are not errors but may actually enhance the accuracy of actions like grasping and reaching.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Human Motor Control

Background:

  • The Perception and Action model (PAM) initially dissociated visual processing into ventral (perception) and dorsal (action) streams.
  • A somatosensory PAM was later proposed, suggesting separate body representations for perception and action.
  • The internal body model is crucial for proprioception (position sense).

Conclusions:

  • The body model of the hand, despite its distortions, is functional and essential for accurate motor actions.
  • The body model is shaped by both ventral and dorsal somatosensory streams.
  • The body model exemplifies the interconnectedness of perceptual and action-oriented processing in the somatosensory system.